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HD74ALVCH16721 3.3-v 20-bit flip flops with 3-state outputs ade-205-139b (z) 3rd. edition december 1999 description the HD74ALVCH16721? twenty flip flops are edge triggered d-type flip flops with qualified clock storage. on the positive transition of the clock (clk) input, the device provides true data at the q outputs, provided that the clock enable ( clken ) input is low. if clken is high, no data is stored. a buffered output enable ( oe ) input can be used to place the twenty outputs in either a normal logic state (high or low level) or a high impedance state. in the high impedance state, the outputs neither load nor drive the bus lines significantly. the high impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components. the output enable ( oe ) input does not affect the internal operation of the flip flops. old data can be retained or new data can be entered while the outputs are in the high impedance state. active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level. features v cc = 2.3 v to 3.6 v 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 output current 24 ma (@v cc = 3.0 v) bus hold on data inputs eliminates the need for external pullup / pulldown resistors
HD74ALVCH16721 2 function table inputs output q oe clken clk d l hxxq 0 *1 ll - hh ll - ll l l l or h x q 0 *1 hxxxz h : high level l : low level x : immaterial z : high impedance - : low to high transition note: 1. output level before the indicated steady state input conditions were established.
HD74ALVCH16721 3 pin arrangement (top view) 1 2 3 4 5 6 7 8 9 10 v cc v cc q1 q2 gnd q3 q4 q5 q6 q7 gnd q8 q9 q10 q11 q12 q13 gnd q14 q15 q16 q17 q18 oe 11 12 13 14 15 16 17 18 19 20 21 22 23 24 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 d18 gnd 25 32 gnd q19 26 31 d19 q20 27 30 d20 nc 28 29 clken d17 d16 d15 d14 d13 gnd d12 d11 d10 d9 d8 gnd d7 d6 d5 d4 d3 d2 clk gnd d1 v cc v cc
HD74ALVCH16721 4 absolute maximum ratings item symbol ratings unit conditions supply voltage v cc ?.5 to 4.6 v input voltage 1 v i ?.5 to 4.6 v output voltage *1, 2 v o ?.5 to v cc +0.5 v input clamp current i ik ?0 ma v i < 0 output clamp current i ok 50 ma v o < 0 or v o > v cc continuous output current i o 50 ma v o = 0 to v cc v cc , gnd current / pin i cc or i gnd 100 ma maximum power dissipation at ta = 55 c (in still air) *3 p t 1 w tssop storage temperature tstg ?5 to 150 c notes: stresses beyond those listed under ?bsolute 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 ?ecommended operating conditions?is not implied. exposure to absolute maximum rated conditions for extended periods may affect device reliability. 1. the input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 2. this value is limited to 4.6 v maximum. 3. the maximum package power dissipation is calculated using a junction temperature of 150 c and a board trace length of 750 mils. recommended operating conditions item symbol min max unit conditions supply voltage v cc 2.3 3.6 v input voltage v i 0v cc v output voltage v o 0v cc v high level output current i oh ?2 ma v cc = 2.3 v ?2 v cc = 2.7 v ?4 v cc = 3.0 v low level output current i ol ?2mav cc = 2.3 v ?2 v cc = 2.7 v ?4 v cc = 3.0 v input transition rise or fall rate d t / d v 0 10 ns / v operating temperature ta ?0 85 c note: unused control inputs must be held high or low to prevent them from floating.
HD74ALVCH16721 5 logic diagram oe clk 1 56 55 clken d1 29 q1 to nineteen other channels 2 1d ce c1
HD74ALVCH16721 6 electrical characteristics (ta = ?0 to 85 c) item symbol v cc (v) *1 min max unit test conditions input voltage v ih 2.3 to 2.7 1.7 v 2.7 to 3.6 2.0 v il 2.3 to 2.7 0.7 2.7 to 3.6 0.8 output voltage v oh min to max v cc ?.2 v i oh = ?00 m a 2.3 2.0 i oh = ? ma, v ih = 1.7 v 2.3 1.7 i oh = ?2 ma, v ih = 1.7 v 2.7 2.2 i oh = ?2 ma, v ih = 2.0 v 3.0 2.4 i oh = ?2 ma, v ih = 2.0 v 3.0 2.0 i oh = ?4 ma, v ih = 2.0 v v ol min to max 0.2 i ol = 100 m a 2.3 0.4 i ol = 6 ma, v il = 0.7 v 2.3 0.7 i ol = 12 ma, v il = 0.7 v 2.7 0.4 i ol = 12 ma, v il = 0.8 v 3.0 0.55 i ol = 24 ma, v il = 0.8 v input current i in 3.6 5 m av in = v cc or gnd i in (hold) 2.3 45 v in = 0.7 v 2.3 ?5 v in = 1.7 v 3.0 75 v in = 0.8 v 3.0 ?5 v in = 2.0 v 3.6 500 v in = 0 to 3.6 v off state output current *2 i oz 3.6 10 m av out = v cc or gnd quiescent supply current i cc 3.6 40 m av in = v cc or gnd d i cc 3.0 to 3.6 750 m av in = one input at (v cc ?.6) v, other inputs at v cc or gnd notes: 1. for conditions shown as min or max, use the appropriate values under recommended operating conditions. 2. for i/o ports, the parameter i oz includes the input leakage current.
HD74ALVCH16721 7 switching characteristics (ta = ?0 to 85 c) item symbol v cc (v) min typ max unit from (input) to (output) maximum clock frequency f max 2.5 0.2 150 mhz 2.7 150 3.3 0.3 150 propagation delay time t plh 2.5 0.2 1.0 5.6 ns clk q t phl 2.7 1.0 5.1 3.3 0.3 1.0 4.3 output enable time t zh 2.5 0.2 1.0 6.1 ns oe q t zl 2.7 1.0 5.8 3.3 0.3 1.0 4.8 output disable time t hz 2.5 0.2 1.0 5.5 ns oe q t lz 2.7 1.0 4.7 3.3 0.3 1.0 4.4 setup time t su 2.5 0.2 4.0 ns data before clk - 2.7 3.6 3.3 0.3 3.1 2.5 0.2 3.4 clken before clk - 2.7 3.1 3.3 0.3 2.7 hold time t h 2.5 0.2 0 ns data after clk - 2.7 0 3.3 0.3 0 2.5 0.2 0 clken after clk - 2.7 0 3.3 0.3 0 pulse width t w 2.5 0.2 3.3 ns 2.7 3.3 3.3 0.3 3.3 input capacitance c in 3.3 3.5 pf output capacitance c o 3.3 7.0 pf
HD74ALVCH16721 8 500 w c = 50 pf l l 500 w s1 *1 see under table gnd open load circuit for outputs note: 1. c includes probe and jig capacitance. symbol t / t plh phl open gnd 4.6 v 6.0 v t / t zh hz t / t zl lz t / t / t su h w open gnd vcc=2.7v, 3.3 0.3v vcc=2.5 0.2v ?test circuit
HD74ALVCH16721 9 t plh t phl t su t h v oh v ol t w gnd v ih gnd v ih gnd v ih gnd v ih v ref v ref v ref v ref v ref v ref v ref v ref v ref input output timing input data input input ?waveforms ?1 ?waveforms ?2 10 % 90 % tr tf 10 % 90 % 10 % 90 % tr
HD74ALVCH16721 10 v ?0.3 v oh v + 0.3 v ol t zl t lz t zh t hz v oh v ol waveform - a output control waveform - b gnd v ih ? v ol1 ? v oh1 v ref v ref v ref v ref test v ih v ref v oh1 v ol1 1.2 v 1.5 v 2.3 v 3.0 v gnd 2.3 v 2.7 v gnd vcc=2.7v, 3.3 0.3v vcc=2.5 0.2v notes: 1. all input pulses are supplied by generators having the following characteristics: prr 10 mhz, zo = 50 w , tr 2.5 ns, tf 2.5 ns. 2. waveform ?a is for an output with internal conditions such that the output is low except when disabled by the output control. 3. waveform ?b is for an output with internal conditions such that the output is high except when disabled by the output control. 4. the output are measured one at a time with one transition per measurement. ?waveforms ?3 tr tf 10 % 10 % 90 % 90 %
HD74ALVCH16721 11 package dimensions unit : mm hitachi code eiaj code jedec code ttp-56d 0.08 m 0.10 0.20 0.15 0.05 8.10 0.3 0.40 max 128 29 56 +0.1 ?.05 +0.3 ?.1 14.00 +0.3 ?.1 6.10 1.20 max 10 max 0.50 0.05 min 0.50 0.1
HD74ALVCH16721 12 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/index.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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