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1. general description the tja1080a is a flexray transceiver, which is in line with the flexray electrical physical layer speci?cation v2.1 rev. a (see ref . 1 ). it is primarily intended for communication systems from 1 mbit/s to 10 mbit/s, and provides an advanced interface between the protocol controller and the physical bus in a flexray network. the tja1080a can be con?gured to be used as an active star transceiver or as a node transceiver. the tja1080a provides differential transmit capability to the network and differential receive capability to the flexray controller. it offers excellent emc performance as well as high esd protection. the tja1080a actively monitors the system performance using dedicated error and status information (readable by any microcontroller), as well as internal voltage and temperature monitoring. the tja1080a supports the mode control as used in nxp semiconductors tja1054 (see ref . 2 ) and tja1041 (see ref . 3 ) can transceivers. the tja1080a is the next step up from the tja1080 flexray transceiver ( ref . 4 ). being fully pin compatible and offering the same excellent esd protection, the tja1080a also features: ? improved power-on reset concept ? improved electromagnetic emission (eme) ? support of 70 ns minimum bit time ? improved bus error detection functionality this makes the tja1080a an excellent choice in any kind of flexray nodes. see section 14 for a detailed overview of differences between the tja1080 and the tja1080a. 2. features 2.1 optimized for time triggered communication systems n compliant with flexray electrical physical layer speci?cation v2.1 rev. a (see ref . 1 ) n automotive product quali?cation in accordance with aec-q100 n data transfer up to 10 mbit/s n support of 70 ns minimum bit time tja1080a flexray transceiver rev. 02 26 august 2008 preliminary data sheet
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 2 of 50 nxp semiconductors tja1080a flexray transceiver n very low eme to support unshielded cable n differential receiver with high common-mode range for electromagnetic immunity (emi) n auto i/o level adaptation to host controller supply voltage v io n usable for 14 v and 42 v powered systems n bus guardian interface included n independent power supply ramp-up for v bat , v cc and v io n transceiver can be used for linear passive bus topologies as well as active star topologies 2.2 low power management n low power management including two inhibit switches n very low current in sleep and standby mode n wake-up via wake-up symbol or dedicated flexray data frames on the bus lines (remote), negative edge on pin wake (local), and a positive edge on pin stbn if v io is present n wake-up source recognition n automatic power-down (in star-sleep mode) in star con?guration 2.3 diagnosis (detection and signalling) n overtemperature detection n short-circuit on bus lines n v bat power-on ?ag (?rst battery connection and cold start) n pin txen and pin bge clamping n undervoltage detection on pins v bat , v cc and v io n wake source indication 2.4 protections n bus pins protected against 8 kv hbm esd pulses n bus pins protected against transients in automotive environment (iso 7637 class c compliant) n bus pins short-circuit proof to battery voltage (14 v and 42 v) and ground n fail-safe mode in case of an undervoltage on pins v bat , v cc or v io n passive behavior of bus lines in the event that transceiver is not powered 2.5 functional classes according to flexray electrical physical layer speci?cation (see ref . 1 ) n bus driver voltage regulator control n bus driver - bus guardian control interface n bus driver logic level adaption n active star - communication controller interface n active star - bus guardian interface n active star voltage regulator control
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 3 of 50 nxp semiconductors tja1080a flexray transceiver 3. ordering information table 1. ordering information type number package name description version tja1080ats/1 ssop20 plastic shrink small outline package; 20 leads; body width 5.3 mm sot339-1
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 4 of 50 nxp semiconductors tja1080a flexray transceiver 4. block diagram fig 1. block diagram trxd0 v io v buf v bat inh2 inh1 signal router trans- mitter bus failure detection normal receiver input voltage adaptation output voltage adaptation state machine 001aag892 tja1080a v cc v io bp bm trxd1 txd rxd rxdint rxdint v bat errn rxen wake-up detection oscillator undervoltage detection wake over- temperature detection low- power receiver txen bge stbn en 11 10 419 2014 5 7 13 18 1 2 17 12 15 16 gnd 6 8 9 3
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 5 of 50 nxp semiconductors tja1080a flexray transceiver 5. pinning information 5.1 pinning 5.2 pin description fig 2. pin con?guration tja1080ats inh2 v buf inh1 v cc en bp v io bm txd gnd txen wake rxd v bat bge errn stbn rxen trxd1 trxd0 001aag893 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19 table 2. pin description symbol pin type description inh2 1 o inhibit 2 output for switching external voltage regulator inh1 2 o inhibit 1 output for switching external voltage regulator en 3 i enable input; when high enabled; internal pull-down v io 4 p supply voltage for v io voltage level adaptation txd 5 i transmit data input; internal pull-down txen 6 i transmitter enable input; when high transmitter disabled; internal pull-up rxd 7 o receive data output bge 8 i bus guardian enable input; when low transmitter disabled; internal pull-down stbn 9 i standby input; low-power mode when low; internal pull-down trxd1 10 i/o data bus line 1 for inner star connection trxd0 11 i/o data bus line 0 for inner star connection rxen 12 o receive data enable output; when low bus activity detected errn 13 o error diagnoses output; when low error detected v bat 14 p battery supply voltage wake 15 i local wake-up input; internal pull-up or pull-down (depends on voltage at pin wake) gnd 16 p ground bm 17 i/o bus line minus bp 18 i/o bus line plus v cc 19 p supply voltage (+5 v) v buf 20 p buffer supply voltage
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 6 of 50 nxp semiconductors tja1080a flexray transceiver 6. functional description the block diagram of the total transceiver is illustrated in figure 1 . 6.1 operating con?gurations 6.1.1 node con?guration in node con?guration the transceiver operates as a stand-alone transceiver. the transceiver can be con?gured as node by connecting pins trxd0 and trxd1 to ground during a power-on situation (pwon ?ag is set). the con?guration will be latched when the pwon ?ag is reset, see section 6.7.4 . the following operating modes are available: ? normal (normal power mode) ? receive-only (normal power mode) ? standby (low power mode) ? go-to-sleep (low power mode) ? sleep (low power mode) 6.1.2 star con?guration in star con?guration the transceiver operates as a branch of a flexray active star. the transceiver can be con?gured as star by connecting pin trxd0 or trxd1 to v buf during a pwon situation (pwon ?ag is set). the con?guration will be latched when the pwon ?ag is reset, see section 6.7.4 p o w er-on ? ag . it is possible to redirect data from one branch to other branches via the inner bus. it is also possible to send data to all branches via pin txd, if pins txen and bge have the correct polarity. the following operating modes are available: ? star-idle (normal power mode) ? star-transmit (normal power mode) ? star-receive (normal power mode) ? star-sleep (low power mode) ? star-standby (low power mode) ? star-locked (normal power mode) in the star con?guration all modes are autonomously controlled by the transceiver, except in the case of a wake-up.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 7 of 50 nxp semiconductors tja1080a flexray transceiver 6.1.3 bus activity and idle detection the following mechanisms for activity and idle detection are valid for node and star con?gurations in normal power modes: ? if the absolute differential voltage on the bus lines is higher than | v i(dif)det(act) | for t det(act)(bus) , then activity is detected on the bus lines and pin rxen is switched to low which results in pin rxd being released: C if, after bus activity detection, the differential voltage on the bus lines is higher than v ih(dif) , pin rxd will go high C if, after bus activity detection, the differential voltage on the bus lines is lower than v il(dif) , pin rxd will go low ? if the absolute differential voltage on the bus lines is lower than | v i(dif)det(act) | for t det(idle)(bus) , then idle is detected on the bus lines and pin rxen is switched to high. this results in pin rxd being blocked (pin rxd is switched to high or stays high) additionally, in star con?guration, activity and idle can be detected (see figure 6 for state transitions due to activity/idle detection in star con?guration): ? if pin txen is low for longer than t det(act)(txen) , activity is detected on pin txen ? if pin txen is high for longer than t det(idle)(txen) , idle is detected on pin txen ? if pin trxd0 or trxd1 is low for longer than t det(act)(trxd) , activity is detected on pins trxd0 and trxd1 ? if pin trxd0 and trxd1 is high for longer than t det(idle)(trxd) , idle is detected on pins trxd0 and trxd1 6.2 operating modes in node con?guration the tja1080a provides two control pins stbn and en in order to select one of the modes of operation in node con?guration. see t ab le 3 for a detailed description of the pin signalling in node con?guration, and figure 3 for the timing diagram. all modes are directly controlled via pins en and stbn unless an undervoltage situation is present. if v io and (v buf or v bat ) are within their operating range, pin errn indicates the status of the error ?ag. [1] pin errn provides a serial interface for retrieving diagnostic information. [2] valid if v io and (v buf or v bat ) are present. [3] if wake ?ag is not set. table 3. pin signalling in node con?guration mode stbn en errn [1] rxen rxd transmitter inh1 inh2 low high low high low high normal high high error ?ag set error ?ag reset bus activity bus idle bus data_0 bus data_1 or idle enabled high high receive-only high low disabled go-to-sleep low high error ?ag set [2] error ?ag reset wake ?ag set [2] wake ?ag reset wake ?ag set [2] wake ?ag reset ?oat [3] standby low low sleep low x ?oat ?oat
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 8 of 50 nxp semiconductors tja1080a flexray transceiver the state diagram in node con?guration is illustrated in figure 5 . fig 3. timing diagram in normal mode node con?guration 001aae439 txd bge rxd bm bp rxen txen fig 4. timing diagram of control pins en and stbn 001aag894 s2 t det(en) t det(en) t d(stbn-inh2) t d(stbn-rxd) normal receive only standby receive only normal stbn en errn 0.7v io 0.3v io 0.7v io 0.3v io
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 9 of 50 nxp semiconductors tja1080a flexray transceiver the state transitions are represented with numbers, which correspond with the numbers in column 3 of t ab le 4 to t ab le 7 . (1) at the ?rst battery connection the transceiver will enter the standby mode. fig 5. state diagram in node con?guration 001aae438 normal stbn = high en = high standby (1) stbn = low en = low sleep stbn = low en = x go-to-sleep stbn = low en = high receive only stbn = high en = low 1 4 12, 22 9, 18 11, 21 31, 32 7, 16, 38 3, 30 6, 33 10, 20 2 8, 17, 39 15, 25, 42, 43 5 19 23 26, 44 27, 45 36, 37 13, 34, 35 14, 24, 40, 41 28, 29
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 10 of 50 nxp semiconductors tja1080a flexray transceiver [1] stbn must be set to low at least t det(en) after the falling edge on en. [2] positive edge on pin stbn sets the wake ?ag. in the case of a transition to normal mode the wake ?ag is immediately cleared. [3] setting the wake ?ag clears the uv vio , uv vbat and uv vcc ?ag. [4] hold time of go-to-sleep is less than the minimum hold time. [5] hold time of go-to-sleep becomes greater than the minimum hold time. table 4. state transitions forced by en and stbn (node con?guration) ? indicates the action that initiates a transaction; ? 1 and ? 2 are the consequences of a transaction. transition from mode direction to mode transition number pin flag note stbn en uv vio uv vbat uv vcc pwon wake normal receive-only 1 h ? l cleared cleared cleared cleared cleared go-to-sleep 2 ? l h cleared cleared cleared cleared cleared standby 3 ? l ? l cleared cleared cleared cleared cleared [1] receive-only normal 4 h ? h cleared cleared cleared x x go-to-sleep 5 ? l ? h cleared cleared cleared x x standby 6 ? l l cleared cleared cleared x x standby normal 7 ? h ? h cleared cleared 2 ? cleared x 1 ? cleared [2] [3] receive-only 8 ? h l cleared cleared 2 ? cleared x 1 ? set [2] [3] go-to-sleep 9 l ? h cleared cleared x x x go-to-sleep normal 10 ? h h cleared cleared cleared x 1 ? cleared [2] [4] receive-only 11 ? h ? l cleared cleared cleared x 1 ? set [2] [4] standby 12 l ? l cleared cleared x x x [4] sleep 13 l h cleared cleared x x cleared [5] sleep normal 14 ? hh 2 ? cleared 2 ? cleared 2 ? cleared x 1 ? cleared [2] [3] receive-only 15 ? hl 2 ? cleared 2 ? cleared 2 ? cleared x 1 ? set [2] [3]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 11 of 50 nxp semiconductors tja1080a flexray transceiver [1] setting the wake ?ag clears the uv vio , uv vbat and uv vcc ?ag. [2] transition via standby mode. table 5. state transitions forced by a wake-up (node con?guration) ? indicates the action that initiates a transaction; ? 1 and ? 2 are the consequences of a transaction. transition from mode direction to mode transition number pin flag note stbn en uv vio uv vbat uv vcc pwon wake standby normal 16 h h cleared cleared 1 ? cleared x ? set [1] receive-only 17 h l cleared cleared 1 ? cleared x ? set [1] go-to-sleep 18 l h cleared cleared 1 ? cleared x ? set [1] standby 19 l l cleared cleared 1 ? cleared x ? set [1] go-to-sleep normal 20 h h cleared cleared 1 ? cleared x ? set [1] receive-only 21 h l cleared cleared 1 ? cleared x ? set [1] standby 22 l l cleared cleared 1 ? cleared x ? set [1] go-to-sleep 23 l h cleared cleared 1 ? cleared x ? set [1] sleep normal 24 h h 1 ? cleared 1 ? cleared 1 ? cleared x ? set [1] [2] receive-only 25 h l 1 ? cleared 1 ? cleared 1 ? cleared x ? set [1] [2] standby 26 l l 1 ? cleared 1 ? cleared 1 ? cleared x ? set [1] go-to-sleep 27 l h 1 ? cleared 1 ? cleared 1 ? cleared x ? set [1] [2]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 12 of 50 nxp semiconductors tja1080a flexray transceiver [1] uv vio , uv vbat or uv vcc detected clears the wake ?ag. [2] uv vio overrules uv vcc . [3] uv vbat overrules uv vcc . table 6. state transitions forced by an undervoltage condition (node con?guration) ? indicates the action that initiates a transaction; ? 1 and ? 2 are the consequences of a transaction. transition from mode direction to mode transition number flag note uv vio uv vbat uv vcc pwon wake normal sleep 28 ? set cleared cleared cleared cleared [1] sleep 29 cleared ? set cleared cleared cleared [1] standby 30 cleared cleared ? set cleared cleared [1] receive-only sleep 31 ? set cleared cleared x 1 ? cleared [1] sleep 32 cleared ? set cleared x 1 ? cleared [1] standby 33 cleared cleared ? set x 1 ? cleared [1] go-to-sleep sleep 34 ? set cleared cleared x 1 ? cleared [1] sleep 35 cleared ? set cleared x 1 ? cleared [1] standby sleep 36 ? set cleared x x 1 ? cleared [1] [2] sleep 37 cleared ? set x x 1 ? cleared [1] [3]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 13 of 50 nxp semiconductors tja1080a flexray transceiver [1] recovery of uv vcc ?ag. [2] recovery of uv vbat ?ag. [3] clearing the uv vbat ?ag sets the wake ?ag. in the case of a transition to normal mode the wake ?ag is immediately cleared. [4] recovery of uv vio ?ag. table 7. state transitions forced by an undervoltage recovery (node con?guration) ? indicates the action that initiates a transaction; ? 1 and ? 2 are the consequences of a transaction. transition from mode direction to mode transition number pin flag note stbn en uv vio uv vbat uv vcc pwon wake standby normal 38 h h cleared cleared ? cleared x x [1] receive-only 39 h l cleared cleared ? cleared x x [1] sleep normal 40 h h cleared ? cleared cleared x 1 ? cleared [2] [3] normal 41 h h ? cleared cleared cleared x x [4] receive-only 42 h l cleared ? cleared cleared x 1 ? set [2] [3] receive-only 43 h l ? cleared cleared cleared x x [4] standby 44 l l cleared ? cleared cleared x 1 ? set [2] [3] sleep 45 l x ? cleared cleared cleared x cleared [4] go-to-sleep 46 l h cleared ? cleared cleared x 1 ? set [2] [3] sleep 47 l x ? cleared cleared cleared x cleared [4]
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 14 of 50 nxp semiconductors tja1080a flexray transceiver 6.2.1 normal mode in normal mode the transceiver is able to transmit and receive data via the bus lines bp and bm. the output of the normal receiver is directly connected to pin rxd. the transmitter behavior in normal mode of operation, with no time-out present on pins txen and bge and the temperature ?ag not set, is given in t ab le 8 . in this mode pins inh1 and inh2 are set high. 6.2.2 receive-only mode in receive-only mode the transceiver can only receive data. the transmitter is disabled, regardless of the voltages on pins bge and txen. in this mode pins inh1 and inh2 are set high. 6.2.3 standby mode in standby mode the transceiver has entered a low power mode which means very low current consumption. in the standby mode the device is not able to transmit or receive data and the low power receiver is activated to monitor for bus wake-up patterns. standby mode can be entered if the correct polarity is applied to pins en and stbn (see figure 5 and t ab le 4 ) or an undervoltage is present on pin v cc ; see figure 5 . pin inh1 is set to high. if the wake ?ag is set, pin inh2 is set to high and pins rxen and rxd are set to low, otherwise pin inh2 is ?oating and pins rxen and rxd are set to high; see section 6.5 . 6.2.4 go-to-sleep mode in this mode the transceiver behaves as in standby mode. if this mode is selected for a longer time than the go-to-sleep hold time parameter (minimum hold time) and the wake ?ag has been previously cleared, the transceiver will enter sleep mode, regardless of the voltage on pin en. table 8. transmitter function table bge txen txd transmitter l x x transmitter is disabled x h x transmitter is disabled h l h transmitter is enabled; the bus lines are actively driven; bp is driven high and bm is driven low h l l transmitter is enabled; the bus lines are actively driven; bp is driven low and bm is driven high
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 15 of 50 nxp semiconductors tja1080a flexray transceiver 6.2.5 sleep mode in sleep mode the transceiver has entered a low power mode. the only difference with standby mode is that pin inh1 is also set ?oating. sleep mode is also entered if the uv vio or uv vbat ?ag is set. in case of an undervoltage on pin v cc or v bat while v io is present, the wake ?ag is set by a positive edge on pin stbn. the undervoltage ?ags will be reset by setting the wake ?ag, and therefore the transceiver will enter the mode indicated on pins en and stbn if v io is present. a detailed description of the wake-up mechanism is given in section 6.5 . 6.3 operating modes in star con?guration in star con?guration mode control via pins en and stbn is not possible. the transceiver autonomously controls the operating modes except in the case of wake-up. the timing diagram of a transceiver con?gured in star con?guration is illustrated in figure 7 . the state diagram in star con?guration is illustrated in figure 6 . a detailed description of the pin signalling in star con?guration is given in t ab le 9 . if v io and (v buf or v bat ) are within their operating range, pin errn will indicate the error ?ag. [1] pin errn provides a serial interface for retrieving diagnostic information. [2] trxd lines switched as output if txen activity is the initiator for star-transmit mode. [3] trxd lines are switched as input if trxd activity is the initiator for star-transmit mode. [4] valid if v io and (v buf or v bat ) are present. pin bge must be high in order to enable the transmitter via pin txen. if pin bge is low, it is not possible to activate the transmitter via pin txen. if pin txen is not used (no controller connected to the transceiver), it has to be connected to pin gnd in order to prevent txen activity detection. in all normal modes pin rxd is connected to the output of the normal mode receiver and therefore represents the data on the bus lines. table 9. pin signalling in star con?guration mode trxd0 / trxd1 errn [1] rxen rxd transmitter inh1 inh2 low high low high low high star-transmit output [2] input [3] error ?ag set error ?ag reset bus activity bus idle bus data_0 bus data_1 or idle enabled high high star-receive output disabled star-idle input star-locked input star-standby input error ?ag set [4] error ?ag reset wake ?ag set [4] wake ?ag reset wake ?ag set [4] wake ?ag reset star-sleep input ?oat ?oat
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 16 of 50 nxp semiconductors tja1080a flexray transceiver (1) at the ?rst battery connection the transceiver will enter the star-standby mode. fig 6. state diagram in star con?guration 001aae441 star transmit inh1 = high inh2 = high star idle inh1 = high inh2 = high star locked inh1 = high inh2 = high star sleep inh1 = floating inh2 = floating idle detected on trxd0, trxd1, txen and the bus lines trxd0, trxd1, txen activity detected star receive inh1 = high inh2 = high star standby (1) inh1 = high inh2 = high idle detected on trxd0, trxd1, txen and the bus lines idle detected on the bus lines and txen for longer than t to(locked-idle) txen activity detected for longer than t to(tx-locked) bus activity detected for longer than t to(rx-locked) bus activity detected wake flag 1 wake flag 1 or uv vcc signal 0 no acivity on trxd0, trxd1, txen and the bus lines for longer than t to(idle-sleep) from any mode if uv vcc flag is set regardless pwon flag from star idle, star transmit or star receive if wake flag set and under voltage present on v cc for longer than t > t to(uv)(vcc) time in star locked longer than t to(locked-sleep)
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 17 of 50 nxp semiconductors tja1080a flexray transceiver 6.3.1 star-idle mode this mode is entered if one of the following events occurs: ? from star-receive mode and star-transmit mode if idle is detected on the bus lines, on pin txen and on pins trxd0 and trxd1. ? if the transceiver is in star-locked mode and idle is detected on the bus lines and pin txen for longer than t to(locked-idle) . ? if the transceiver is in star-standby mode and the wake ?ag is set or no undervoltage is present. ? if the transceiver is in star-sleep mode and the wake ?ag is set, the transceiver enters star-idle mode in order to obtain a stable starting point (no glitches on the bus lines etc.). in star-idle mode the transceiver monitors pins txen, trxd0 and trxd1 and the bus lines for activity. in this mode the transmitter is disabled. trxdout is a virtual signal that indicates the state of the trxd lines. trxdout high means trxd lines switched as output. trxdout low means trxd lines switched as input. fig 7. timing diagram in star con?guration 001aae440 txen txd rxd bm bp trxd1 trxd0 star transmit star idle star idle star idle star receive star transmit rxen trxdout
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 18 of 50 nxp semiconductors tja1080a flexray transceiver 6.3.2 star-transmit mode this mode is entered if one of the following events occur: ? if the transceiver is in star-idle mode and activity is detected on pin txen. ? if the transceiver is in star-idle mode and activity is detected on pins trxd0 and trxd1. in star-transmit mode the transmitter is enabled and the transceiver can transmit data on the bus lines and on the trxd lines. it transmits the data received on pins txd or trxd0 and trxd1, depending on where activity is detected: ? if activity is detected on the trxd lines, the transceiver transmits data from pins trxd0 and trxd1 to the bus. ? if activity is detected on the txen, the transceiver transmits data from pin txd to the bus and to the trxd lines. 6.3.3 star-receive mode this mode is entered if the transceiver is in star-idle mode and activity has been detected on the bus lines. in star-receive mode the transceiver transmits data received on the bus via the trxd0 and trxd1 lines to other transceivers connected to the trxd lines. the transmitter is always disabled. rxd, which represents the data on the bus lines, is output at trxd0 and trxd1. 6.3.4 star-standby mode this mode is entered if one of the following events occur: ? from star-idle, star-transmit or star-receive modes if the wake ?ag is set and an undervoltage on pin v cc is present for longer than t to(uv)(vcc) . ? if the pwon ?ag is set. in star-standby mode the transceiver has entered a low power mode. in this mode the current consumption is as low as possible to prevent discharging the capacitor at pin v buf . if pins v io and v buf are within their operating range, pins rxd and rxen will indicate the wake ?ag.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 19 of 50 nxp semiconductors tja1080a flexray transceiver 6.3.5 star-sleep mode this mode is entered if one of the following events occur: ? from any mode if an undervoltage on pin v cc is present for longer than t det(uv)(vcc) . ? if the transceiver is in star-idle mode and no activity is detected on the bus lines and pins txen, trxd0 and trxd1 for longer than t to(idle-sleep) . ? if star-locked mode is active for longer than t to(locked-sleep) . in star-sleep mode the transceiver has entered a low power mode. in this mode the current consumption is as low as possible to prevent the car battery from discharging. the inhibit switches are switched off. in this mode the wake ?ag wakes the transceiver. a detailed description of the wake-up mechanism is given in section 6.5 . if pins v io and v buf are within their operating range, pins rxd and rxen will indicate the wake ?ag. 6.3.6 star-locked mode this mode is entered if one of the following events occur: ? if the transceiver is in star-transmit mode and activity on pin txen is detected for longer than t to(tx-locked) . ? if the transceiver is in star-receive mode and activity is detected on the bus lines for longer than t to(rx-locked) . this mode is a fail-silent mode and in this mode the transmitter is disabled. 6.4 start-up the tja1080a initialization is independent of the way the voltage supplies v bat ,v cc and v io ramp up. a dedicated power-up sequence is not necessary. 6.4.1 node con?guration node con?guration can be selected by applying a voltage lower than 0.3v buf to pins trxd0 and trxd1 during power-on. node con?guration is latched by resetting the pwon ?ag while the voltage on pins trxd0 and trxd1 is lower than 0.3v buf ; see section 6.7.4 for (re)setting the pwon ?ag. 6.4.2 star con?guration star con?guration can be selected by applying a voltage higher than 0.7v buf to pins trxd0 or trxd1 during power-on. star con?guration is latched by resetting the pwon ?ag while one of the voltages on pins trxd0 or trxd1 is higher than 0.7v buf . see section 6.7.4 for (re)setting the pwon ?ag. in this case the transceiver goes from star-standby mode to star-idle mode.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 20 of 50 nxp semiconductors tja1080a flexray transceiver 6.5 wake-up mechanism 6.5.1 node con?guration in sleep mode (pins inh1 and inh2 are switched off), the transceiver will enter standby mode or go-to-sleep mode (depending on the value at pin en), if the wake ?ag is set. consequently, pins inh1 and inh2 are switched on. if no undervoltage is present on pins v io and v bat , the transceiver switches immediately to the mode indicated on pins en and stbn. in standby, go-to-sleep and sleep mode pins rxd and rxen are driven low if the wake ?ag is set. 6.5.2 star con?guration in star-sleep mode (pins inh1 and inh2 are switched off), the transceiver will enter star-idle mode (pins inh1 and inh2 are switched on) if the wake ?ag is set. after entering star-idle mode the transceiver monitors for activity to choose the appropriate mode transition (see figure 6 ). 6.5.3 remote wake-up 6.5.3.1 bus wake-up via wake-up pattern bus wake-up is detected if two consecutive data_0 of at least t det(wake)data_0 separated by an idle or data_1 of at least t det(wake)idle , followed by an idle or data_1 of at least t det(wake)idle are present on the bus lines within t det(wake)tot . 6.5.3.2 bus wake-up via dedicated flexray data frame the reception of a dedicated data frame, emulating a valid wake-up pattern, as shown in figure 9 , sets the wake-up ?ag of the tja1080a. due to the byte start sequence (bss), preceding each byte, the data_0 and data_1 phases for the wake-up symbol are interrupted every 1 m s. for 10 mbit/s the maximum interruption time is 150 ns. such interruptions do not prevent the transceiver from recognizing the wake-up pattern in the payload of a data frame. the wake-up ?ag will not be set upon reception of an invalid wake-up pattern. fig 8. bus wake-up timing 001aae442 0 v - 425 mv v dif t det(wake)tot t det(wake)data_0 t det(wake)idle t det(wake)data_0 t det(wake)idle
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 21 of 50 nxp semiconductors tja1080a flexray transceiver 6.5.4 local wake-up via pin wake if the voltage on pin wake is lower than v th(det)(wake) for longer than t wake(wake) (falling edge on pin wake) a local wake-up event on pin wake is detected. at the same time, the biasing of this pin is switched to pull-down. if the voltage on pin wake is higher than v th(det)(wake) for longer than t wake(wake) , the biasing of this pin is switched to pull-up, and no local wake-up will be detected. each interruption is 150 ns. the transition time from data_0 to data_1 and from data_1 to data_0 is about 20 ns. the tja1080a wake-up ?ag will be set with the following pattern: ffh, ffh, ffh, ffh, ffh, 00h, 00h, 00h, 00h, 00h, ffh, ffh, ffh, ffh, ffh, 00h, 00h, 00h, 00h, 00h, ffh, ffh, ffh, ffh, ffh, 00h, 00h, 00h, 00h, 00h, ffh, ffh, ffh, ffh, ffh, ffh fig 9. minimum bus pattern for bus wake-up 001aag895 v dif 0 v - 1500 wake-up +1500 850 ns 850 ns 850 ns 850 ns 750 ns 150 ns 150 ns 150 ns 5 m s 5 m s 5 m s 5 m s sleep mode: v io and (v bat or v cc ) still provided. fig 10. local wake-up timing via pin wake 001aae443 v bat v bat rxd and rxen inh1 and inh2 0 v 0 v wake t wake(wake) pull-up pull-up t wake(wake) pull-down
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 22 of 50 nxp semiconductors tja1080a flexray transceiver 6.6 fail silent behavior in order to be fail silent, undervoltage detection and a reset mechanism for the digital state machine is implemented. if an undervoltage is detected on pins v cc , v io and/or v bat , the transceiver will enter a low power mode. this ensures a passive and de?ned behavior of the transmitter and receiver in case of an undervoltage detection. in the region between the minimum operating voltage and the undervoltage detection threshold, the principle function of the transmitter and receiver is maintained. however, in this region parameters (e.g. thresholds and delays of the transmitter and receiver) may deviate from the range speci?ed for the operating range. the digital state machine is supplied by v cc , v io or v bat , depending on which voltage is available. therefore, the digital state machine will be properly supplied as long as the voltage on pin v cc or pin v io remains above 4.75 v or the voltage on pin v bat remains above 6.5 v. if the voltage on all pins v cc ,v io and v bat breaks down, a reset signal will be given to the digital state machine as soon as the internal supply voltage for the digital state machine is not suf?cient for proper operation of the state machine. this ensures a passive and de?ned behavior of the digital state machine in case of an overall supply voltage breakdown. 6.6.1 v bat undervoltage ? node con?guration: if the uv vbat ?ag is set the transceiver will enter sleep mode (pins inh1 and inh2 are switched off) regardless of the voltage present on pins en and stbn. if the undervoltage recovers the wake ?ag will be set and the transceiver will enter the mode determined by the voltages on pins en and stbn. ? star con?guration: the tja1080a in star con?guration is able to transmit and receive data as long as v cc and v io are within their operating ranges, regardless of the undervoltage on v bat . 6.6.2 v cc undervoltage ? node con?guration: if the uv vcc ?ag is set the transceiver will enter the standby mode (pin inh2 is switched off) regardless of the voltage present on pins en and stbn. if the undervoltage recovers or the wake ?ag is set mode switching via pins en and stbn is possible. ? star con?guration: if the uv vcc ?ag is set the transceiver will enter the star-sleep mode. 6.6.3 v io undervoltage ? node con?guration: if the voltage on pin v io is lower than v uvd(vio) (even if the uv vio ?ag is reset) pins en, stbn, txd and bge are set low (internally) and pin txen is set high (internally). if the uv vio ?ag is set the transceiver will enter sleep mode (pins inh1 and inh2 are switched off). if the undervoltage recovers or the wake ?ag is set, mode switching via pins en and stbn is possible.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 23 of 50 nxp semiconductors tja1080a flexray transceiver ? star con?guration: if an undervoltage is present on pin v io (even if the uv vio ?ag is reset) pins en, stbn, txd and bge are set low (internally) and pin txen is set high (internally). if the uv vio ?ag is set, pin inh1 is switched off. if an undervoltage is present on pin v io and v cc is within the operating range, the tja1080a will forward the received data on trxd or bus lines to all other branches. 6.7 flags 6.7.1 local wake-up source ?ag the local wake-up source ?ag can only be set in a low power mode. when a wake-up event on pin wake is detected (see section 6.5.4 ) it sets the local wake-up source ?ag. the local wake-up source ?ag is reset by entering a low power mode. 6.7.2 remote wake-up source ?ag the remote wake-up source ?ag can only be set in a low power mode if pin v bat is within its operating range. when a remote wake-up event is detected on the bus lines (see section 6.5.3 ) it sets the remote wake-up source ?ag. the remote wake-up source ?ag is reset by entering a low power mode. 6.7.3 wake ?ag the wake ?ag is set if one of the following events occurs: ? the local or remote wake-up source ?ag is set (edge sensitive) ? a positive edge is detected on pin stbn if v io is present ? recovery of the uv vbat ?ag (only in node con?guration) ? by recognizing activity on pins trxd0 and trxd1 (only in star con?guration) in node con?guration the wake ?ag is reset by entering normal mode, a low power mode or setting one of the undervoltage ?ags. in star con?guration the wake ?ag is reset by entering a low power mode or by recovery of the uv vcc signal (without t rec(uv)(vcc) ). 6.7.4 power-on ?ag the pwon ?ag is set if the internal supply voltage for the digital part becomes higher than the lowest value it needs to operate. in node con?guration, entering normal mode resets the pwon ?ag. in star con?guration the pwon ?ag is reset when the uv vcc signal goes low (no undervoltage detected). 6.7.5 node con?guration ?ag con?guration ?ag set means node con?guration. 6.7.6 temperature medium ?ag the temperature medium ?ag is set if the junction temperature exceeds t j(warn)(medium) in a normal power mode while pin v bat is within its operating range. the temperature medium ?ag is reset when the junction temperature drops below t j(warn)(medium) in a normal power mode with pin v bat within its operating range or after a read of the status register in a low power mode while pin v bat is within its operating range. no action will be taken if this ?ag is set.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 24 of 50 nxp semiconductors tja1080a flexray transceiver 6.7.7 temperature high ?ag the temperature high ?ag is set if the junction temperature exceeds t j(dis)(high) in a normal power mode while pin v bat is within its operating range. in node con?guration the temperature high ?ag is reset if a negative edge is applied to pin txen while the junction temperature is lower than t j(dis)(high) in a normal power mode with pin v bat within its operating range. in star con?guration, the temperature high ?ag is reset by any activity detection (edge) while the junction temperature is lower than t j(dis)(high) in a normal power mode while pin v bat is within its operating range. if the temperature high ?ag is set the transmitter is disabled and pins trxd0 and trxd1 are switched off. 6.7.8 txen_bge clamped ?ag the txen_bge clamped ?ag is set if pin txen is low and pin bge is high for longer than t detcl(txen_bge) . the txen_bge clamped ?ag is reset if pin txen is high or pin bge is low. if the txen_bge ?ag is set, the transmitter is disabled. 6.7.9 bus error ?ag the bus error ?ag is set if pin txen is low and pin bge is high and the data received from the bus lines (pins bp and bm) is different to that received on pin txd. additionally in star con?guration the bus error ?ag is also set if the data received on the bus lines is different to that received on pins trxd0 and trxd1. the transmission of any valid communication element, including a wake-up pattern, does not lead to bus error indication. the error ?ag is reset if the data on the bus lines (pins bp and bm) is the same as on pin txd or if the transmitter is disabled. no action will be taken if the bus error ?ag is set. 6.7.10 uv vbat ?ag the uv vbat ?ag is set if the voltage on pin v bat is lower than v uvd(vbat) . the uv vbat ?ag is reset if the voltage is higher than v uvd(vbat) or by setting the wake ?ag; see section 6.6.1 . 6.7.11 uv vcc ?ag the uv vcc ?ag is set if the voltage on pin v cc is lower than v uvd(vcc) for longer than t det(uv)(vcc) . the ?ag is reset if the voltage on pin v cc is higher than v uvd(vcc) for longer than t rec(uv)(vcc) or the wake ?ag is set; see section 6.6.2 . 6.7.12 uv vio ?ag the uv vio ?ag is set if the voltage on pin v io is lower than v uvd(vio) for longer than t det(uv)(vio) . the ?ag is reset if the voltage on pin v io is higher than v uvd(vio) or the wake ?ag is set; see section 6.6.3 . 6.7.13 error ?ag the error ?ag is set if one of the status bits s4 to s12 is set. the error ?ag is reset if none of the s4 to s12 status bits are set; see t ab le 10 .
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 25 of 50 nxp semiconductors tja1080a flexray transceiver 6.8 trxd collision a trxd collision is detected when both trxd lines are low for more than the trxd collision detection time (t det(col)(trxd) ) in star con?guration. 6.9 status register the status register can be read out on pin errn by using pin en as clock; the status bits are given in t ab le 10 . the timing diagram is illustrated in figure 11 . the status register is accessible if: ? uv vio ?ag is not set and the voltage on pin v io is between 4.75 v and 5.25 v ? uv vcc ?ag is not set and the voltage on pin v io is between 2.2 v and 4.75 v after reading the status register, if no edge is detected on pin en for longer than t det(en) , the status bits (s4 to s12) will be cleared if the corresponding ?ag has been reset. pin errn is low if the corresponding status bit is set. table 10. status bits bit number status bit description s0 local wakeup local wake-up source ?ag is redirected to this bit s1 remote wakeup remote wake-up source ?ag is redirected to this bit s2 node config node con?guration ?ag is redirected to this bit s3 pwon status bit set means pwon ?ag has been set previously s4 bus error status bit set means bus error ?ag has been set previously s5 temp high status bit set means temperature high ?ag has been set previously s6 temp medium status bit set means temperature medium ?ag has been set previously s7 txen_bge clamped status bit set means txen_bge clamped ?ag has been set previously s8 uvvbat status bit set means uv vbat ?ag has been set previously s9 uvvcc status bit set means uv vcc ?ag has been set previously s10 uvvio status bit set means uv vio ?ag has been set previously s11 star locked status bit is set if star-locked mode has been entered previously s12 trxd collision status bit is set if a trxd collision has been detected previously
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 26 of 50 nxp semiconductors tja1080a flexray transceiver fig 11. timing diagram for status bits 001aag896 s0 s1 s2 t en t det(en) t d(en-errn) receive only normal stbn en errn 0.7v io 0.7v io 0.7v io 0.3v io
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 27 of 50 nxp semiconductors tja1080a flexray transceiver 7. limiting values [1] according to iso 7637, part 3 test pulses a and b; class c; see figure 15 ; r l = 45 w ; c l = 100 pf. [2] according to iso 7637, part 2 test pulses 1, 2, 3a and 3b; class c; see figure 15 ; r l = 45 w ; c l = 100 pf. [3] according to iso 7637, part 2 test pulse 4; class c; see figure 15 ; r l = 45 w ; c l = 100 pf. [4] according to iso 7637, part 2 test pulse 5b; class c; see figure 15 ; r l = 45 w ; c l = 100 pf; v bat = 24 v. table 11. limiting values in accordance with the absolute maximum rating system (iec 60134). all voltages are referenced to gnd. symbol parameter conditions min max unit v bat supply voltage on pin v bat no time limit - 0.3 +60 v operating range 6.5 60 v v cc supply voltage no time limit - 0.3 +5.5 v operating range 4.75 5.25 v v buf supply voltage on pin v buf no time limit - 0.3 +5.5 v operating range 4.75 5.25 v v io supply voltage on pin v io no time limit - 0.3 +5.5 v operating range 2.2 5.25 v v inh1 voltage on pin inh1 - 0.3 v bat + 0.3 v v inh2 voltage on pin inh2 - 0.3 v bat + 0.3 v v wake voltage on pin wake - 0.3 v bat + 0.3 v i o(wake) output current on pin wake pin gnd not connected - 15 - ma v bge voltage on pin bge no time limit - 0.3 +5.5 v v txen voltage on pin txen no time limit - 0.3 +5.5 v v txd voltage on pin txd no time limit - 0.3 +5.5 v v errn voltage on pin errn no time limit - 0.3 v io + 0.3 v v rxd voltage on pin rxd no time limit - 0.3 v io + 0.3 v v rxen voltage on pin rxen no time limit - 0.3 v io + 0.3 v v en voltage on pin en no time limit - 0.3 +5.5 v v stbn voltage on pin stbn no time limit - 0.3 +5.5 v v trxd0 voltage on pin trxd0 no time limit - 0.3 +5.5 v v trxd1 voltage on pin trxd1 no time limit - 0.3 +5.5 v v bp voltage on pin bp no time limit - 60 +60 v v bm voltage on pin bm no time limit - 60 +60 v v trt transient voltage on pins bp and bm [1] - 200 +200 v on pin v bat [2] - 200 +200 v on pin v bat [3] 6.5 60 v on pin v bat [4] -60 v t stg storage temperature - 55 +150 c t vj virtual junction temperature [5] - 40 +150 c v esd electrostatic discharge voltage hbm on pins bp and bm to ground [6] - 8.0 +8.0 kv hbm at any other pin [7] - 4.0 +4.0 kv mm on all pins [8] - 200 +200 v cdm on all pins [9] - 1000 +1000 v
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 28 of 50 nxp semiconductors tja1080a flexray transceiver [5] in accordance with iec 60747-1. an alternative de?nition of virtual junction temperature t vj is: t vj =t amb +p r th(j-a) , where r th(j-a) is a ?xed value to be used for the calculation of t vj . the rating for t vj limits the allowable combinations of power dissipation (p) and ambient temperature (t amb ). [6] hbm: c = 100 pf; r = 1.5 k w . [7] hbm: c = 100 pf; r = 1.5 k w . [8] mm: c = 200 pf; l = 0.75 m h; r = 10 w . [9] cdm: r = 1 w . 8. thermal characteristics 9. static characteristics table 12. thermal characteristics symbol parameter conditions typ unit r th(j-a) thermal resistance from junction to ambient in free air 126 k/w r th(j-s) thermal resistance from junction to substrate in free air - k/w table 13. static characteristics all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit pin v bat i bat supply current on pin v bat low power modes in node con?guration; no load on pins ihn1 and ihn2 --55 m a star-sleep mode - - 55 m a star-standby mode; no load on pins ihn1 and ihn2 - - 150 m a normal power modes - - 1 ma v uvd(vbat) undervoltage detection voltage on pin v bat 2.75 - 4.5 v pin v cc i cc supply current low power modes - 1 0 +10 m a normal mode; v bge = 0 v; v txen = v io ; receive-only mode; star-idle mode --15ma normal mode; v bge = v io ; v txen = 0 v; v buf open [2] --35ma normal mode; v bge =v io ; v txen = 0 v; r bus = w --15ma star-transmit mode - - 62 ma star-receive mode - - 42 ma v uvd(vcc) undervoltage detection voltage on pin v cc v bat > 5.5 v 2.75 - 4.5 v
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 29 of 50 nxp semiconductors tja1080a flexray transceiver pin v io i io supply current on pin v io low power modes - 1 +1 +10 m a normal and receive-only mode; v txd = v io - - 1000 m a v uvd(vio) undervoltage detection voltage on pin v io 1- 2v v uvr(vio) undervoltage recovery voltage on pin v io 1 - 2.2 v v uvhys(vio) undervoltage hysteresis voltage on pin v io v bat > 5.5 v 25 - 200 mv pin v buf i buf supply current on pin v buf low power modes in node con?guration - 1 0 +10 m a low power modes in star con?guration v buf = 0 v; v cc = 0 v - 40 - 20 +1 m a v buf = 5.25 v - 1 0 +15 m a normal mode; v bge = v io ; v txen = 0 v; v buf = v cc [2] --35ma star-transmit mode - - 62 ma star-receive mode - - 42 ma normal mode; v bge = 0 v; v txen = v io ; receive-only mode; star-idle mode --15ma v buf(on) on-state voltage on pin v buf v cc switch is switched on; normal mode; v bge = v io ; v txen =0v;v cc > maximum value of v uvd(vcc) v cc - 0.25 - v cc v v buf(off) off-state voltage on pin v buf v cc switch is switched off; low power modes in star con?guration; v cc < minimum value of v uvd(vcc) 4.5 - 5.25 v pin en v ih(en) high-level input voltage on pin en 0.7v io - 5.5 v v il(en) low-level input voltage on pin en - 0.3 - 0.3v io v i ih(en) high-level input current on pin en v en = 0.7v io 3- 11 m a i il(en) low-level input current on pin en v en = 0 v - 10 +1 m a table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 30 of 50 nxp semiconductors tja1080a flexray transceiver pin stbn v ih(stbn) high-level input voltage on pin stbn 0.7v io - 5.5 v v il(stbn) low-level input voltage on pin stbn - 0.3 - 0.3v io v i ih(stbn) high-level input current on pin stbn v stbn = 0.7v io 3- 11 m a i il(stbn) low-level input current on pin stbn v stbn = 0 v - 10 +1 m a pin txen v ih(txen) high-level input voltage on pin txen 0.7v io - 5.5 v v il(txen) low-level input voltage on pin txen - 0.3 - 0.3v io v i ih(txen) high-level input current on pin txen v txen = v io - 10 +1 m a i il(txen) low-level input current on pin txen v txen = 0.3v io - 15 - - 3 m a i l(txen) leakage current on pin txen v txen = 5.25 v; v io = 0 v - 10 +1 m a pin bge v ih(bge) high-level input voltage on pin bge 0.7v io - 5.5 v v il(bge) low-level input voltage on pin bge - 0.3 - 0.3v io v i ih(bge) high-level input current on pin bge v bge = 0.7v io 3- 11 m a i il(bge) low-level input current on pin bge v bge = 0 v - 10 +1 m a pin txd v ih(txd) high-level input voltage on pin txd normal power modes 0.7v io -v io + 0.3 v v il(txd) low-level input voltage on pin txd normal power modes - 0.3 - 0.3v io v i ih(txd) high-level input current on pin txd v txd = v io 70 300 650 m a i il(txd) low-level input current on pin txd normal power modes; v txd =0v - 50 +5 m a low power modes - 10 +1 m a i li(txd) input leakage current on pin txd v txd = 5.25 v; v io = 0 v - 10 +1 m a c i(txd) input capacitance on pin txd not tested; with respect to all other pins at ground; v txd = 100 mv; f=5mhz [3] - 5 10 pf table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 31 of 50 nxp semiconductors tja1080a flexray transceiver pin rxd i oh(rxd) high-level output current on pin rxd v rxd = v io - 0.4 v; v io =v cc - 20 - - 2ma i ol(rxd) low-level output current on pin rxd v rxd = 0.4 v 2 - 20 ma pin errn i oh(errn) high-level output current on pin errn node con?guration; v errn =v io - 0.4 v; v io =v cc - 1500 - 550 - 100 m a star con?guration; v errn =v io - 0.4 v; v io =v cc - 10 +1 m a i ol(errn) low-level output current on pin errn v errn = 0.4 v 300 700 1500 m a pin rxen i oh(rxen) high-level output current on pin rxen v rxen = v io - 0.4 v; v io =v cc - 4 - 1.5 - 0.5 ma i ol(rxen) low-level output current on pin rxen v rxen = 0.4 v 138ma pins trxd0 and trxd1 v ih(trxd0) high-level input voltage on pin trxd0 star-idle and star-transmit mode 0.7v buf -v buf + 0.3 v v il(trxd0) low-level input voltage on pin trxd0 star-idle and star-transmit mode - 0.3 - 0.3v buf v v ol(trxd0) low-level output voltage on pin trxd0 r pu = 200 w- 0.3 - +0.8 v v ih(trxd1) high-level input voltage on pin trxd1 star-idle and star-transmit mode 0.7v buf -v buf + 0.3 v v il(trxd1) low-level input voltage on pin trxd1 star-idle and star-transmit mode - 0.3 - 0.3v buf v v ol(trxd1) low-level output voltage on pin trxd1 r pu = 200 w- 0.3 - +0.8 v pins bp and bm v o(idle)(bp) idle output voltage on pin bp normal, receive-only, star-idle, star-transmit and star-receive mode; v txen =v io 0.4v buf 0.5v buf 0.6v buf v standby, go-to-sleep, sleep, star-standby and star-sleep mode - 0.1 0 +0.1 v table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 32 of 50 nxp semiconductors tja1080a flexray transceiver v o(idle)(bm) idle output voltage on pin bm normal, receive-only, star-idle, star-transmit and star-receive mode; v txen =v io 0.4v buf 0.5v buf 0.6v buf v standby, go-to-sleep, sleep, star-standby and star-sleep mode - 0.1 0 +0.1 v i o(idle)bp idle output current on pin bp - 60 v < | v bp | < +60 v - 7.5 - +7.5 ma i o(idle)bm idle output current on pin bm - 60 v < | v bm | < +60 v - 7.5 - +7.5 ma v o(idle)(dif) differential idle output voltage - 25 0 +25 mv v oh(dif) differential high-level output voltage 40 w < r bus < 55 w ; v cc =v buf = 5 v 600 800 1500 mv v ol(dif) differential low-level output voltage 40 w < r bus < 55 w ; v cc =v buf = 5 v - 1500 - 800 - 600 mv v ih(dif) differential high-level input voltage normal power modes; - 10 v < v bp < +15 v; - 10 v < v bm < +15 v 150 225 300 mv v il(dif) differential low-level input voltage normal power modes; - 10 v < v bp < +15 v; - 10 v < v bm < +15 v - 300 - 225 - 150 mv low power modes; - 10 v < v bp < +15 v; - 10 v < v bm < +15 v - 400 - 225 - 125 mv d v i(dif)(h-l) differential input voltage difference between high-level and low-level normal power modes; (v bp +v bm )/2=2.5v --10% | v i(dif)det(act) | activity detection differential input voltage (absolute value) normal power modes 150 225 300 mv | i o(sc)(bp) | short-circuit output current on pin bp (absolute value) v bp = 0 v, 60 v 10 20 35 ma | i o(sc)(bm) | short-circuit output current on pin bm (absolute value) v bm = 0 v, 60 v 10 20 35 ma r i(bp) input resistance on pin bp idle level; r bus = w 10 20 40 k w r i(bm) input resistance on pin bm idle level; r bus = w 10 20 40 k w r i(dif)(bp-bm) differential input resistance between pin bp and pin bm idle level; r bus = w 20 40 80 k w i li(bp) input leakage current on pin bp v bp =5v; v bat =v cc =v io =0 v - 10 0 +10 m a table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 33 of 50 nxp semiconductors tja1080a flexray transceiver i li(bm) input leakage current on pin bm v bm =5v; v bat =v cc =v io =0 v - 10 0 +10 m a v cm(bus)(data_0) data_0 bus common-mode voltage r bus = 45 w 0.4v buf 0.5v buf 0.6v buf v v cm(bus)(data_1) data_1 bus common-mode voltage r bus = 45 w 0.4v buf 0.5v buf 0.6v buf v d v cm(bus) bus common-mode voltage difference r bus = 45 w- 25 0 +25 mv c i(bp) input capacitance on pin bp not tested; with respect to all other pins at ground; v bp = 100 mv; f = 5 mhz [3] - 8 15 pf c i(bm) input capacitance on pin bm not tested; with respect to all other pins at ground; v bm = 100 mv; f = 5 mhz [3] - 8 15 pf c i(dif)(bp-bm) differential input capacitance between pin bp and pin bm not tested; with respect to all other pins at ground; v (bm-bp) = 100 mv; f = 5 mhz [3] - 25pf pin inh1 v oh(inh1) high-level output voltage on pin inh1 i inh1 = - 0.2 ma v bat - 0.8 - v bat v i l(inh1) leakage current on pin inh1 sleep mode - 50 +5 m a i ol(inh1) low-level output current on pin inh1 v inh1 = 0 v - 15--ma pin inh2 v oh(inh2) high-level output voltage on pin inh2 i inh2 = - 0.2 ma v bat - 0.8 - v bat v i l(inh2) leakage current on pin inh2 sleep mode - 50 +5 m a i ol(inh2) low-level output current on pin inh2 v inh2 = 0 v - 15--ma pin wake v th(det)(wake) detection threshold voltage on pin wake low power mode 2.5 - 4.5 v i il(wake) low-level input current on pin wake v wake = 2.4 v for t>t wake(wake) 3- 11 m a i ih(wake) high-level input current on pin wake v wake = 4.6 v for t>t wake(wake) - 11 - - 3 m a temperature protection t j(warn)(medium) medium warning junction temperature v bat > 5.5 v 155 165 175 c t j(dis)(high) high disable junction temperature v bat > 5.5 v 180 190 200 c table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 34 of 50 nxp semiconductors tja1080a flexray transceiver [1] all parameters are guaranteed over the virtual junction temperature range by design, but only 100 % are tested at 125 c for dies on wafer level (pre-testing) and above this for cased products 100 % are tested at t amb = - 40 c and +25 c (?nal testing) unless otherwise speci?ed. both pre-testing and ?nal testing use correlated test conditions to cover the speci?ed temperature and power supply v oltage range. for bare dies all parameters are only guaranteed with the backside of the bare die connected to ground. [2] current ?ows from v cc to v buf . this means that the maximum sum current i cc + i buf is 35 ma. [3] these values are based on measurements taken on several samples (less than 10 pieces). these measurements have taken place i n the laboratory and have been done at t amb = 25 c and t amb = 125 c. no characterization has been done for these parameters. no industrial test will be performed on production products. power-on reset v th(det)por power-on reset detection threshold voltage 3.0 - 3.4 v v th(rec)por power-on reset recovery threshold voltage 3.1 - 3.5 v v hys(por) power-on reset hysteresis voltage 100 - 200 mv table 13. static characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic. [1] symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 35 of 50 nxp semiconductors tja1080a flexray transceiver 10. dynamic characteristics table 14. dynamic characteristics all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic [1] . symbol parameter conditions min typ max unit pins bp and bm t d(txd-bus) delay time from txd to bus normal or star-transmit mode [2] data_0 - - 50 ns data_1 - - 50 ns d t d(txd-bus) delay time difference from txd to bus normal or star-transmit mode; between data_0 and data_1 [2] --4ns t d(trxd-bus) delay time from trxd to bus star-transmit mode [3] data_0 - - 50 ns data_1 - - 50 ns d t d(trxd-bus) delay time difference from trxd to bus star-transmit mode; between data_0 and data_1 [3] [4] --5ns t d(bus-rxd) delay time from bus to rxd normal or star-transmit mode; c rxd = 15 pf; see figure 13 data_0 - - 50 ns data_1 - - 50 ns d t d(bus-rxd) delay time difference from bus to rxd normal or star-transmit mode; c rxd = 15 pf; between data_0 and data_1; see figure 13 --5ns t d(bus-trxd) delay time from bus to trxd star-receive mode; see figure 13 data_0 - - 50 ns data_1 - - 50 ns d t d(bus-trxd) delay time difference from bus to trxd star-receive mode; between data_0 and data_1; see figure 13 [4] --5ns t d(txen-busidle) delay time from txen to bus idle normal mode - - 100 ns t d(txen-busact) delay time from txen to bus active normal mode - - 75 ns t d(bge-busidle) delay time from bge to bus idle normal mode - - 100 ns t d(bge-busact) delay time from bge to bus active normal mode - - 75 ns t d(bus)(idle-act) bus delay time from idle to active normal mode - - 30 ns t d(bus)(act-idle) bus delay time from active to idle normal mode - - 30 ns t r(dif)(bus) bus differential rise time 10 % to 90 %; r l = 45 w ; c l = 100 pf 5 1225ns
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 36 of 50 nxp semiconductors tja1080a flexray transceiver t f(dif)(bus) bus differential fall time 90 % to 10 %; r l = 45 w ; c l = 100 pf 5 1225ns wake symbol detection t det(wake)data_0 data_0 wake-up detection time standby, sleep, star-standby or star-sleep mode; - 10 v < v bp < +15 v; - 10 v < v bm < +15 v 1- 4 m s t det(wake)idle idle wake-up detection time 1 - 4 m s t det(wake)tot total wake-up detection time 50 - 115 m s undervoltage t det(uv)(vcc) undervoltage detection time on pin v cc 100 - 670 ms t rec(uv)(vcc) undervoltage recovery time on pin v cc 1 - 5.2 ms t det(uv)(vio) undervoltage detection time on pin v io 100 - 670 ms t to(uv)(vcc) undervoltage time-out time on pin v cc for entering standby mode star con?guration; wake ?ag is set 432 - 900 m s t det(uv)(vbat) undervoltage detection time on pin v bat --1ms activity detection t det(act)(txen) activity detection time on pin txen star con?guration 100 - 200 ns t det(act)(trxd) activity detection time on pin trxd star con?guration 100 - 200 ns t det(act)(bus) activity detection time on bus pins v dif : 0 mv ? 400 mv 100 - 250 ns t det(idle)(txen) idle detection time on pin txen star con?guration 100 - 200 ns t det(idle)(trxd) idle detection time on pin trxd star con?guration 50 - 100 ns t det(idle)(bus) idle detection time on bus pins v dif : 400 mv ? 0 mv 100 - 250 ns star modes t to(idle-sleep) idle to sleep time-out time 640 - 2660 ms t to(tx-locked) transmit to locked time-out time 2600 - 10400 m s t to(rx-locked) receive to locked time-out time 2600 - 10400 m s t to(locked-sleep) locked to sleep time-out time 64 - 333 ms t to(locked-idle) locked to idle time-out time 1.4 - 5.1 m s node modes t d(stbn-rxd) stbn to rxd delay time stbn high to rxd high; wake ?ag set --2 m s t d(stbn-inh2) stbn to inh2 delay time stbn low to inh2 ?oating; normal mode --10 m s t h(gotosleep) go-to-sleep hold time 20 35 50 m s status register table 14. dynamic characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic [1] . symbol parameter conditions min typ max unit
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 37 of 50 nxp semiconductors tja1080a flexray transceiver [1] all parameters are guaranteed over the virtual junction temperature range by design, but only 100 % are tested at 125 c for dies on wafer level (pre-testing) and above this for cased products 100 % are tested at t amb = - 40 c and +25 c (?nal testing) unless otherwise speci?ed. both pre-testing and ?nal testing use correlated test conditions to cover the speci?ed temperature and power supply v oltage range. for bare dies all parameters are only guaranteed with the backside of the bare die connected to ground. [2] rise and fall time (10 % to 90 %) of t r(txd) and t f(txd) = 5 ns. [3] rise and fall time (10 % to 90 %) of t r(trxd) and t f(trxd) = 5 ns. [4] the worst case asymmetry from one branch to another is the sum of the delay difference from trxd0 and trxd1 to data_0 and data_1 plus the delay difference from data_0 and data_1 to trxd0 and trxd1. t det(en) detection time on pin en for mode control 20 - 80 m s t en time period on pin en for reading status bits 4 - 20 m s t d(en-errn) delay time from en to errn for reading status bits - - 2 m s wake t wake(wake) wake-up time on pin wake low power mode; falling edge on pin wake; 6.5 v < v bat < 27 v 5 25 100 m s low power mode; falling edge on pin wake; 27 v < v bat < 60 v 25 75 175 m s miscellaneous t detcl(txen_bge) txen_bge clamp detection time 2600 - 10400 m s t det(col)(trxd) trxd collision detection time trxd0 and trxd1 20 - - ns table 14. dynamic characteristics continued all parameters are guaranteed for v bat =6.5vto60v;v cc = 4.75 v to 5.25 v; v buf = 4.75 v to 5.25 v; v io = 2.2 v to 5.25 v; t vj = - 40 c to +150 c; r bus = 45 w ; r trxd = 200 w unless otherwise speci?ed. all voltages are de?ned with respect to ground; positive currents ?ow into the ic [1] . symbol parameter conditions min typ max unit
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 38 of 50 nxp semiconductors tja1080a flexray transceiver fig 12. detailed timing diagram in node con?guration 001aae445 10 % 90 % t d(bus-rxd) t d(bus-rxd) t det(idle)(bus) t det(act)(bus) t det(idle)(bus) - 150 mv 0.7v io 0.3v io 0.7v io 0.3v io 0.7v io 0.3v io +300 mv - 300 mv 0 v bp and bm bge txen txd rxen rxd 0.7v io 0.3v io 0.7v io 0.3v io - 300 mv - 150 mv - 300 mv t det(act)(bus) t r(dif)(bus) t f(dif)(bus) t d(txd-bus) t d(txd-bus) t d(txen-busidle) t d(bge-busidle) t d(txen-busact) t d(bge-busact)
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 39 of 50 nxp semiconductors tja1080a flexray transceiver v dif is the receiver test signal. fig 13. receiver test signal 001aag897 22.5 ns 400 v dif (mv) rxd 300 - 300 - 400 t d(bus-rxd) 47.5 ns 70 ns 22.5 ns t d(bus-rxd) 22.5 ns 400 v dif (mv) rxd 300 - 300 - 400 t d(bus-rxd) 47.5 ns 70 ns 22.5 ns t d(bus-rxd)
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 40 of 50 nxp semiconductors tja1080a flexray transceiver 11. test information fig 14. test circuit for dynamic characteristics the waveforms of the applied transients are in accordance with iso 7637, test pulses 1, 2, 3a, 3b, 4 and 5. test conditions: normal mode: bus idle normal mode: bus active; txd at 5 mhz and txen at 1 khz fig 15. test circuit for automotive transients 001aag898 22 m f 15 pf tja1080a 10 m f +12 v v cc v io v bat r l c l v buf bp 18 41914 20 17 7 bm rxd +5 v 100 nf 001aag899 12 v or 42 v 1 nf 1 nf iso 7637 10 m f tja1080a 10 m f v cc v io v bat r l c l v buf bp 18 41914 20 17 bm +5 v 100 nf g iso 7637 g
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 41 of 50 nxp semiconductors tja1080a flexray transceiver 12. package outline fig 16. package outline sot339-1 (ssop20) unit a 1 a 2 a 3 b p cd (1) e (1) eh e ll p q (1) z y w v q references outline version european projection issue date iec jedec jeita mm 0.21 0.05 1.80 1.65 0.38 0.25 0.20 0.09 7.4 7.0 5.4 5.2 0.65 7.9 7.6 0.9 0.7 0.9 0.5 8 0 o o 0.13 1.25 0.2 0.1 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.2 mm maximum per side are not included. 1.03 0.63 sot339-1 mo-150 99-12-27 03-02-19 x w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 110 20 11 y 0.25 pin 1 index 0 2.5 5 mm scale ssop20: plastic shrink small outline package; 20 leads; body width 5.3 mm sot339-1 a max. 2
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 42 of 50 nxp semiconductors tja1080a flexray transceiver 13. soldering of smd packages this text provides a very brief insight into a complex technology. a more in-depth account of soldering ics can be found in application note an10365 surface mount re?ow soldering description . 13.1 introduction to soldering soldering is one of the most common methods through which packages are attached to printed circuit boards (pcbs), to form electrical circuits. the soldered joint provides both the mechanical and the electrical connection. there is no single soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mount devices (smds) are mixed on one printed wiring board; however, it is not suitable for ?ne pitch smds. re?ow soldering is ideal for the small pitches and high densities that come with increased miniaturization. 13.2 wave and re?ow soldering wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. the wave soldering process is suitable for the following: ? through-hole components ? leaded or leadless smds, which are glued to the surface of the printed circuit board not all smds can be wave soldered. packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. also, leaded smds with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased probability of bridging. the re?ow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature pro?le. leaded packages, packages with solder balls, and leadless packages are all re?ow solderable. key characteristics in both wave and re?ow soldering are: ? board speci?cations, including the board ?nish, solder masks and vias ? package footprints, including solder thieves and orientation ? the moisture sensitivity level of the packages ? package placement ? inspection and repair ? lead-free soldering versus snpb soldering 13.3 wave soldering key characteristics in wave soldering are: ? process issues, such as application of adhesive and ?ux, clinching of leads, board transport, the solder wave parameters, and the time during which components are exposed to the wave ? solder bath speci?cations, including temperature and impurities
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 43 of 50 nxp semiconductors tja1080a flexray transceiver 13.4 re?ow soldering key characteristics in re?ow soldering are: ? lead-free versus snpb soldering; note that a lead-free re?ow process usually leads to higher minimum peak temperatures (see figure 17 ) than a snpb process, thus reducing the process window ? solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board ? re?ow temperature pro?le; this pro?le includes preheat, re?ow (in which the board is heated to the peak temperature) and cooling down. it is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). in addition, the peak temperature must be low enough that the packages and/or boards are not damaged. the peak temperature of the package depends on package thickness and volume and is classi?ed in accordance with t ab le 15 and 16 moisture sensitivity precautions, as indicated on the packing, must be respected at all times. studies have shown that small packages reach higher temperatures during re?ow soldering, see figure 17 . table 15. snpb eutectic process (from j-std-020c) package thickness (mm) package re?ow temperature ( c) volume (mm 3 ) < 350 3 350 < 2.5 235 220 3 2.5 220 220 table 16. lead-free process (from j-std-020c) package thickness (mm) package re?ow temperature ( c) volume (mm 3 ) < 350 350 to 2000 > 2000 < 1.6 260 260 260 1.6 to 2.5 260 250 245 > 2.5 250 245 245
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 44 of 50 nxp semiconductors tja1080a flexray transceiver for further information on temperature pro?les, refer to application note an10365 surface mount re?ow soldering description . 14. appendix 14.1 differences between tja1080 and tja1080a 14.1.1 start-up msl: moisture sensitivity level fig 17. temperature pro?les for large and small components 001aac844 temperature time minimum peak temperature = minimum soldering temperature maximum peak temperature = msl limit, damage level peak temperature table 17. start-up differences between tja1080 and tja1080a tja1080 tja1080a at power-up v bat should be supplied ?rst. when v bat reaches 6.5 v, v cc and v io may be switched on with a delay of at least 60 m s with respect to v bat . the tja1080a initialization is independent of the way the voltage supplies v bat , v cc and v io ramp up. a dedicated power-up sequence is not necessary.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 45 of 50 nxp semiconductors tja1080a flexray transceiver 14.1.2 bus error detection 14.1.3 wake-up signalling via rxd pin 14.1.4 asymmetric delay and minimum bit time 14.1.5 transmitter symmetry the transmitter symmetry has been improved with respect to the tja1080. with this improvement, the tja1080a features less eme than the tja1080. 14.1.6 impact of input signals on pin en table 18. bus error detection differences between tja1080 and tja1080a tja1080 tja1080a the tja1080 expects that a data frame begins with a bit value other than the last bit of the previous data frame. this is the case for a valid data frame which begins with the data_0 period of the transmission start sequence (tss) and ends with the data_1 bit of the frame end sequence (fes). any violation of this frame format will be detected by the tja1080. consequently, when transmitting a wake-up pattern, a bus error will be signalled. this error indication should be ignored and the status register should be cleared by reading the vector. the transmission of any valid communication element, including a wake-up pattern, does not lead to bus error indication. table 19. wake-up signalling via rxd differences between tja1080 and tja1080a tja1080 tja1080a in case of an undervoltage condition at v cc , pin rxd might go to low level. for a correct wake-up recognition during a v cc undervoltage condition, pin rxen can be used. in case of an undervoltage condition at v cc , pin rxd can be used for correct wake-up signalling. table 20. minimum bit time differences between tja1080 and tja1080a tja1080 tja1080a the tja1080 guarantees minimum bit times of 80 ns for a receiver test signal of 600 mv (see figure 13 ) and asymmetric delay time of 5ns (see t ab le 14 ). the tja1080a guarantees minimum bit times of 70 ns for a receiver test signal of 400 mv (see figure 13 ) and asymmetric delay time of less than 5 ns (see t ab le 14 ). table 21. input signals on pin en: differences between tja1080 and tja1080a tja1080 tja1080a certain pulses on pin en may lead to a hang-up of the digital input of pin en. this issue has been resolved in the tja1080a
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 46 of 50 nxp semiconductors tja1080a flexray transceiver 15. abbreviations 16. references [1] epl flexray communications system electrical physical layer speci?cation version 2.1 rev. a, flexray consortium, dec. 2005 [2] ps54 product speci?cation: tja1054; fault-tolerant can transceiver, www.nxp.com [3] ps41 product speci?cation: tja1041; high speed can transceiver, www.nxp.com [4] ds80 product data sheet: tja1080; flexray transceiver, www.nxp.com 17. revision history table 22. abbreviations abbreviation description bss byte start sequence can controller area network cdm charged device model emc electromagnetic compatibility eme electromagnetic emission emi electromagnetic immunity esd electrostatic discharge fes frame end sequence hbm human body model mm machine model pwon power-on tss transmission start sequence table 23. revision history document id release date data sheet status change notice supersedes tja1080a_2 20080826 preliminary data sheet - tja1080a_1 modi?cations: ? t ab le 1 : type number updated ? t ab le 4 : note 1 revised ? section 6.6 updated ? section 6.7 updated ? t ab le 11 : values for parameters v bge , v txen and v txd amended; note 9 revised ? t ab le 13 : values for parameters i bat , i cc , i io , i buf , i ih(txen) , i il(txen) ,v ih(bge) , i o(idle)bp , i o(idle)bm , | i o(sc)(bp) | and | i o(sc)(bm) | amended ? t ab le 14 : values for parameters t d(txen-busidle) , t d(txen-busact) , t d(bge-busidle) , t d(bge-busact) , t d(bus)(idle-act) , t d(bus)(act-idle) , t d(stbn-inh2) and t det(col)(trxd) amended ? section 14.1.6 added tja1080a_1 20071029 objective data sheet - -
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 47 of 50 nxp semiconductors tja1080a flexray transceiver 18. legal information 18.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term short data sheet is explained in section de?nitions. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple dev ices. the latest product status information is available on the internet at url http://www .nxp .com . 18.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. short data sheet a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request via the local nxp semiconductors sales of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 18.3 disclaimers general information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. right to make changes nxp semiconductors reserves the right to make changes to information published in this document, including without limitation speci?cations and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use nxp semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customers own risk. applications applications that are described herein for any of these products are for illustrative purposes only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned in the absolute maximum ratings system of iec 60134) may cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the characteristics sections of this document is not implied. exposure to limiting values for extended periods may affect device reliability. terms and conditions of sale nxp semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www .nxp .com/pro? le/ter ms , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by nxp semiconductors. in case of any inconsistency or con?ict between information in this document and such terms and conditions, the latter will prevail. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. suitability for use in automotive applications only this nxp semiconductors product has been developed for use in automotive applications only. the product is not designed, authorized or warranted to be suitable for any other use, including medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customers own risk. 18.4 licenses 18.5 trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation. purchase of nxp ics with flexray functionality flexray license required. this product has been developed within the framework of the flexray consortium. flexray consortium members are willing to grant licenses under their essential flexray intellectual property rights to end users of flexray-enabled products upon request of an end user. the sale by nxp semiconductors of a flexray-enabled product will not be construed as the granting of such a license. each end user will have to apply to the flexray consortium administration to obtain such a license or to apply for membership. the flexray consortium can be contacted at request@?exray.com.
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 48 of 50 nxp semiconductors tja1080a flexray transceiver 19. contact information for more information, please visit: http://www .nxp.com for sales of?ce addresses, please send an email to: salesad dresses@nxp.com
tja1080a_2 ? nxp b.v. 2008. all rights reserved. preliminary data sheet rev. 02 26 august 2008 49 of 50 continued >> nxp semiconductors tja1080a flexray transceiver 20. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.1 optimized for time triggered communication systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.2 low power management . . . . . . . . . . . . . . . . . 2 2.3 diagnosis (detection and signalling) . . . . . . . . . 2 2.4 protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.5 functional classes according to flexray electrical physical layer speci?cation (see ref . 1 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 ordering information . . . . . . . . . . . . . . . . . . . . . 3 4 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 pinning information . . . . . . . . . . . . . . . . . . . . . . 5 5.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 6 functional description . . . . . . . . . . . . . . . . . . . 6 6.1 operating con?gurations. . . . . . . . . . . . . . . . . . 6 6.1.1 node con?guration . . . . . . . . . . . . . . . . . . . . . . 6 6.1.2 star con?guration . . . . . . . . . . . . . . . . . . . . . . . 6 6.1.3 bus activity and idle detection . . . . . . . . . . . . . 7 6.2 operating modes in node con?guration . . . . . . 7 6.2.1 normal mode . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.2.2 receive-only mode . . . . . . . . . . . . . . . . . . . . . 14 6.2.3 standby mode. . . . . . . . . . . . . . . . . . . . . . . . . 14 6.2.4 go-to-sleep mode . . . . . . . . . . . . . . . . . . . . . . 14 6.2.5 sleep mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.3 operating modes in star con?guration . . . . . . 15 6.3.1 star-idle mode . . . . . . . . . . . . . . . . . . . . . . . . 17 6.3.2 star-transmit mode . . . . . . . . . . . . . . . . . . . . . 18 6.3.3 star-receive mode . . . . . . . . . . . . . . . . . . . . . 18 6.3.4 star-standby mode . . . . . . . . . . . . . . . . . . . . . 18 6.3.5 star-sleep mode . . . . . . . . . . . . . . . . . . . . . . . 19 6.3.6 star-locked mode . . . . . . . . . . . . . . . . . . . . . . 19 6.4 start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.4.1 node con?guration . . . . . . . . . . . . . . . . . . . . . 19 6.4.2 star con?guration . . . . . . . . . . . . . . . . . . . . . . 19 6.5 wake-up mechanism . . . . . . . . . . . . . . . . . . . 20 6.5.1 node con?guration . . . . . . . . . . . . . . . . . . . . . 20 6.5.2 star con?guration . . . . . . . . . . . . . . . . . . . . . . 20 6.5.3 remote wake-up. . . . . . . . . . . . . . . . . . . . . . . 20 6.5.3.1 bus wake-up via wake-up pattern. . . . . . . . . . 20 6.5.3.2 bus wake-up via dedicated flexray data frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.5.4 local wake-up via pin wake . . . . . . . . . . . . . 21 6.6 fail silent behavior . . . . . . . . . . . . . . . . . . . . . 22 6.6.1 v bat undervoltage. . . . . . . . . . . . . . . . . . . . . . 22 6.6.2 v cc undervoltage . . . . . . . . . . . . . . . . . . . . . . 22 6.6.3 v io undervoltage . . . . . . . . . . . . . . . . . . . . . . 22 6.7 flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.7.1 local wake-up source ?ag . . . . . . . . . . . . . . . 23 6.7.2 remote wake-up source ?ag . . . . . . . . . . . . . 23 6.7.3 wake ?ag . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.7.4 power-on ?ag . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.7.5 node con?guration ?ag . . . . . . . . . . . . . . . . . 23 6.7.6 temperature medium ?ag . . . . . . . . . . . . . . . 23 6.7.7 temperature high ?ag . . . . . . . . . . . . . . . . . . 24 6.7.8 txen_bge clamped ?ag. . . . . . . . . . . . . . . . 24 6.7.9 bus error ?ag . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.7.10 uv vbat ?ag. . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.7.11 uv vcc ?ag . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.7.12 uv vio ?ag. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.7.13 error ?ag . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6.8 trxd collision . . . . . . . . . . . . . . . . . . . . . . . . 25 6.9 status register . . . . . . . . . . . . . . . . . . . . . . . . 25 7 limiting values . . . . . . . . . . . . . . . . . . . . . . . . 27 8 thermal characteristics . . . . . . . . . . . . . . . . . 28 9 static characteristics . . . . . . . . . . . . . . . . . . . 28 10 dynamic characteristics . . . . . . . . . . . . . . . . . 35 11 test information. . . . . . . . . . . . . . . . . . . . . . . . 40 12 package outline . . . . . . . . . . . . . . . . . . . . . . . . 41 13 soldering of smd packages . . . . . . . . . . . . . . 42 13.1 introduction to soldering. . . . . . . . . . . . . . . . . 42 13.2 wave and re?ow soldering . . . . . . . . . . . . . . . 42 13.3 wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 42 13.4 re?ow soldering. . . . . . . . . . . . . . . . . . . . . . . 43 14 appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 14.1 differences between tja1080 and tja1080a . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 14.1.1 start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 14.1.2 bus error detection. . . . . . . . . . . . . . . . . . . . . 45 14.1.3 wake-up signalling via rxd pin . . . . . . . . . . . 45 14.1.4 asymmetric delay and minimum bit time . . . . 45 14.1.5 transmitter symmetry. . . . . . . . . . . . . . . . . . . 45 14.1.6 impact of input signals on pin en . . . . . . . . . 45 15 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 46 16 references . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 17 revision history . . . . . . . . . . . . . . . . . . . . . . . 46 18 legal information . . . . . . . . . . . . . . . . . . . . . . 47 18.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 47 18.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 18.3 disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 47 18.4 licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 18.5 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 47
nxp semiconductors tja1080a flexray transceiver ? nxp b.v. 2008. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com date of release: 26 august 2008 document identifier: tja1080a_2 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 19 contact information. . . . . . . . . . . . . . . . . . . . . 48 20 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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