View 74LVC646APW_6734672.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1. general description the 74lvc646a is a high-performance, low-power, low-voltage, si-gate cmos device and superior to most advanced cmos compatible ttl families. inputs can be driven from either 3.3 v or 5 v devices. in 3-state operation, outputs can handle 5 v. this feature allows the use of these devices as translators in a mixed 3.3 v and 5 v environment. the 74lvc646a consists of non-inverting bus transceiver circuits with 3-state outputs, d-type ?ip-?ops and control circuitry arranged for multiplexed transmission of data directly from the internal registers. data on the a or b bus will be clocked in the internal registers, as the appropriate clock (cpab or cpba) goes to a high logic level. output enable ( oe) and direction (dir) inputs are provided to control the transceiver function. in the transceiver mode, data present at high-impedance port may be stored in either the a or b register, or in both. with the select source inputs (sab and sba) stored and real-time (transparent mode) data can be multiplexed. the direction (dir) input determines which bus will receive data when oe is active (low). in the isolation mode ( oe = high), a data may be stored in the b register and/or b data may be stored in the a register. when an output function is disabled, the input function is still enabled and may be used to store and transmit data. only one of the two buses a or b may be driven at a time. 2. features n 5 v tolerant inputs/outputs for interfacing with 5 v logic n supply voltage range from 1.2 v to 3.6 v n complies with jedec standard jesd8-b/jesd36 n cmos low-power consumption n direct interface with ttl levels n 8-bit octal transceiver with d-type latch n back-to-back registers for storage n separate controls for data ?ow in each direction n supports partial power-down applications; inputs/outputs are high-impedance when v cc = 0 v n esd protection: u hbm eia/jesd22-a114-b exceeds 2000 v u mm eia/jesd22-a115-a exceeds 200 v. n speci?ed from - 40 cto+85 c and - 40 c to +125 c. 74lvc646a octal bus transceiver/register; 3-state rev. 04 29 june 2004 product data sheet
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 2 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 3. quick reference data [1] c pd is used to determine the dynamic power dissipation (p d in m w). p d =c pd v cc 2 f i n+ s (c l v cc 2 f o ) where: f i = input frequency in mhz; f o = output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in v; n = total load switching outputs; s (c l v cc 2 f o ) = sum of the outputs. [2] the condition is v i = gnd to v cc . 4. ordering information table 1: quick reference data gnd = 0 v; t amb =25 c; t r =t f 2.5 ns. symbol parameter conditions min typ max unit t phl , t plh propagation delay an, bn to bn, an c l =50pf; v cc = 3.3 v - 3.0 - ns f max maximum clock frequency c l =50pf; v cc = 3.3 v - 250 - mhz c i input capacitance - 5.0 - pf c i/o input/output capacitance - 10.0 - pf c pd power dissipation capacitance per latch v cc = 3.3 v; outputs enabled [1] [2] -15-pf table 2: ordering information type number package temperature range name description version 74lvc646ad - 40 c to +125 c so24 plastic small outline package; 24 leads; body width 7.5 mm sot137-1 74lvc646adb - 40 c to +125 c ssop24 plastic shrink small outline package; 24 leads; body width 5.3 mm sot340-1 74LVC646APW - 40 c to +125 c tssop24 plastic thin shrink small outline package; 24 leads; body width 4.4 mm sot355-1
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 3 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 5. functional diagram fig 1. functional diagram. b0 20 4a0 b1 19 5a1 b2 18 6a2 b3 17 7a3 b4 16 8a4 b5 15 9a5 oe dir sab sba cpab cpba b6 14 10 a6 b7 13 11 a7 23 1 22 2 3 21 001aab042
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 4 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state fig 2. logic symbol. fig 3. iec logic symbol. 3 4 5 6 7 8 9 10 11 1 2 cpab sab dir a0 a1 a2 a3 a4 a5 a6 a7 oe 21 b0 b1 b2 b3 b4 b5 b6 b7 cpba sba 23 22 20 19 18 17 16 15 14 13 001aab040 3en2 3en1 4 001aab041 6 3 1 g6 g7 22 2 c5 g3 1 21 c4 23 6 1 4d 1 5d 1 7 1 7 2 20 5 19 6 18 7 17 8 16 9 15 10 14 11 13
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 5 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state fig 4. logic diagram. 001aab043 dir oe sba cpba sab cpab y mux d 1 d 2 s q ff n d cp bn v cc y mux d 1 d 2 s q ff n d cp v cc an 8 identical channels
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 6 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 6. pinning information 6.1 pinning 6.2 pin description fig 5. pin con?guration. 646a cpab v cc sab cpba dir sba a0 oe a1 b0 a2 b1 a3 b2 a4 b3 a5 b4 a6 b5 a7 b6 gnd b7 001aab039 1 2 3 4 5 6 7 8 9 10 11 12 14 13 16 15 18 17 20 19 22 21 24 23 table 3: pin description symbol pin description cpab 1 a to b clock input (low-to-high; edge-triggered) sab 2 a to b select source input dir 3 direction control input a0 4 a data input/output a1 5 a data input/output a2 6 a data input/output a3 7 a data input/output a4 8 a data input/output a5 9 a data input/output a6 10 a data input/output a7 11 a data input/output gnd 12 ground (0 v) b7 13 b data input/output b6 14 b data input/output b5 15 b data input/output b4 16 b data input/output b3 17 b data input/output b2 18 b data input/output b1 19 b data input/output b0 20 b data input/output oe 21 output enable input (active low)
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 7 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 7. functional description 7.1 function table [1] un = unspeci?ed; h = high voltage level; l = low voltage level; x = dont care; - = low-to-high level transition. [2] the data output functions may be enabled or disabled by various signals at the oe and dir inputs. data input functions are always enabled, i.e. data at the bus inputs will be stored on every low-to-high transition on the clock inputs. 8. limiting values sba 22 b to a select source input cpba 23 b to a clock input (low-to-high, edge-triggered) v cc 24 supply voltage table 3: pin description continued symbol pin description table 4: function table [1] input data i/o function oe dir cpab cpba sab sba a0 to a7 b0 to b7 xx - x x x input un [2] store a and b unspeci?ed xxx - xxun [2] input store b and a unspeci?ed hx -- x x input input store a and b data h x h or l h or l x x input input hold storage; isolation l l x x x l output input real-time b data to a bus l l x h or l x h output input stored b data to a bus l h x x l x input output real-time a data to b bus l h h or l x h x input output stored a data to b bus table 5: limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit v cc supply voltage - 0.5 +6.5 v i ik input diode current v i <0v - - 50 ma v i input voltage [1] - 0.5 +6.5 v i ok output diode current v o >v cc or v o <0v - 50 ma v o output voltage output high or low state [1] - 0.5 v cc + 0.5 v output 3-state [1] - 0.5 +6.5 v i o output source or sink current v o = 0 v to v cc - 50 ma
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 8 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state [1] the input and output voltage ratings may be exceeded if the input and output current ratings are observed. [2] for so24 packages: above 70 c the value of p tot derates linearly with 8 mw/k. for (t)ssop24 packages: above 60 c the value of p tot derates linearly with 5.5 mw/k. 9. recommended operating conditions 10. static characteristics i cc ,i gnd v cc or gnd current - 100 ma t stg storage temperature - 65 +150 c p tot power dissipation t amb = - 40 c to +125 c [2] - 500 mw table 5: limiting values continued in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit table 6: recommended operating conditions symbol parameter conditions min typ max unit v cc supply voltage for maximum speed performance 2.7 - 3.6 v for low-voltage applications 1.2 - 3.6 v v i input voltage 0 - 5.5 v v o output voltage high or low state 0 - v cc v 3-state 0 - 5.5 v t amb operating ambient temperature in free air - 40 - +125 c t r , t f input rise and fall times v cc = 1.2 v to 2.7 v 0 - 20 ns/v v cc = 2.7 v to 3.6 v 0 - 10 ns/v table 7: static characteristics at recommended operating conditions; voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min typ max unit t amb = - 40 c to +85 c [1] v ih high-level input voltage v cc = 1.2 v v cc -- v v cc = 2.7 v to 3.6 v 2.0 - - v v il low-level input voltage v cc = 1.2 v - - gnd v v cc = 2.7 v to 3.6 v - - 0.8 v v oh high-level output voltage v i =v ih or v il i o = - 100 m a; v cc = 2.7 v to 3.6 v [2] v cc - 0.2 v cc -v i o = - 12 ma; v cc = 2.7 v v cc - 0.5 - - v i o = - 18 ma; v cc = 3.0 v v cc - 0.6 - - v i o = - 24 ma; v cc = 3.0 v v cc - 0.8 - - v v ol low-level output voltage v i =v ih or v il i o = 100 m a; v cc = 2.7 v to 3.6 v [2] - gnd 0.2 v i o = 12 ma; v cc = 2.7 v - - 0.4 v i o = 24 ma; v cc = 3.0 v - - 0.55 v
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 9 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state [1] all typical values are measured at t amb =25 c. [2] these typical values are measured at v cc = 3.3 v. [3] for transceivers, the parameter i oz includes the input leakage current. i li input leakage current v i = 5.5 v or gnd; v cc = 3.6 v - 0.1 5 m a i oz 3-state output off-state current v i =v ih or v il ; v o = 5.5 v or gnd; v cc = 3.6 v [3] - 0.1 10 m a i off power-off leakage supply current v i or v o = 5.5 v; v cc = 0 v - 0.1 10 m a i cc quiescent supply current i o = 0 a; v i =v cc or gnd; v cc = 3.6 v - 0.1 10 m a d i cc additional quiescent supply current per pin i o = 0 a; v i =v cc - 0.6 v; v cc = 2.7 v to 3.6 v [2] - 5 500 m a c i input capacitance - 5.0 - pf c i/o input/output capacitance - 10.0 - pf t amb = - 40 c to +125 c v ih high-level input voltage v cc = 1.2 v v cc -- v v cc = 2.7 v to 3.6 v 2.0 - - v v il low-level input voltage v cc = 1.2 v - - 0 v v cc = 2.7 v to 3.6 v - - 0.8 v v oh high-level output voltage v i =v ih or v il i o = - 100 m a; v cc = 2.7 v to 3.6 v v cc - 0.3 - - v i o = - 12 ma; v cc = 2.7 v v cc - 0.65 - - v i o = - 18 ma; v cc = 3.0 v v cc - 0.75 - - v i o = - 24 ma; v cc = 3.0 v v cc - 1- - v v ol low-level output voltage v i =v ih or v il i o = 100 m a; v cc = 2.7 v to 3.6 v - - 0.3 v i o = 12 ma; v cc = 2.7 v - - 0.6 v i o = 24 ma; v cc = 3.0 v - - 0.8 v i li input leakage current v i = 5.5 v or gnd; v cc = 3.6 v - - 20 m a i oz 3-state output off-state current v i =v ih or v il ; v o = 5.5 v or gnd; v cc = 3.6 v [3] -- 20 m a i off power-off leakage supply current v i or v o = 5.5 v; v cc =0v - - 20 m a i cc quiescent supply current i o = 0 a; v i =v cc or gnd; v cc = 3.6 v - - 40 m a d i cc additional quiescent supply current per pin i o = 0 a; v i =v cc - 0.6 v; v cc = 2.7 v to 3.6 v - - 5000 m a table 7: static characteristics continued at recommended operating conditions; voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min typ max unit
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 10 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 11. dynamic characteristics table 8: dynamic characteristics gnd = 0 v; see figure 11 for test circuit. symbol parameter conditions min typ max unit t amb = - 40 c to +85 c [1] t phl , t plh propagation delay an, bn to bn, an see figure 6 v cc = 1.2 v - 17 - ns v cc = 2.7 v 1.5 - 7.8 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.0 6.8 ns propagation delay cpab, cpba to bn, an see figure 7 v cc = 1.2 v - 19 - ns v cc = 2.7 v 1.5 - 8.6 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.7 7.6 ns propagation delay sab, sba to bn, an see figure 8 v cc = 1.2 v - 19 - ns v cc = 2.7 v 1.5 - 9.5 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.4 8.5 ns t pzh , t pzl 3-state output enable time oe to an and bn see figure 9 v cc = 1.2 v - 20 - ns v cc = 2.7 v 1.5 - 8.8 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.1 7.8 ns 3-state output enable time dir to an and bn see figure 10 v cc = 1.2 v - 20 - ns v cc = 2.7 v 1.5 - 8.9 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.3 7.9 ns t phz , t plz 3-state output disable time oe to an and bn see figure 9 v cc = 1.2 v - 10 - ns v cc = 2.7 v 1.5 - 7.1 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.2 6.1 ns 3-state output disable time dir to an and bn see figure 10 v cc = 1.2 v - 10 - ns v cc = 2.7 v 1.5 - 7.0 ns v cc = 3.0 v to 3.6 v [2] 1.0 3.0 6.0 ns t w clock pulse width high or low of cpab or cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 3.3 - - ns v cc = 3.0 v to 3.6 v [2] 3.3 1.9 - ns t su set-up time an, bn to cpab, cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 1.6 - - ns v cc = 3.0 v to 3.6 v [2] 1.5 0.35 - ns
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 11 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state t h hold time an, bn to cpab, cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 1.0 - - ns v cc = 3.0 v to 3.6 v [2] 1.0 - 0.3 - ns f max maximum clock pulse frequency see figure 7 v cc = 1.2 v - - - mhz v cc = 2.7 v 150 - - mhz v cc = 3.0 v to 3.6 v [2] 150 250 - mhz t sk(0) skew v cc = 3.0 v to 3.6 v [3] - - 1.0 ns c pd power dissipation capacitance per latch v cc = 3.3 v; outputs enabled [4] [5] -15-pf t amb = - 40 c to +125 c t phl , t plh propagation delay an, bn to bn, an see figure 6 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 10.0 ns v cc = 3.0 v to 3.6 v 1.0 - 8.0 ns propagation delay cpab, cpba to bn, an see figure 7 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 11.0 ns v cc = 3.0 v to 3.6 v 1.0 - 9.5 ns propagation delay sab, sba to bn, an see figure 8 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 12.0 ns v cc = 3.0 v to 3.6 v 1.0 - 11.0 ns t pzh , t pzl 3-state output enable time oe to an and bn see figure 9 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 11.0 ns v cc = 3.0 v to 3.6 v 1.0 - 10.0 ns 3-state output enable time dir to an and bn see figure 10 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 11.5 ns v cc = 3.0 v to 3.6 v 1.0 - 10.0 ns t phz , t plz 3-state output disable time oe to an and bn see figure 9 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 9.0 ns v cc = 3.0 v to 3.6 v 1.0 - 8.0 ns 3-state output disable time dir to an and bn see figure 10 v cc =1.2v ---ns v cc = 2.7 v 1.5 - 9.0 ns v cc = 3.0 v to 3.6 v 1.0 - 7.5 ns table 8: dynamic characteristics continued gnd = 0 v; see figure 11 for test circuit. symbol parameter conditions min typ max unit
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 12 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state [1] all typical values are measured at t amb =25 c. [2] these typical values are measured at v cc = 3.3 v. [3] skew between any two outputs of the same package switching in the same direction. this parameter is guaranteed by design. [4] c pd is used to determine the dynamic power dissipation (p d in m w). p d =c pd v cc 2 f i n+ s (c l v cc 2 f o ) where: f i = input frequency in mhz; f o = output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in v; n = total load switching outputs; s (c l v cc 2 f o ) = sum of the outputs. [5] the condition is v i = gnd to v cc . t w clock pulse width high or low of cpab or cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 3.3 - - ns v cc = 3.0 v to 3.6 v 3.3 - - ns t su set-up time an, bn to cpab, cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 1.6 - - ns v cc = 3.0 v to 3.6 v 1.5 - - ns t h hold time an, bn to cpab, cpba see figure 7 v cc =1.2v ---ns v cc = 2.7 v 1.0 - - ns v cc = 3.0 v to 3.6 v 1.0 - - ns f max maximum clock pulse frequency see figure 7 v cc = 1.2 v - - - mhz v cc = 2.7 v 150 - - mhz v cc = 3.0 v to 3.6 v 150 - - mhz t sk(0) skew v cc = 3.0 v to 3.6 v [3] - - 1.5 ns table 8: dynamic characteristics continued gnd = 0 v; see figure 11 for test circuit. symbol parameter conditions min typ max unit
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 13 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 12. waveforms measurement points are given in t ab le 9 . v ol and v oh are typical output voltage drop that occur with the output load. fig 6. input (an and bn) to output (bn and an) propagation delays. table 9: measurement points supply voltage input output v cc v m v m < 2.7 v 0.5 v cc 0.5 v cc 3 2.7 v 1.5 v 1.5 v measurement points are given in t ab le 9 . v ol and v oh are typical output voltage drop that occur with the output load. fig 7. the an, bn to cpab, cpba set-up and hold times, clock cpab and cpba pulse width, maximum clock pulse frequency and the cpab, cpba to output bn, an propagation delays. 001aab044 t plh t phl v m v m an, bn input bn, an output gnd v i v oh v ol t h t su t h t w t su 1/f max v m v m v i gnd v oh v ol cpab, cpba input an, bn input 001aab045 t phl t plh v m v oh v ol bn, an output
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 14 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state measurement points are given in t ab le 9 . v ol and v oh are typical output voltage drop that occur with the output load. fig 8. the input sab and sba to output bn and an propagation delay times. measurement points are given in t ab le 10 . v ol and v oh are typical output voltage drop that occur with the output load. fig 9. the input oe to output an and bn 3-state enable and disable times. table 10: measurement points supply voltage input output v cc v m v m v x v y < 2.7 v 0.5 v cc 0.5 v cc v ol + 0.1 v cc v oh - 0.1 v cc 3 2.7 v 1.5 v 1.5 v v ol + 0.3 v v oh - 0.3 v 001aab046 t phl t plh v m v m sab, sba input bn, an output gnd v i v oh v ol 001aab047 t plz t phz outputs disabled outputs enabled v y v x outputs enabled output low-to-off off-to-low output high-to-off off-to-high an, bn an, bn oe input v i v ol v oh v cc v m gnd gnd t pzl t pzh v m v m
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 15 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state measurement points are given in t ab le 10 . v ol and v oh are typical output voltage drop that occur with the output load. fig 10. the input showing the input dir to output an, bn 3-state enable and disable times. 001aab048 t phz t plz an output an output dir input v i v oh v ol gnd v m gnd v cc t pzh t pzl v m v m v y v x v x v y t phz v m v m t pzh t pzl v ol v oh v ol v oh bn output bn output t plz
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 16 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state [1] the circuit performs better when r l = 1000 w. test data is given in t ab le 11 . de?nitions test circuit: r l = load resistance. c l = load capacitance including jig and probe capacitance. r t = termination resistance should be equal to output impedance z o of the pulse generator. fig 11. load circuitry for switching times. table 11: test data supply voltage input load v ext v cc v i t r , t f c l r l t plh , t phl t pzh , t phz t pzl , t plz 1.2 v v cc 2.5 ns 50 pf 500 w [1] open gnd 2 v cc 2.7 v 2.7 v 2.5 ns 50 pf 500 w open gnd 2 v cc 3.0 v to 3.6 v 2.7 v 2.5 ns 50 pf 500 w open gnd 2 v cc v ext v cc v i v o mna616 d.u.t. c l r t r l r l pulse generator
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 17 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 13. application information values for inputs are given in t ab le 12 . values for inputs are given in t ab le 12 . fig 12. real-time transfer; bus b to bus a. fig 13. real-time transfer; bus a to bus b. table 12: real-time transfer direction input oe dir cpab cpba sab sba bus b to bus a l l xxxl bus a to bus b l h x x l x 001aab049 bus a bus b inputs 001aab050 bus a bus b inputs
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 18 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state values for inputs are given in t ab le 13 . values for inputs are given in t ab le 13 . fig 14. bus a and bus b to storage. fig 15. storage to bus a or bus b. table 13: storage transfer function input oe dir cpab cpba sab sba bus a to storage x x - xxx bus b to storage x x x - xx bus a and b to storage h x -- xx storage to bus a l l x h or l x h storage to bus b l h h or l x h x 001aab051 inputs bus a bus b 001aab052 bus a bus b inputs
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 19 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 14. package outline fig 16. package outline so24. unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec jeita mm inches 2.65 0.3 0.1 2.45 2.25 0.49 0.36 0.32 0.23 15.6 15.2 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.1 0.4 sot137-1 x 12 24 w m q a a 1 a 2 b p d h e l p q detail x e z c l v m a 13 (a ) 3 a y 0.25 075e05 ms-013 pin 1 index 0.1 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.61 0.60 0.30 0.29 0.05 1.4 0.055 0.419 0.394 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 e 1 0 5 10 mm scale so24: plastic small outline package; 24 leads; body width 7.5 mm sot137-1 99-12-27 03-02-19
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 20 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state fig 17. package outline ssop24. unit a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p qz 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 8.4 8.0 5.4 5.2 0.65 1.25 7.9 7.6 0.9 0.7 0.8 0.4 8 0 o o 0.13 0.1 0.2 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 sot340-1 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 112 24 13 0.25 y pin 1 index 0 2.5 5 mm scale ssop24: plastic shrink small outline package; 24 leads; body width 5.3 mm sot340-1 a max. 2
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 21 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state fig 18. package outline tssop24. unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec jeita mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 7.9 7.7 4.5 4.3 0.65 6.6 6.2 0.4 0.3 8 0 o o 0.13 0.1 0.2 1 dimensions (mm are the original dimensions) notes 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 sot355-1 mo-153 99-12-27 03-02-19 0.25 0.5 0.2 w m b p z e 112 24 13 pin 1 index q a a 1 a 2 l p q detail x l (a ) 3 h e e c v m a x a d y 0 2.5 5 mm scale tssop24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm sot355-1 a max. 1.1
9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 22 of 24 philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 15. revision history table 14: revision history document id release date data sheet status change notice order number supersedes 74lvc646a_4 20040629 product data sheet - 9397 750 13249 74lvc646a_3 modi?cations: ? the format of this data sheet has been redesigned to comply with the new presentation and information standard of philips semiconductors ? t ab le 1 : updated various values ? t ab le 7 : added values for t amb = - 40 c to +125 c ? t ab le 8 : updated various values ? t ab le 8 : added values for t amb = - 40 c to +125 c. 74lvc646a_3 20000621 product speci?cation - 9397 750 07235 74lvc646a_2 74lvc646a_2 19980729 product speci?cation - 9397 750 04516 74lvc646a_1 74lvc646a_1 19980302 product speci?cation - 9397 750 03391 -
philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 9397 750 13249 ? koninklijke philips electronics n.v. 2004. all rights reserved. product data sheet rev. 04 29 june 2004 23 of 24 16. data sheet status [1] please consult the most recently issued data sheet before initiating or completing a design. [2] the product status of the device(s) described in this data sheet may have changed since this data sheet was published. the l atest information is available on the internet at url http://www.semiconductors.philips.com. [3] for data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. 17. de?nitions short-form speci?cation the data in a short-form speci?cation is extracted from a full data sheet with the same type number and title. for detailed information see the relevant data sheet or data handbook. limiting values de?nition limiting values given are in accordance with the absolute maximum rating system (iec 60134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information applications that are described herein for any of these products are for illustrative purposes only. philips semiconductors make no representation or warranty that such applications will be suitable for the speci?ed use without further testing or modi?cation. 18. disclaimers life support these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips semiconductors for any damages resulting from such application. right to make changes philips semiconductors reserves the right to make changes in the products - including circuits, standard cells, and/or software - described or contained herein in order to improve design and/or performance. when the product is in full production (status production), relevant changes will be communicated via a customer product/process change noti?cation (cpcn). philips semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise speci?ed. 19. contact information for additional information, please visit: http://www.semiconductors.philips.com for sales of?ce addresses, send an email to: sales.addresses@www.semiconductors.philips.com level data sheet status [1] product status [2] [3] de?nition i objective data development this data sheet contains data from the objective speci?cation for product development. philips semiconductors reserves the right to change the speci?cation in any manner without notice. ii preliminary data quali?cation this data sheet contains data from the preliminary speci?cation. supplementary data will be published at a later date. philips semiconductors reserves the right to change the speci?cation without notice, in order to improve the design and supply the best possible product. iii product data production this data sheet contains data from the product speci?cation. philips semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. relevant changes will be communicated via a customer product/process change noti?cation (cpcn).
? koninklijke philips electronics n.v. 2004 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. date of release: 29 june 2004 document order number: 9397 750 13249 published in the netherlands philips semiconductors 74lvc646a octal bus transceiver/register; 3-state 20. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 quick reference data . . . . . . . . . . . . . . . . . . . . . 2 4 ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 6 pinning information . . . . . . . . . . . . . . . . . . . . . . 6 6.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6 7 functional description . . . . . . . . . . . . . . . . . . . 7 7.1 function table . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 7 9 recommended operating conditions. . . . . . . . 8 10 static characteristics. . . . . . . . . . . . . . . . . . . . . 8 11 dynamic characteristics . . . . . . . . . . . . . . . . . 10 12 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 13 application information. . . . . . . . . . . . . . . . . . 17 14 package outline . . . . . . . . . . . . . . . . . . . . . . . . 19 15 revision history . . . . . . . . . . . . . . . . . . . . . . . . 22 16 data sheet status . . . . . . . . . . . . . . . . . . . . . . . 23 17 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 18 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 19 contact information . . . . . . . . . . . . . . . . . . . . 23

▲Up To Search▲

Price & Availability of 74LVC646APW

	To Download 74LVC646APW Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .