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HD74LVCZ245A octal bidirectional transceivers with 3?tate outputs ade-205-228a (z) 2nd. edition february 1999 description the HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. when (t / r ) is high, data flows from the a inputs to the b outputs, and when (t / r ) is low, data flows from the b inputs to the a outputs. a and b bus are separated by making enable input ( oe ) high level. when v cc is between 0 and 1.5 v, the device is in the high impedance state during power up or power down. low voltage and high speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. features v cc = 2.7 to 5.5 v all inputs v ih (max) = 5.5 v (@v cc = 0 to 5.5 v) all inputs / outputs v i / o (max) = 5.5 v (@v cc = 0 v or output off state) typical v ol ground bounce < 0.8 v (@v cc = 3.3 v, ta = 25 c) typical v oh undershoot > 2.0 v (@v cc = 3.3 v, ta = 25 c) high impedance state during power up and power down power off disables outputs, permitting live insertion high output current 24 ma (@v cc = 3.0 to 5.5 v)
HD74LVCZ245A 2 function table inputs operation oe t / r l l b data to a bus l h a data to b bus hxz h : high level l : low level x : immaterial z : high impedance pin arrangement (top view) 17 18 15 16 19 20 11 12 13 14 v cc oe b0 b1 b2 b3 1 2 3 4 5 6 7 8 9 10 t / r a0 a1 a2 a3 a4 a5 gnd a6 a7 b4 b5 b6 b7
HD74LVCZ245A 3 absolute maximum ratings item symbol ratings unit conditions supply voltage v cc ?.5 to 7.0 v input voltage v i ?.5 to 7.0 v input / output voltage v i/o ?.5 to 7.0 v output ??or v cc : off ?.5 to v cc +0.5 output ??or ? input diode current i ik ?0 ma v i < 0 output diode current i ok ?0 ma v o < 0 output current i o 50 ma v cc , gnd current i cc or i gnd 100 ma storage temperature tstg ?5 to 150 c note: the absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. recommended operating conditions item symbol ratings unit conditions supply voltage v cc 2.7 to 5.5 v at operation input voltage v i 0 to 5.5 v input / output voltage v i/o 0 to 5.5 v output ??or v cc : off 0 to v cc output ??or ? output current i oh ?2 ma v cc = 2.7 v ?4 *1 v cc = 3.0 to 5.5 v i ol 12 v cc = 2.7 v 24 *1 v cc = 3.0 to 5.5 v input rise / fall time t r , t f 0 to 6 ns / v operating temperature ta ?0 to +85 c note: 1. duty cycle 50%
HD74LVCZ245A 4 logic diagram t / r a0 o e b0 1 19 18 2 to seven other channels
HD74LVCZ245A 5 electrical characteristics (ta = ?0 to 85 c) item symbol v cc (v) min typ max unit test conditions input voltage v ih 2.7 to 3.6 2.0 v 4.5 to 5.5 v cc 0.7 v il 2.7 to 3.6 0.8 4.5 to 5.5 v cc 0.3 output voltage v oh 2.7 to 5.5 v cc ?.2 vi oh = ?00 m a 2.7 2.2 i oh = ?2 ma 3.0 2.4 3.0 2.2 i oh = ?4 ma 4.5 3.8 v ol 2.7 to 5.5 0.2 i ol = 100 m a 2.7 0.4 i ol = 12 ma 3.0 0.55 i ol = 24 ma 4.5 0.55 input current i in 0 to 5.5 5 m av in = 0 to 5.5 v off state output current i oz 2.7 to 5.5 5 m av out = 0 to 5.5 v i ozpu 0 to 1.5 5v out = 0.5 to 5.5 v, i ozpd 1.5 to 0 5 output enable = don? care output leak current i off 0 5 m av in or v o = 5.5 v quiescent supply i cc 2.7 to 3.6 225 m av in = 3.6 to 5.5 v *1 , i o = 0 current 2.7 to 5.5 350 v in = v cc or gnd d i cc 2.7 to 3.6 500 v in = one input at (v cc ?.6) v, other inputs at v cc or gnd input capacitance c in 3.3 3.4 pf v in = v cc or gnd input / output capacitance c i/o 3.3 8.5 pf v out = v cc or gnd note: 1. this applies in the disabled state only.
HD74LVCZ245A 6 switching characteristics (ta = ?0 to 85 c) item symbol v cc (v) min typ max unit from (input) to (output) propagation delay time t plh 2.7 7.3 ns a or b b or a t phl 3.3 0.3 1.5 6.3 5.0 0.5 4.8 output enable time t zh 2.7 9.5 ns oe a or b t zl 3.3 0.3 1.5 8.5 5.0 0.5 7.0 output disable time t hz 2.7 8.5 ns oe a or b t lz 3.3 0.3 1.7 7.5 5.0 0.5 6.5 between output pin skew *1 t oslh 2.7 ns t oshl 3.3 0.3 1.0 5.0 0.5 1.0 note : 1. this parameter is characterized but not tested. t oslh = |t plhm ? plhn |, t oshl = |t phlm ? phln | test circuit v cc a0 open see under table c = 50 pf oe t / r output *1 input see function table pulse generator b0 z out = 50 w s1 500 w 450 w 50 scope w gnd 6 v v cc s2 l vcc=2.7v, vcc=5.0 0.5v 3.3 0.3v t / t plh phl open gnd t / t zh hz t / t zl lz 2 v cc symbol s2 open gnd note: 1. c includes probe and jig capacitance. l
HD74LVCZ245A 7 t plh t phl v oh v oh v ol v ol gnd v ih 10 % 90 % input waveform ?a waveform ?b in phase output 10 % 90 % ?waveforms ?1 ?waveforms ?2 t r v ref v ref v ref v ref v ref v ref rf v ref v ref t f t r t f t zl gnd v ih v ih v ref v oh1 v ol1 v oh1 v ol1 t lz t zh t hz 10 % 10 % 90 % 90 % oe v ?0.3 v oh v + 0.3 v ol vcc=2.7v vcc=5.0 0.5v 3.3 0.3v gnd 3 v 1.5 v 2.7 v 50%v cc v cc v cc test notes: 1. input waveform : prr = 10 mhz, duty cycle 50%, t = 2.5 ns, t = 2.5 ns 2. waveform ?a shows input conditions such that the output is ??level when enabled by the output control. 3. waveform ?b shows input conditions such that the output is ??level when enabled b y the output control. gnd
HD74LVCZ245A 8 power up / down characteristics ta = 25 c output enable = ? 0 1.0 2.0 v cc (v) v out (v) 3.0 4.0 enable area disable area 1.0 0 2.0 3.0 4.0
HD74LVCZ245A 9 package dimensions unit : mm 0.42 ?0.08 0.12 0.15 m 20 10 1 0.22 ?0.05 0.80 max 11 12.6 5.5 2.20 max 13 max 0??8 0.70 ?0.20 + 0.20 ?0.30 7.80 1.27 0.10 ?0.10 1.15 hitachi code jedec eiaj weight (reference value) fp-20da conforms 0.31 g 0.40 ?0.06 0.20 ?0.04 dimension including the plating thickness base material dimension
HD74LVCZ245A 10 0.50 ?0.10 0??8 0.17 ?0.05 6.40 ?0.20 0.10 1.10 max 0.13 m 0.65 110 20 11 4.40 6.50 6.80 max 0.22 +0.08 ?.07 0.07 +0.03 ?.04 1.0 hitachi code jedec eiaj weight (reference value) ttp-20da 0.07 g 0.65 max 0.20 ?0.06 0.15 ?0.04 dimension including the plating thickness base material dimension
cautions 1. hitachi neither warrants nor grants licenses of any rights of hitachi?s or any third party?s patent, copyright, trademark, or other intellectual property rights for information contained in this document. hitachi bears no responsibility for problems that may arise with third party?s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. products and product specifications may be subject to change without notice. confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. hitachi makes every attempt to ensure that its products are of high quality and reliability. however, contact hitachi?s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. design your application so that the product is used within the ranges guaranteed by hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the hitachi product. 5. this product is not designed to be radiation resistant. 6. no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from hitachi. 7. contact hitachi?s sales office for any questions regarding this document or hitachi semiconductor products. hitachi, ltd. semiconductor & integrated circuits. nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan tel: tokyo (03) 3270-2111 fax: (03) 3270-5109 copyright ? hitachi, ltd., 1999. all rights reserved. printed in japan. hitachi asia pte. ltd. 16 collyer quay #20-00 hitachi tower singapore 049318 tel: 535-2100 fax: 535-1533 url northamerica : http:semiconductor.hitachi.com/ europe : http://www.hitachi-eu.com/hel/ecg asia (singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm asia (taiwan) : http://www.hitachi.com.tw/e/product/sicd_frame.htm asia (hongkong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm japan : http://www.hitachi.co.jp/sicd/indx.htm hitachi asia ltd. taipei branch office 3f, hung kuo building. no.167, tun-hwa north road, taipei (105) tel: <886> (2) 2718-3666 fax: <886> (2) 2718-8180 hitachi asia (hong kong) ltd. group iii (electronic components) 7/f., north tower, world finance centre, harbour city, canton road, tsim sha tsui, kowloon, hong kong tel: <852> (2) 735 9218 fax: <852> (2) 730 0281 telex: 40815 hitec hx hitachi europe ltd. electronic components group. whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 778322 hitachi europe gmbh electronic components group dornacher strae 3 d-85622 feldkirchen, munich germany tel: <49> (89) 9 9180-0 fax: <49> (89) 9 29 30 00 hitachi semiconductor (america) inc. 179 east tasman drive, san jose,ca 95134 tel: <1> (408) 433-1990 fax: <1>(408) 433-0223 for further information write to:

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