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HD74LV221A dual monostable multivibrators ade-205-271c (z) 4th edition january 2001 description the HD74LV221A features output pulse-duration control by three methods. in the first method, the a input is low and the b input goes high. in the second method, the b input is high and the a input goes low. in the third method, the a input is low, the b input is high, and the clear ( clr ) input goes high. the basic pulse duration is programmed by selecting external resistance and capacitance values. the external timing capacitor must be connected between cext and rext/cext (positive) and an external resistor connected between rext/cext and v cc . to obtain variable pulse durations, connect an external variable resistance between rext/cext and vcc. pulse duration can be reduced by taking clr low. features ? v cc = 2.0 v to 5.5 v operation ? all inputs v ih (max.) = 5.5 v (@v cc = 0 v to 5.5 v) ? all outputs v o (max.) = 5.5 v (@v cc = 0 v) ? output current 6 ma (@v cc = 3.0 v to 3.6 v), 12 ma (@v cc = 4.5 v to 5.5 v)
HD74LV221A rev.4, jan. 2001, page 2 of 18 function table inputs outputs clr clr clr clr a a a a bq q q q q lxxlh xhxlh xxllh hl h h lh note: h: high level l: low level x: immaterial : low to high transition : high to low transition : high level pulse : low level pulse pin arrangement v cc 1rext / cext 1cext 1q 2b 2 2 1 1b 1 1 2q 2cext 2rext / cext 2 (top view) 11 12 13 14 15 16 1 2 3 4 5 6 7 gnd 8 9 10
HD74LV221A rev.4, jan. 2001, page 3 of 18 absolute maximum ratings item symbol ratings unit conditions supply voltage range v cc ?0.5 to 7.0 v input voltage range * 1 v i ?0.5 to 7.0 v output voltage range * 1, 2 v o ?0.5 to v cc + 0.5 v output: h or l ?0.5 to 7.0 v cc : off input clamp current i ik ?20 ma v i < 0 output clamp current i ok 50 ma v o < 0 or v o > v cc continuous output current i o 25 ma v o = 0 to v cc continuous current through v cc or gnd i cc or i gnd 50 ma maximum power dissipation at ta = 25c (in still air) * 3 p t 785 mw sop 500 tssop storage temperature tstg ?65 to 150 c notes: 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. 1. the input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. this value is limited to 5.5 v maximum. 3. the maximum package power dissipation was calculated using a junction temperature of 150c.
HD74LV221A rev.4, jan. 2001, page 4 of 18 recommended operating conditions item symbol min typ max unit conditions supply voltage range v cc 2.0 ? 5.5 v input voltage range v i 0? 5.5 v output voltage range v o 0? v cc v output current i oh ? ? ?50 av cc = 2.0 v ?? ?2 ma v cc = 2.3 to 2.7 v ?? ?6 v cc = 3.0 to 3.6 v ? ? ?12 v cc = 4.5 to 5.5 v i ol ?? 50 av cc = 2.0 v ?? 2 ma v cc = 2.3 to 2.7 v ?? 6 v cc = 3.0 to 3.6 v ?? 12 v cc = 4.5 to 5.5 v input transition rise or fall rate ? t / ? v 0 ? 200 ns/v v cc = 2.3 to 2.7 v 0 ? 100 v cc = 3.0 to 3.6 v 0? 20 v cc = 4.5 to 5.5 v external timing registance rext 5 ? ? k ? v cc = 2.0 v 1? ? v cc 2.3 v external timing capacitance cext ? unlimited ? f power-up ramp rate ? t / ? v cc 1? ? ms/v operating free-air temperature ta ?40 ? 85 c note: unused or floating inputs must be held high or low. logic diagram b q q clr
HD74LV221A rev.4, jan. 2001, page 5 of 18 dc electrical characteristics ta = ?40 to 85c item symbol v cc (v) * min typ max unit test conditions input voltage v ih 2.0 1.5 ? ? v 2.3 to 2.7 v cc 0.7 ? ? 3.0 to 3.6 v cc 0.7 ? ? 4.5 to 5.5 v cc 0.7 ? ? v il 2.0 ? ? 0.5 2.3 to 2.7 ? ? v cc 0.3 3.0 to 3.6 ? ? v cc 0.3 4.5 to 5.5 ? ? v cc 0.3 output voltage v oh min to max v cc ? 0.1 ? ? v i ol = ?50 a 2.3 2.0 ? ? i ol = ?2 ma 3.0 2.48 ? ? i ol = ?6 ma 4.5 3.8 ? ? i ol = ?12 ma v ol min to max ??0.1vi ol = 50 a 2.3 ? ? 0.4 i ol = 2 ma 3.0 ? ? 0.44 i ol = 6 ma 4.5 ? ? 0.55 i ol = 12 ma input current i in 0 to 5.5 ? ? 1 av in = 5.5 v or gnd input current rext / cext i in 5.5 ? ? 2.5 av in = v cc or gnd quiescent supply current i cc 5.5 ? ? 20 av in = v cc or gnd, i o = 0 active state supply current (per circuit) ? i cc 2.3 ? ? 220 av in = v cc or gnd rext/cext = 0.5 v cc 3.0 280 4.5 650 5.5 975 output leakage current i off 0? ?5 av o = 5.5 v input capacitance c in 3.3 ? 4.0 ? pf v i = v cc or gnd note: for conditions shown as min or max, use the appropriate values under recommended operating conditions.
HD74LV221A rev.4, jan. 2001, page 6 of 18 switching characteristics v cc = 2.5 0.2 v ta = 25c ta = ?40 to 85c item symbol min typ max min max unit test conditions from (input) to (output) propa- gation delay time t plh t phl ? 13.3 31.4 1.0 37.0 ns c l = 15 pf a or b q or q ? 15.5 36.0 1.0 42.0 c l = 50 pf ? 10.9 25.0 1.0 29.5 c l = 15 pf clr q or q ? 12.5 32.8 1.0 34.5 c l = 50 pf ? 13.5 33.4 1.0 39.0 c l = 15 pf clr q or q ? 15.9 38.0 1.0 44.0 c l = 50 pf (trigger) pulse width t w 6.0??6.5 ? ns a , b or clr output pulse width t wq ? 170 260 ? 320 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 sc l = 50 pf, cext = 0.01 f, rext = 10 k ? 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? ? t wq ?1 ? ? ? % c l = 50 pf
HD74LV221A rev.4, jan. 2001, page 7 of 18 switching characteristics (cont) v cc = 3.3 0.3 v ta = 25c ta = ?40 to 85c item symbol min typ max min max unit test conditions from (input) to (output) propa- gation delay time t plh t phl ? 9.9 20.6 1.0 24.0 ns c l = 15 pf a or b q or q ? 11.6 24.1 1.0 27.5 c l = 50 pf ? 8.3 15.8 1.0 18.5 c l = 15 pf clr q or q ? 9.7 19.3 1.0 22.0 c l = 50 pf ? 9.9 22.4 1.0 26.0 c l = 15 pf clr q or q ? 11.6 25.9 1.0 29.5 c l = 50 pf (trigger) pulse width t w 5.0??5.0 ? ns a , b or clr output pulse width t wq ? 150 240 ? 300 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 sc l = 50 pf, cext = 0.01 f, rext = 10 k ? 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? ? t wq ?1 ? ? ? % c l = 50 pf
HD74LV221A rev.4, jan. 2001, page 8 of 18 switching characteristics (cont) v cc = 5.0 0.5 v ta = 25c ta = ?40 to 85c item symbol min typ max min max unit test conditions from (input) to (output) propa- gation delay time t plh t phl ? 7.3 12.0 1.0 14.0 ns c l = 15 pf a or b q or q ? 8.7 14.0 1.0 16.0 c l = 50 pf ? 6.2 9.4 1.0 11.0 c l = 15 pf clr q or q ? 7.4 11.4 1.0 13.0 c l = 50 pf ? 7.3 12.9 1.0 15.0 c l = 15 pf clr q or q ? 8.6 14.9 1.0 17.0 c l = 50 pf (trigger) pulse width t w 5.0??5.0 ? ns a , b or clr output pulse width t wq ? 140 200 ? 240 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 sc l = 50 pf, cext = 0.01 f, rext = 10 k ? 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? ? t wq ? 1 ? ? ? % cl = 50 pf
HD74LV221A rev.4, jan. 2001, page 9 of 18 operating characteristics c l = 50 pf ta = 25c item symbol v cc (v) min typ max unit test conditions power dissipation capacitance c pd 3.3 ? 74.0 ? pf f = 10 mhz 5.0 ? 86.0 ? test circuit l c = 15 pf or 50 pf l c = 15 pf or 50 pf q cext cext rext/ cext rext ?+ output b cc v cc v output gnd input cc v cext = 28 pf or 100 pf or 0.01 f or 0.1 f rext = 1 k ? or 2 k ? or 10 k ? refer to func- tion table note : c includes the probe and jig capacitance. l
HD74LV221A rev.4, jan. 2001, page 10 of 18 timing diagram b q rext/ cext t w t w t rr t w +t rr caution in use in order to prevent any malfunctions due to noise, connect a high frequency performance capacitor between vcc and gnd, and keep the wiring between the external components and cext, rext/cext pins as short as possible. large values of cext may cause problems when powering down the HD74LV221A because of the amount of energy stored in the capacitor. when a system containing this device is powered down, the capacitor may discharge from vcc through the protection diodes at pin 7 or pin 15. current through the input protection diodes must be limited to 20 ma; therefore, the turn-off time of the vcc power supply must not be faster than t = vcc ? cext/(20 ma). for example, if vcc = 5 v and cext = 22 f, the vcc supply must turn off no faster than t = (5 v) ? (22 f)/ 20 ma = 5.5 ms. this is usually not a problem because power supplies are heavily filtered and cannot discharge at this rate. when a more rapid decrease of vcc to zero volts occurs, the HD74LV221A may sustain damage. to avoid this possibility, use an external calmping diode. the input pins for unused circuit should be used under conditions to fix the outputs to avoid malfunction cased by noises. also, it's recommended that rext / cext terminals are open and external parts are not connected to.
HD74LV221A rev.4, jan. 2001, page 11 of 18 gnd v cc gnd v cc gnd v cc 10% 90% 50% ? waveform ? 1 input input input b output q output t f t r 10% 90% 50% t r v oh v ol v oh v ol t (trigger) plh t phl t plh t (l) w cc 50% v 10% 90% 50% 50% t r 90% 50% 10% 10% 90% t f cc 50% v cc 50% v cc 50% v t (trigger) phl
HD74LV221A rev.4, jan. 2001, page 12 of 18 1. input waveform: prr 1 mhz, zo = 50 ? , t 3 ns, t 3 ns 2. the output are measured one at a time with one transition per measurement. notes: rf gnd v cc gnd v cc ? waveform ? 2 input input b output q output v oh v ol v oh v ol t (out) w t r t f t (l) w t (h) w t (h) w t (l) w 10% 90% 50% 10% 10% 10% 90% 90% 90% 50% 50% 50% 50% t r t f t r 90% 50% 10% 10% 90% t f cc 50% v cc 50% v cc 50% v cc 50% v
HD74LV221A rev.4, jan. 2001, page 13 of 18 application data 10 1.0 10.0 100.0 1000.0 10000.0 0.1 2 10 3 10 4 10 5 10 6 10 7 wq timing capacitance cext (pf) output pulse width t ( s) vcc = 2.5 v 1 k ? rext 10 k ? 100 k ? 1 m ?
HD74LV221A rev.4, jan. 2001, page 14 of 18 10 1.0 10.0 100.0 1000.0 10000.0 0.1 2 10 3 10 4 10 5 10 6 10 7 vcc = 3.3 v wq timing capacitance cext (pf) output pulse width t ( s) 1 k ? rext 10 k ? 100 k ? 1 m ? 10 1.0 10.0 100.0 1000.0 10000.0 0.1 2 10 3 10 4 10 5 10 6 10 7 vcc = 5.0 v wq timing capacitance cext (pf) output pulse width t ( s) 1 k ? rext 10 k ? 100 k ? 1 m ?
HD74LV221A rev.4, jan. 2001, page 15 of 18 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0 5.5 0.8 0.9 1.0 1.1 1.2 1.3 1.4 rext = 2 k ? cc supply voltage v (v) coefficient of output pulse width k 1000 pf 10000 pf 100000 pf 1000000 pf cext 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0 5.5 0.8 0.9 1.0 1.1 1.2 1.3 1.4 rext = 10 k ? cc supply voltage v (v) coefficient of output pulse width k 1000 pf 10000 pf 100000 pf 1000000 pf cext
HD74LV221A rev.4, jan. 2001, page 16 of 18 package dimensions hitachi code jedec eiaj mass (reference value) fp-16da ? conforms 0.24 g unit: mm * dimension including the plating thickness base material dimension * 0.22 ?0.05 * 0.42 ?0.08 0.12 0.15 m 2.20 max 5.5 10.06 0.80 max 16 9 1 8 10.5 max + 0.20 ? 0.30 7.80 0.70 ?0.20 0 ? ? 8 ? 0.10 ?0.10 1.15 1.27 0.40 ?0.06 0.20 ?0.04
HD74LV221A rev.4, jan. 2001, page 17 of 18 hitachi code jedec eiaj mass (reference value) fp-16dn conforms conforms 0.15 g unit: mm * dimension including the plating thickness base material dimension 1.27 16 9 1 8 0.15 0.25 m 1.75 max 3.95 * 0.22 0.03 9.9 0 ? ? 8 ? 10.3 max + 0.10 ? 0.30 6.10 + 0.67 ? 0.20 0.60 + 0.11 ? 0.04 0.14 * 0.42 0.08 0.635 max 0.40 0.06 0.20 0.03 1.08 hitachi code jedec eiaj mass (reference value) ttp-16da ? ? 0.05 g unit: mm * dimension including the plating thickness base material dimension 0.50 0.10 0 ? ? 8 ? * 0.17 0.05 6.40 0.20 0.10 1.10 max 0.13 m 0.65 18 16 9 4.40 5.00 5.30 max 0.07 + 0.03 ? 0.04 0.65 max 1.0 0.20 0.06 + 0.08 ? 0.07 * 0.22 0.15 0.04
HD74LV221A rev.4, jan. 2001, page 18 of 18 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 in 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-safe devices, so that the equipment incorporating the 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: tokyo (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://www.hitachi.com.hk hitachi europe ltd. electronic components group. whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 585160 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: colophon 2.0

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