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rev.6.00 jun. 23, 2004 page 1 of 13 hd74lv221a dual monostable multivibrators rej03d0326?0600z (previous ade-205-271d (z)) rev.6.00 jun. 23, 2004 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 va lues. 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 v cc . 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) ? ordering information part name package type package code package abbreviation taping abbreviation (quantity) hd74lv221afpel sop?16 pin (jeita) fp?16dav fp el (2,000 pcs/reel) hd74lv221arpel sop?16 pin (jedec) fp?16dnv rp el (2,500 pcs/reel) hd74lv221atell tssop?16 pin ttp?16dav t ell (2,000 pcs/reel) note: please consult the sales office for the above package availability. function table inputs outputs clr a bq q lxxlh xhxl h 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
hd74lv221a rev.6.00 jun. 23, 2004 page 2 of 13 pin arrangement v cc 1rext / cext 1cext 1q 2b 2 q 2 clr 1 a 1b 1 clr 1 q 2q 2cext 2rext / cext 2 a (top view) 11 12 13 14 15 16 1 2 3 4 5 6 7 gnd 89 10 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 ?0.5 to v cc + 0.5 output: h or l output voltage range* 1, 2 v o ?0.5 to 7.0 v 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 785 sop maximum power dissipation at ta = 25c (in still air)* 3 p t 500 mw 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.6.00 jun. 23, 2004 page 3 of 13 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?5.5v output voltage range v o 0?v cc v ? ? ?50 av cc = 2.0 v ???2 v cc = 2.3 to 2.7 v ???6 v cc = 3.0 to 3.6 v i oh ? ? ?12 ma v cc = 4.5 to 5.5 v ??50 av cc = 2.0 v ??2 v cc = 2.3 to 2.7 v ??6 v cc = 3.0 to 3.6 v output current i ol ??12 ma v cc = 4.5 to 5.5 v 0 ? 200 v cc = 2.3 to 2.7 v 0 ? 100 v cc = 3.0 to 3.6 v input transition rise or fall rate ? t / ? v 0?20 ns/v v cc = 4.5 to 5.5 v 5?? v cc = 2.0 v external timing resistance rext 1?? k ? 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 a b c lr q q q clr q
hd74lv221a rev.6.00 jun. 23, 2004 page 4 of 13 dc electrical characteristics ta = ?40 to 85c item symbol v cc (v) min typ max unit test conditions 2.0 1.5 ? ? 2.3 to 2.7 v cc 0.7 ? ? 3.0 to 3.6 v cc 0.7 ? ? v ih 4.5 to 5.5 v cc 0.7 ? ? 2.0 ? ? 0.5 2.3 to 2.7 ? ? v cc 0.3 3.0 to 3.6 ? ? v cc 0.3 input voltage v il 4.5 to 5.5 ? ? v cc 0.3 v min to max v cc ? 0.1 ? ? i oh = ?50 a 2.3 2.0 ? ? i oh = ?2 ma 3.0 2.48 ? ? i oh = ?6 ma v oh 4.5 3.8 ? ? v i oh = ?12 ma min to max ? ? 0.1 i ol = 50 a 2.3 ? ? 0.4 i ol = 2 ma 3.0 ? ? 0.44 i ol = 6 ma output voltage v ol 4.5 ? ? 0.55 v 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 2.3 ? ? 220 3.0 280 4.5 650 active state supply current (per circuit) ? i cc 5.5 975 av in = v cc or gnd rext/cext = 0.5 v cc output leakage current i off 0??5 av i or v o = 0 v to 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 appr opriate values under recommended operating conditions.
hd74lv221a rev.6.00 jun. 23, 2004 page 5 of 13 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) ? 13.3 31.4 1.0 37.0 c l = 15 pf ? 15.5 36.0 1.0 42.0 c l = 50 pf a or b q or q ? 10.9 25.0 1.0 29.5 c l = 15 pf ? 12.5 32.8 1.0 34.5 c l = 50 pf clr q or q ? 13.5 33.4 1.0 39.0 c l = 15 pf propagation delay time t plh t phl ? 15.9 38.0 1.0 44.0 ns c l = 50 pf clr (trigger) q or q pulse width t w 6.0 ? ? 6.5 ? ns a , b or clr ? 170 260 ? 320 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 s c l = 50 pf, cext = 0.01 f, rext = 10 k ? t wq 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? output pulse width ? t wq ?1???%c l = 50 pf 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) ? 9.9 20.6 1.0 24.0 c l = 15 pf ? 11.6 24.1 1.0 27.5 c l = 50 pf a or b q or q ? 8.3 15.8 1.0 18.5 c l = 15 pf ? 9.7 19.3 1.0 22.0 c l = 50 pf clr q or q ? 9.9 22.4 1.0 26.0 c l = 15 pf propagation delay time t plh t phl ? 11.6 25.9 1.0 29.5 ns c l = 50 pf clr (trigger) q or q pulse width t w 5.0 ? ? 5.0 ? ns a , b or clr ? 150 240 ? 300 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 s c l = 50 pf, cext = 0.01 f, rext = 10 k ? t wq 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? output pulse width ? t wq ?1?? ? % c l = 50 pf
hd74lv221a rev.6.00 jun. 23, 2004 page 6 of 13 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) ? 7.3 12.0 1.0 14.0 c l = 15 pf ? 8.7 14.0 1.0 16.0 c l = 50 pf a or b q or q ? 6.2 9.4 1.0 11.0 c l = 15 pf ? 7.4 11.4 1.0 13.0 c l = 50 pf clr q or q ? 7.3 12.9 1.0 15.0 c l = 15 pf propagation delay time t plh t phl ? 8.6 14.9 1.0 17.0 ns c l = 50 pf clr (trigger) q or q pulse width t w 5.0 ? ? 5.0 ? ns a , b or clr ? 140 200 ? 240 ns c l = 50 pf, cext = 28 pf, rext = 2 k ? 90 100 110 90 110 s c l = 50 pf, cext = 0.01 f, rext = 10 k ? t wq 0.9 1.0 1.1 0.9 1.1 ms c l = 50 pf, cext = 0.1 f, rext = 10 k ? output pulse width ? t wq ? 1 ? ? ? % cl = 50 pf operating characteristics c l = 50 pf ta = 25c item symbol v cc (v) min typ max unit test conditions 3.3 ? 74.0 ? power dissipation capacitance c pd 5.0 ? 86.0 ? pf f = 10 mhz test circuit l c = 15 pf or 50 pf l c = 15 pf or 50 pf q cext cext rext/ cext rext ?+ q output a clr 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 function table note : c includes the probe and jig capacitance. l
hd74lv221a rev.6.00 jun. 23, 2004 page 7 of 13 timing diagram a clr 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.6.00 jun. 23, 2004 page 8 of 13 gnd v cc gnd v cc gnd v cc 10% 90% 50% ? waveform ? 1 input a input clr input b output q output q 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.6.00 jun. 23, 2004 page 9 of 13 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: r f gnd v cc gnd v cc ? waveform ? 2 input a input b output q output q 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 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.6.00 jun. 23, 2004 page 10 of 13 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.6.00 jun. 23, 2004 page 11 of 13 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.6.00 jun. 23, 2004 page 12 of 13 package dimensions package code jedec jeita mass (reference value) fp-16dav ? conforms 0.24 g *ni/pd/au plating *0.20 0.05 *0.40 0.06 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 as of january, 2003 unit: mm package code jedec jeita mass (reference value) fp-16dnv conforms conforms 0.15 g *ni/pd/au plating 1.27 16 9 1 8 0.15 0.25 m 1.75 max 3.95 *0.20 0.05 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 *0.40 0.06 0.635 max 1.08 as of january, 2003 unit: mm
hd74lv221a rev.6.00 jun. 23, 2004 page 13 of 13 package code jedec jeita mass (reference value) ttp-16dav ? ? 0.05 g *ni/pd/au plating 0.50 0.10 0? ? 8? *0.15 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 0.05 as of january, 2003 unit: mm
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