View HD74HC442_2042191.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HD74HC442/hd74hc443/hc74hc444 quad. tridirectional bus transceiver (with noninverted 3-state outputs) quad. tridirectional bus transceiver (with inverted 3-state outputs) quad tridirectional bus transceiver (with noninverted/inverted 3-state outputs) description these bus transceivers are designed for a synchronous three-way communication between four-line data buses. they give the designer a choice of selecting inverting, noninverting or a combination of inverting and noninverting data paths with 3-state outputs. the s 0 and s 1 inputs select the bus from which data are to be transferred. the g inputs enable the bus or buses to which data are to be transferred. the port for any bus selected for input and any other bus not enabled for output will be at high impedance. features high speed operation high output current: fanout of 15 lsttl loads wide operating voltage: v cc = 2 to 6 v low input current: 1 ? max low quiescent supply current: i cc (static) = 4 ? max (ta = 25?)
HD74HC442/hd74hc443hd74hc444 2 function table inputs transfers between buses cs s 1 s 0 g a g b g c HD74HC442 hd74hc443 hd74hc444 h x x x x x none none none x h h x x x none none none x x x h h h none none none x l l x h h none none none x l h h x h none none none x h l h h x none none none lllxlla ? b, a ? c a ? b, a ? c a ? b, a ? c l l hlxlb ? c, b ? a b ? c, b ? ab ? c, b ? a l hlll xc ? a, c ? b c ? a, c ? b c ? a, c ? b lllxlha ? b a ? b a ? b l l hhxlb ? c b ? cb ? c l hllhxc ? a c ? a c ? a lllxhla ? c a ? c a ? c l l hlxhb ? a b ? a b ? a lhlhlxc ? b c ? bc ? b
HD74HC442/hd74hc443/hd74hc444 3 pin arrangement ( top view ) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 cs b 1 c 1 c 2 b 2 b 3 c 3 c 4 b 4 gnd v cc a 1 a 2 a 3 a 4 s 1 s 0 g c g b g a absolute maximum ratings item symbol rating unit supply voltage range v cc ?.5 to +7.0 v input voltage v in ?.5 to v cc + 0.5 v output voltage v out ?.5 to v cc + 0.5 v output current i out 35 ma dc current drain per v cc gnd i cc , i gnd 75 ma dc input diode current i ik 20 ma dc output diode current i ok 20 ma power dissipation per package p t 500 mw storage temperature tstg ?5 to +150 c
HD74HC442/hd74hc443hd74hc444 4 logic diagram HD74HC442 s 0 a 1 b 1 c 1 a 2 b 2 c 2 a 3 a 4 b 4 c 4 b 3 c 3 s 1 g a g h g c c s
HD74HC442/hd74hc443/hd74hc444 5 hd74hc443 s 0 a 1 b 1 c 1 a 2 b 2 c 2 a 3 a 4 b 4 c 4 b 3 c 3 s 1 g a g h g c c s
HD74HC442/hd74hc443hd74hc444 6 hd74hc444 s 0 a 1 b 1 c 1 a 2 b 2 c 2 a 3 a 4 b 4 c 4 b 3 c 3 s 1 g a g h g c c s
HD74HC442/hd74hc443/hd74hc444 7 dc characteristics ta = 25 c ta = ?0 to +85 c item symbol v cc (v) min typ max min max unit test conditions input voltage v ih 2.0 1.5 1.5 v 4.5 3.15 3.15 6.0 4.2 4.2 v il 2.0 0.5 0.5 v 4.5 1.35 1.35 6.0 1.8 1.8 output voltage v oh 2.0 1.9 2.0 1.9 v vin = v ih or v il i oh = ?0 m a 4.5 4.4 4.5 4.4 6.0 5.9 6.0 5.9 4.5 4.18 4.13 i oh = ? ma 6.0 5.68 5.63 i oh = ?.8 ma v ol 2.0 0.0 0.1 0.1 v vin = v ih or v il i ol = 20 m a 4.5 0.0 0.1 0.1 6.0 0.0 0.1 0.1 4.5 0.26 0.33 i ol = 6 ma 6.0 0.26 0.33 i ol = 7.8 ma off-state output current i oz 6.0 0.5 5.0 m a vin = v ih or v il , vout = v cc or gnd input current iin 6.0 0.1 1.0 m a vin = v cc or gnd quiescent supply current i cc 6.0 4.0 40 m a vin = v cc or gnd, iout = 0 m a
HD74HC442/hd74hc443hd74hc444 8 ac characteristics (c l = 50 pf, input t r = t f = 6 ns) ta = 25 c ta = ?0 to +85 c item symbol v cc (v) min typ max min max unit test conditions propagation delay t plh 2.0 200 250 ns time t phl 4.5 40 50 6.0 34 43 output enable t zh 2.0 150 190 ns time t zl 4.5 30 38 6.0 26 33 output disable t hz 2.0 150 190 ns time t lz 4.5 30 38 6.0 26 33 output rise/fall t tlh 2.0 60 75 ns time t thl 4.5 12 15 6.0 10 13 input capacitance cin 5 10 10 pf
hitachi code jedec eiaj weight (reference value) dp-20n conforms 1.26 g unit: mm 0.51 min 2.54 min 5.08 max 7.62 0.25 + 0.11 ?0.05 2.54 0.25 0.48 0.10 24.50 25.40 max 0.89 1.30 6.30 7.00 max 1 10 11 20 0 ?15 1.27 max
hitachi code jedec eiaj weight (reference value) fp-20da conforms 0.31 g unit: mm *dimension including the plating thickness base material dimension *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 0.40 0.06 0.20 0.04
hitachi code jedec eiaj weight (reference value) fp-20db conforms 0.52 g unit: mm *dimension including the plating thickness base material dimension 0.12 0.15 0 ?8 m 20 11 0.20 0.10 1 1.27 10 12.8 13.2 max 7.50 2.65 max *0.27 0.05 *0.42 0.08 + 0.57 ?0.30 0.70 + 0.25 ?0.40 10.40 1.45 0.935 max 0.40 0.06 0.25 0.04
cautions 1. hitachi neither warrants nor grants licenses of any rights of hitachi? or any third party? 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? 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? 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? 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:

▲Up To Search▲

Price & Availability of HD74HC442

	To Download HD74HC442 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .