HD74SSTV16842 11?bit to 22?bit buffer with sstl_2 inputs and outputs ade-205-602a (z) rev.1 may 2001 description the HD74SSTV16842 is a 11?bit to 22?bit buffer designed for 2.3 v to 2.7 v vcc operation and sstl_2 data (a) inputs. features ? supports sstl_2 data inputs ? flow through architecture optimizes pcb layout function table input a output y ll hh h : high level l : low level
HD74SSTV16842 rev.1, may 2001, page 2 of 7 pin arrangement (top view) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 a4 25 40 a3 26 39 gnd 27 38 28 37 a5 gnd nc nc gnd gnd a7 a6 a8 a9 gnd a11 a10 gnd v cc v cc v ddq v ddq v ddq v ref v ddq v cc v ddq v ddq v ddq v ddq v ddq v ddq v ddq y11a y10a y9a y8a gnd gnd y7a y5a y6a y4a y3a y2a y1a y11b gnd gnd y9b y10b gnd y8b y7b y6b y5b gnd y4b y3b 29 36 a2 30 35 a1 gnd y2b 31 34 gnd 32 33 y1b
HD74SSTV16842 rev.1, may 2001, page 3 of 7 absolute maximum ratings item symbol ratings unit conditions supply voltage v cc or v ddq ?0.5 to 3.6 v input voltage *1 v i ?0.5 to v ddq +0.5 v output voltage *1, 2 v o ?0.5 to v ddq +0.5 v input clamp current i ik 50 ma v i < 0 or v i > v cc output clamp current i ok 50 ma v o < 0 or v o > v ddq continuous output current i o 50 ma v o = 0 to v ddq v cc , v ddq or gnd current / pin i cc , i ddq or i gnd 100 ma maximum power dissipation at ta = 55c (in still air) p t 1 w tssop storage temperature tstg ?65 to +150 c notes: 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. 1. the input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 2. this current will flow only when the output is in the high state and v o > v ddq . recommended operating conditions item symbol min typ max unit conditions supply voltage v cc v ddq 2.5 2.7 v output supply voltage v ddq 2.3 2.5 2.7 v reference voltage v ref 1.15 1.25 1.35 v v ref = 0.5 v ddq termination voltage v tt v ref ?40 mv v ref v ref +40 mv v input voltage v i 0?v cc v ac high level input voltage v ih v ref +310 mv ? ? v a ac low level input voltage v il ??v ref ?310 mv v a dc high level input voltage v ih v ref +150 mv ? ? v a dc low level input voltage v il ??v ref ?150 mv v a high level output current i oh ? ? ?20 ma low level output current i ol ??20 ma input transition rise or fall time ? t / ? v? ? 10 ns/v operating temperature ta 0 ? 70 c
HD74SSTV16842 rev.1, may 2001, page 4 of 7 logic diagram 45 35 v ref 16 y1a a1 32 y1b to ten other channels electrical characteristics item symbol v cc (v) min typ max unit test conditions input diode voltage v ik 2.3 ? ? ?1.2 v i in = ?18 ma 2.3 to 2.7 v cc ?0.2 ? ? i oh = ?100 a v oh 2.3 1.95 ? v ddq i oh = ?16 ma 2.3 to 2.7 ? ? 0.2 i ol = 100 a output voltage v ol 2.3 0 ? 0.35 v i ol = 16 ma input current (all inputs) i in 2.7 ? ? 5 a v in = 2.7 v or 0 quiescent supply current i cc *2 2.7 ? ? 45 ma v in = v ih(ac) or v il(ac) , i o = 0 dynamic operating per each data input i ccd *2 2.7 ? ? 20 a/ data input v i = v ih(ac) or v il(ac) , one data input switching at 50% duty cycle. output high *3 r oh 2.3 to 2.7 7 ? 20 ? i oh = ?20 ma output low *3 r ol 2.3 to 2.7 7 ? 20 ? i ol = 20 ma ? r oh ? r ol ? each separate bit *3 r o( ? ) 2.5 ? ? 4 ? i o = 20 ma, ta = 25c input capacitance data inputs c in 2.5 *1 2.5 ? 3.5 pf v i = v ref 310 mv notes: 1. all typical values are at v cc = 2.5 v, ta = 25c. 2. total i cc (max) = i cc + {i ccd (data) 11} 3. this is effective in the case that it did terminate by resistance.
HD74SSTV16842 rev.1, may 2001, page 5 of 7 switching characteristics v cc = 2.5 0.2 v item symbol min typ max unit from (input) to (output) propagation delay time *1 t plh t phl 1.6 ? 2.8 ns a y note: 1. this timing relationship is specified into test load (see waveforms ? 1) with all of the outputs switching. test circuit c = 30 pf l test point v tt *1 *2 50 ? notes: 1. c l includes probe and jig capacitance. 2. v tt = v ref = v ddq 0.5 3. input waveform : prr 10 mhz, zo = 50 ? , input slew rate = 1 v/ns 20% (unless otherwise noted.) waveforms ? 1 input output v tt v tt v ih v il v oh v ol v tt v tt t plh t phl
HD74SSTV16842 rev.1, may 2001, page 6 of 7 package dimensions *pd plating hitachi code jedec eiaj mass (reference value) ttp-64d ? conforms 0.47 g unit: mm 0.08 17.0 17.2 max 64 33 32 1 0.50 6.10 0.08 m *0.20 0.05 0.90 max 1.20 max *0.15 0.05 0.05 0.05 8.10 0.20 0? ? 8? 0.5 0.1 1.0
HD74SSTV16842 rev.1, may 2001, page 7 of 7 disclaimer 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. sales offices hitachi, ltd. semiconductor & integrated circuits nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan tel: (03) 3270-2111 fax: (03) 3270-5109 copyright ? hitachi, ltd., 2001. all rights reserved. printed in japan. hitachi asia ltd. hitachi tower 16 collyer quay #20-00 singapore 049318 tel : <65>-538-6533/538-8577 fax : <65>-538-6933/538-3877 url : http://www.hitachi.com.sg url northamerica : http://semiconductor.hitachi.com/ europe : http://www.hitachi-eu.com/hel/ecg asia : http://sicapac.hitachi-asia.com japan : http://www.hitachi.co.jp/sicd/indx.htm hitachi asia ltd. (taipei branch office) 4/f, no. 167, tun hwa north road hung-kuo building taipei (105), taiwan tel : <886>-(2)-2718-3666 fax : <886>-(2)-2718-8180 telex : 23222 has-tp url : http://www.hitachi.com.tw 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 url : http://semiconductor.hitachi.com.hk hitachi europe gmbh electronic components group dornacher stra?e 3 d-85622 feldkirchen, munich germany tel: <49> (89) 9 9180-0 fax: <49> (89) 9 29 30 00 hitachi europe ltd. electronic components group whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 585200 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: colophon 4.0
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