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features description/ordering information sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 inputs/outputs can tolerate up to 4.6 v, which allows mixed-voltage-mode data member of the texas instruments widebus+? communications family i off supports partial-power-down mode doc? circuitry dynamically changes output operation impedance, resulting in noise reduction without speed degradation fully configurable dual-rail design allows each port to operate over full 1.4-v to 3.6-v dynamic drive capability is equivalent to power-supply range standard outputs with i oh and i ol of bus hold on data inputs eliminates the need ? 24 ma at 3-v v cc for external pullup/pulldown resistors ? 15 ma at 2.3-v v cc latch-up performance exceeds 100 ma per ? 9 ma at 1.65-v v cc jesd 78, class ii ? 6 ma at 1.4-v v cc esd protection exceeds jesd 22 control inputs v ih /v il levels are referenced ? 2000-v human-body model (a114-a) to v ccb voltage ? 200-v machine model (a115-a) if either v cc input is at gnd, both ports are in ? 1000-v charged-device model (c101) the high-impedance state this 32-bit noninverting bus transceiver uses two separate configurable power-supply rails. the a port is designed to track v cca . v cca accepts any supply voltage from 1.4 v to 3.6 v. the b port is designed to track v ccb . v ccb accepts any supply voltage from 1.4 v to 3.6 v. this allows for universal low-voltage bidirectional translation between any of the 1.5-v, 1.8-v, 2.5-v, and 3.3-v voltage nodes. the sn74avcbh324245 is designed for asynchronous communication between data buses. the device transmits data from the a bus to the b bus or from the b bus to the a bus, depending on the logic level at the direction-control (dir) input. the output-enable ( oe) input is used to disable the outputs, so the buses effectively are isolated. the sn74avcbh324245 is designed so that the control pins (1dir, 2dir, 1 oe, and 2 oe) are supplied by v ccb . active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. to ensure the high-impedance state during power up or power down, oe should be tied to v ccb through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. this device is fully specified for partial-power-down applications using i off . the i off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. if either v cc input is at gnd, both ports are in the high-impedance state. ordering information t a package (1) orderable part number top-side marking lfbga ? gke tape and reel sn74avcbh324245kr ?40c to 85c wn4245 lfbga ? zke tape and reel 74AVCBH324245ZKER (1) package drawings, standard packing quantities, thermal data, symbolization, and pcb design guidelines are available at www.ti.com/sc/package. please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. widebus+, doc are trademarks of texas instruments. production data information is current as of publication date. copyright ? 2004?2005, texas instruments incorporated products conform to specifications per the terms of the texas instruments standard warranty. production processing does not necessarily include testing of all parameters. www .ti.com
sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 terminal assignments 1 2 3 4 5 6 a 1b2 1b1 1dir 1 oe 1a1 1a2 b 1b4 1b3 gnd gnd 1a3 1a4 c 1b6 1b5 v ccb v cca 1a5 1a6 d 1b8 1b7 gnd gnd 1a7 1a8 e 2b2 2b1 gnd gnd 2a1 2a2 f 2b4 2b3 v ccb v cca 2a3 2a4 g 2b6 2b5 gnd gnd 2a5 2a6 h 2b7 2b8 2dir 2 oe 2a8 2a7 j 3b2 3b1 3dir 3 oe 3a1 3a2 k 3b4 3b3 gnd gnd 3a3 3a4 l 3b6 3b5 v ccb v cca 3a5 3a6 m 3b8 3b7 gnd gnd 3a7 3a8 n 4b2 4b1 gnd gnd 4a1 4a2 p 4b4 4b3 v ccb v cca 4a3 4a4 r 4b6 4b5 gnd gnd 4a5 4a6 t 4b7 4b8 4dir 4 oe 4a8 4a7 2 www .ti.com gke p ackage (t op view) j h g f e d c b a 2 1 3 4 6 5 p n m l k t r
sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 function table (each 8-bit section) inputs operation oe dir l l b data to a bus l h a data to b bus h x isolation logic diagram (positive logic) 3 www .ti.com t o seven other channels 1dir 1a1 1b1 1oe t o seven other channels 2dir 2a1 2b1 2oe a3a5 h3e5 a4a2 h4 e2 t o seven other channels 3dir 3a1 3b1 3oe t o seven other channels 4dir 4a1 4b1 4oe j3j5 t3n5 j4j2 t4 n2
absolute maximum ratings (1) sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 over operating free-air temperature range (unless otherwise noted) min max unit v cca supply voltage range ?0.5 4.6 v v ccb i/o port (a port) ?0.5 4.6 v i input voltage range (2) i/o port (b port) ?0.5 4.6 v control inputs ?0.5 4.6 a port ?0.5 4.6 voltage range applied to any output in the high-impedance or v o v power-off state (2) b port ?0.5 4.6 a port ?0.5 v cca + 0.5 v o voltage range applied to any output in the high or low state (2) (3) v b port ?0.5 v ccb + 0.5 i ik input clamp current v i < 0 ?50 ma i ok output clamp current v o < 0 ?50 ma i o continuous output current 50 ma continuous current through each v cca , v ccb , or gnd 100 ma q ja package thermal impedance (4) gke/zke package 40 c/w t stg storage temperature range ?65 150 c (1) stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) the input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. (3) the output positive-voltage rating may be exceeded up to 4.6 v maximum if the output current rating is observed. (4) the package thermal impedance is calculated in accordance with jesd 51-7. 4 www .ti.com
recommended operating conditions (1) (2) (3) sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 v cci v cco min max unit v cca supply voltage 1.4 3.6 v v ccb supply voltage 1.4 3.6 v 1.4 v to 1.95 v v cci 0.65 3.6 v ih high-level input voltage data inputs 1.95 v to 2.7 v 1.7 3.6 v 2.7 v to 3.6 v 2 3.6 1.4 v to 1.95 v 0 v cci 0.35 v il low-level input voltage data inputs 1.95 v to 2.7 v 0 0.7 v 2.7 v to 3.6 v 0 0.8 1.4 v to 1.95 v v ccb 0.65 v ccb control inputs v ih high-level input voltage 1.95 v to 2.7 v 1.7 v ccb v (referenced to v ccb ) 2.7 v to 3.6 v 2 v ccb 1.4 v to 1.95 v 0 v ccb 0.35 control inputs v il low-level input voltage 1.95 v to 2.7 v 0 0.7 v (referenced to v ccb ) 2.7 v to 3.6 v 0 0.8 v o output voltage 0 v cco v 1.4 v to 1.6 v ?2 1.65 v to 1.95 v ?4 i oh high-level output current ma 2.3 v to 2.7 v ?8 3 v to 3.6 v ?12 1.4 v to 1.6 v 2 1.65 v to 1.95 v 4 i ol low-level output current ma 2.3 v to 2.7 v 8 3 v to 3.6 v 12 d t/ d v input transition rise or fall rate 5 ns/v t a operating free-air temperature ?40 85 c (1) v cci is the v cc associated with the data input port. (2) v cco is the v cc associated with the output port. (3) all unused data inputs of the device must be held at v cci or gnd to ensure proper device operation. refer to the ti application report, implications of slow or floating cmos inputs, literature number scba004. 5 www .ti.com
electrical characteristics (1) sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 over recommended operating free-air temperature range (unless otherwise noted) parameter test conditions v cca v ccb min typ (2) max unit i oh = ?100 m a, v i = v ih 1.4 v to 3.6 v 1.4 v to 3.6 v v cco ? 0.2 i oh = ?2 ma, v i = v ih 1.4 v 1.4 v 1.05 v oh i oh = ?4 ma, v i = v ih 1.65 v 1.65 v 1.2 v i oh = ?8 ma, v i = v ih 2.3 v 2.3 v 1.75 i oh = ?12 ma, v i = v ih 3 v 3 v 2.3 i oh = 100 m a, v i = v il 1.4 v to 3.6 v 1.4 v to 3.6 v 0.2 i oh = 2 ma, v i = v il 1.4 v 1.4 v 0.35 v ol i oh = 4 ma, v i = v il 1.65 v 1.65 v 0.45 v i oh = 8 ma, v i = v il 2.3 v 2.3 v 0.55 i oh = 12 ma, v i = v il 3 v 3 v 0.7 i ohd = ?6 ma, v i = v ih 1.4 v 1.4 v 1.05 i ohd = ?9 ma, v i = v ih 1.65 v 1.65 v 1.2 v oh v i ohd = ?15 ma, v i = v ih 2.3 v 2.3 v 1.75 i ohd = ?24 ma, v i = v ih 3 v 3 v 2.3 i ohd = 6 ma, v i = v il 1.4 v 1.4 v 0.35 i ohd = 9 ma, v i = v il 1.65 v 1.65 v 0.45 v ol v i ohd = 15 ma, v i = v il 2.3 v 2.3 v 0.55 i ohd = 24 ma, v i = v il 3 v 3 v 0.7 i i control inputs v i = v ccb or gnd 1.4 v to 3.6 v 3.6 v 2.5 m a v i = 0.49 v 1.4 v 1.4 v 11 v i = 0.57 v 1.65 v 1.65 v 25 i bhl (3) m a v i = 0.7 v 2.3 v 2.3 v 45 v i = 0.8 v 3 v 3 v 75 v i = 0.49 v 1.4 v 1.4 v ?11 v i = 1.07 v 1.65 v 1.65 v ?25 i bhh (4) m a v i = 1.7 v 2.3 v 2.3 v ?45 v i = 2 v 3 v 3 v ?75 1.6 v 1.6 v 100 1.95 v 1.95 v 200 i bhlo (5) v i = 0 to v cc m a 2.7 v 2.7 v 300 3.6 v 3.6 v 525 1.6 v 1.6 v ?100 1.95 v 1.95 v ?200 i bhho (6) v i = 0 to v cc m a 2.7 v 2.7 v ?300 3.6 v 3.6 v ?525 (1) v cco is the v cc associated with the output port. (2) all typical values are at t a = 25c. (3) the bus-hold circuit can sink at least the minimum low sustaining current at v il max. i bhl should be measured after lowering v in to gnd and then raising it to v il max. (4) the bus-hold circuit can source at least the minimum high sustaining current at v ih min. i bhh should be measured after raising v in to v cc and then lowering it to v ih min. (5) an external driver must source at least i bhlo to switch this node from low to high. (6) an external driver must sink at least i bhho to switch this node from high to low. 6 www .ti.com
electrical characteristics (1) (2) (continued) switching characteristics switching characteristics sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 over recommended operating free-air temperature range (unless otherwise noted) parameter test conditions v cca v ccb min typ (3) max unit a port 0 v 0 to 3.6 v 10 i off v i or v o = 0 to 3.6 v m a b port 0 to 3.6 v 0 v 10 a or b port oe = v ih 3.6 v 3.6 v 12.5 v o = v cco or gnd, i oz (4) b port 0 v 3.6 v 12.5 m a oe = don't v i = v cci or gnd care a port 3.6 v 0 v 12.5 1.6 v 1.6 v 40 1.95 v 1.95 v 40 2.7 v 2.7 v 60 i cca v i = v cci or gnd, i o = 0 m a 0 v 3.6 v ?80 3.6 v 0 v 80 3.6 v 3.6 v 80 1.6 v 1.6 v 40 1.95 v 1.95 v 40 2.7 v 2.7 v 60 i ccb v i = v cci or gnd, i o = 0 m a 0 v 3.6 v 80 3.6 v 0 v ?80 3.6 v 3.6 v 80 c i control inputs v i = 3.3 v or gnd 3.3 v 3.3 v 4 pf c io a or b ports v o = 3.3 v or gnd 3.3 v 3.3 v 5 pf (1) v cco is the v cc associated with the output port. (2) v cci is the v cc associated with the input port. (3) all typical values are at t a = 25c. (4) for i/o ports, the parameter i oz includes the input leakage current. over recommended operating free-air temperature range, v cca = 1.5 v 0.1 v (see figure 2 ) v ccb = 1.5 v v ccb = 1.8 v v ccb = 2.5 v v ccb = 3.3 v from to 0.1 v 0.15 v 0.2 v 0.3 v parameter unit (input) (output) min max min max min max min max a b 1.7 6.7 1.9 6.4 1.8 5.5 1.5 5.8 t pd ns b a 1.8 6.8 1.7 6.2 1.6 5.9 1.5 5.9 a 2.1 9 2.9 9.8 3.2 10 3 9.8 t en oe ns b 2.5 8.4 2.4 8 2.3 7.6 2.2 7.5 a 2.1 7.1 2.3 6.4 1.7 5.1 1.6 4.8 t dis oe ns b 2.2 6.9 1.8 6.4 1.1 5.8 1.8 5.7 over recommended operating free-air temperature range, v cca = 1.8 v 0.15 v (see figure 2 ) v ccb = 1.5 v v ccb = 1.8 v v ccb = 2.5 v v ccb = 3.3 v from to 0.1 v 0.15 v 0.2 v 0.3 v parameter unit (input) (output) min max min max min max min max a b 1.7 6.4 1.8 6 1.7 4.7 1.6 4.3 t pd ns b a 2 6.6 1.8 6 1.8 5.6 1.8 5.5 a 1.8 7.6 2.6 7.7 2.6 7.6 2.6 7.4 t en oe ns b 2.5 8.2 2.5 7.5 2.4 7.4 2.3 7.2 a 1.8 7 2.5 6.3 1.8 4.7 1.7 4.4 t dis oe ns b 2.5 6.7 2.3 6.1 2.2 5.5 1.3 5.3 7 www .ti.com
switching characteristics switching characteristics operating characteristics sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 over recommended operating free-air temperature range, v cca = 2.5 v 0.2 v (see figure 2 ) v ccb = 1.5 v v ccb = 1.8 v v ccb = 2.5 v v ccb = 3.3 v from to 0.1 v 0.15 v 0.2 v 0.3 v parameter unit (input) (output) min max min max min max min max a b 1.6 6 1.8 5.6 1.5 4 1.5 3.4 t pd ns b a 1.7 5.4 1.7 4.6 1.5 4 1.5 3.7 a 1.7 5.7 2.2 5.5 2.2 5.3 2.2 5.1 t en oe ns b 3.1 6.1 2.5 5.6 2.2 5.3 1.9 4.2 a 1.2 5.8 1.9 5 1.4 3.6 1.3 3.3 t dis oe ns b 2.4 6 3 5.2 1.4 3.6 1.2 3 over recommended operating free-air temperature range, v cca = 3.3 v 0.3 v (see figure 2 ) v ccb = 1.5 v v ccb = 1.8 v v ccb = 2.5 v v ccb = 3.3 v from to 0.1 v 0.15 v 0.2 v 0.3 v parameter unit (input) (output) min max min max min max min max a b 1.5 5.9 1.7 5.4 1.5 3.7 1.4 3.1 t pd ns b a 1.5 5.8 1.5 4.2 1.5 3.3 1.4 3.1 a 1.6 4.9 2 4.5 2 4.3 1.9 4.1 t en oe ns b 2 5.1 2 4.6 2.2 5.2 1.9 4.1 a 1.3 6.9 2.1 5.5 1.6 3.8 1.5 3.5 t dis oe ns b 2.3 5.5 1.9 4.5 1.3 3.5 1.2 3.5 v cca and v ccb = 3.3 v, t a = 25c parameter test conditions typ unit outputs enabled 14 power-dissipation capacitance per transceiver, a-port input, b-port output outputs disabled 7 c pda c l = 0, f = 10 mhz pf (v cca ) outputs enabled 20 power-dissipation capacitance per transceiver, b-port input, a-port output outputs disabled 7 outputs enabled 20 power-dissipation capacitance per transceiver, a-port input, b-port output outputs disabled 7 c pdb c l = 0, f = 10 mhz pf (v ccb ) outputs enabled 14 power-dissipation capacitance per transceiver, b-port input, a-port output outputs disabled 7 8 www .ti.com
output description sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 the doc? circuitry is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. figure 1 shows typical v ol vs i ol and v oh vs i oh curves to illustrate the output impedance and drive capability of the circuit. at the beginning of the signal transition, the doc circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. for more information, refer to the ti application reports, avc logic family technology and applications, literature number scea006, and dynamic output control (doc? ) circuitry technology and applications, literature number scea009. figure 1. typical output voltage vs output current 9 www .ti.com 136 -128 -144 -160 0.4 0.8 1.2 1.6 2.0 2.4 2.8 170 153 1 19 102 85 68 51 34 17 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 t a = 25 c process = nominal i o l - output current - ma v c c = 3.3 v v c c = 2.5 v v c c = 1.8 v - output v oltage - v ol v t a = 25 c process = nominal i o h - output current - ma v c c = 3.3 v v c c = 2.5 v v c c = 1.8 v - output v oltage - v oh v -80 -96 -1 12 -32 -48 -64 0 -16
parameter measurement information sn74avcbh324245 32-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs sces550b ? february 2004 ? revised june 2005 figure 2. load circuit and voltage waveforms 10 www .ti.com v o h v o l from output under t est c l (see note a) load circuit s1 2 v c c o open gnd r l r l t p l h t p h l output control (low-level enabling) output w aveform 1 s1 at 2 v c c o (see note b) output w aveform 2 s1 at gnd (see note b) t p z l t p z h t p l z t p h z v c c b /2 v c c b /2 v c c i /2 v c c i /2 v c c i 0 v v c c o /2 v c c o /2 v o h v o l 0 v v c c o /2 v o l + v t p v c c o /2 v o h ? v t p 0 v v c c i 0 v v c c i /2 v c c i /2 t w input v c c b v c c o vol t age w a veforms prop aga tion dela y times vol t age w a veforms pulse dura tion vol t age w a veforms enable and disable times output input t p d t p l z /t p z l t p h z /t p z h open 2 v c c o gnd test s1 notes: a. c l includes probe and jig capacitance. b. w aveform 1 is for an output with internal conditions such that the output is low , except when disabled by the output control. w aveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. c. all input pulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , dv/dt 1 v/ns. d. the outputs are measured one at a time, with one transition per measurement. e. t p l z and t p h z are the same as t d i s . f. t p z l and t p z h are the same as t e n . g. t p l h and t p h l are the same as t p d . h. v c c i is the v c c associated with the input port. i. v c c o is the v c c associated with the output port. 1.5 v 0.1 v 1.8 v 0.15 v 2.5 v 0.2 v 3.3 v 0.3 v 2 k w 1 k w 500 w 500 w v c c o r l 0.1 v 0.15 v0.15 v 0.3 v v t p c l 15 pf30 pf 30 pf 30 pf
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) 74AVCBH324245ZKER active lfbga zke 96 1000 green (rohs & no sb/br) snagcu level-3-250c-168 hr sn74avcbh324245kr nrnd lfbga gke 96 1000 tbd snpb level-3-220c-168 hr (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design. preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs), pb-free (rohs exempt), or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. pb-free (rohs exempt): this component has a rohs exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. the component is otherwise considered pb-free (rohs compatible) as defined above. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. -- the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. package option addendum www.ti.com 30-mar-2007 addendum-page 1

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