technical data IW4520B dual up-counter high-voltage silicon-gate cmos ordering information IW4520Bn plastic IW4520Bd soic t a = -55 to 125 c for all packages the IW4520B dual binary up-counter consists two identical, internally synchronous 4-stage counters. the counter stages are d-type flip-flops having interchangeable clock and enable lines for incrementing on either the positive-going or negative-going transition. for single-unit operation the enable input is maintained high and the counter advances on each positive-goi ng transition of the clock. the counters are cleared by high levels on their reset lines. the counter can be cascaded in the ripple mode by connecting q4 to the enable input of the subsequent counter while the clock input of the latter is held low. ? operating voltage range: 3.0 to 18 v ? maximum input current of 1 a at 18 v over full package-temperature range; 100 na at 18 v and 25 c ? noise margin (over full p ackage temperature range): 1.0 v min @ 5.0 v supply 2.0 v min @ 10.0 v supply 2.5 v min @ 15.0 v supply pin assignment logic diagram pin 16=v cc pin 8= gnd function table inputs outputs clock enable reset mode h l rev. 00 increment counter l l increment counter x l no change x l no change l l no change h l no change x x h q1 thru q4=l x = don?t care
IW4520B rev. 00 maximum ratings * symbol parameter value unit v cc dc supply voltage (referenced to gnd) -0.5 to +20 v v in dc input voltage (referenced to gnd) -0.5 to v cc +0.5 v v out dc output voltage (referenced to gnd) -0.5 to v cc +0.5 v i in dc input current, per pin 10 ma p d power dissipation in still air, plastic dip+ soic package+ 750 500 mw p d power dissipation per output transistor 100 mw tstg storage temperature -65 to +150 c t l lead temperature, 1 mm from case for 10 seconds (plastic dip or soic package) 260 c * maximum ratings are those values beyond which damage to the device may occur. functional operation should be restricted to the reco mmended operating conditions. +derating - plastic dip: - 10 mw/ c from 65 to 125 c soic package: : - 7 mw/ c from 65 to 125 c recommended operating conditions symbol parameter min max unit v cc dc supply voltage (referenced to gnd) 3.0 18 v v in , v out dc input voltage, output voltage (referenced to gnd) 0 v cc v t a operating temperature, all package types -55 +125 c this device contains protection circuitry to guard agains t damage due to high static voltages or electric fields. however, precautions must be taken to avoid applications of any voltage highe r than maximum rated voltages to this high-impedance circuit. for proper operation, v in and v out should be constrained to the range gnd (v in or v out ) v cc . unused inputs must always be tied to an appropriate logic voltage level (e.g., either gnd or v cc ). unused outputs must be left open.
IW4520B rev. 00 dc electrical characteristics (voltages referenced to gnd) v cc guaranteed limit symbol parameter test conditions v -55 c 25 c 125 c unit v ih minimum high-level input voltage v out = 0.5 v or v cc - 0.5v v out = 1.0 v or v cc - 1.0 v v out = 1.5 v or v cc - 1.5v 5.0 10 15 3.5 7 11 3.5 7 11 3.5 7 11 v v il maximum low - level input voltage v out = 0.5 v or v cc - 0.5v v out = 1.0 v or v cc - 1.0 v v out = 1.5 v or v cc - 1.5v 5.0 10 15 1.5 3 4 1.5 3 4 1.5 3 4 v v oh minimum high-level output voltage v in =gnd or v cc 5.0 10 15 4.95 9.95 14.95 4.95 9.95 14.95 4.95 9.95 14.95 v v ol maximum low-level output voltage v in =gnd or v cc 5.0 10 15 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 v i in maximum input leakage current v in = gnd or v cc 18 0.1 0.1 1.0 a i cc maximum quiescent supply current (per package) v in = gnd or v cc 5.0 10 15 20 5 10 20 100 5 10 20 100 150 300 600 3000 a i ol minimum output low (sink) current v in = gnd or v cc u ol =0.4 v u ol =0.5 v u ol =1.5 v 5.0 10 15 0.64 1.6 4.2 0.51 1.3 3.4 0.36 0.9 2.4 ma i oh minimum output high (source) current v in = gnd or v cc u oh =2.5 v u oh =4.6 v u oh =9.5 v u oh =13.5 v 5.0 5.0 10 15 -2 -0.64 -1.6 -4.2 -1.6 -0.51 -1.3 -3.4 -1.15 -0.36 -0.9 -2.4 ma
IW4520B ac electrical characteristics (c l =50pf, r l =200k , input t r =t f =20 ns) v cc guaranteed limit symbol parameter v unit -55 c 25 c 125 c f max maximum clockfrequency, (figure 1) 5.0 10 15 1.5 3 4 1.5 3 4 0.75 1.5 2 mhz t phl , t plh maximum propagation delay, clock or enable to output (figures 1,3) 5.0 10 15 560 230 160 560 230 160 1120 460 320 ns t phl maximum propagation delay, reset to output (figure 2) 5.0 10 15 650 225 170 650 225 170 1300 450 340 ns t thl , t tlh maximum output transition time, any output (figure 1) 5.0 10 15 200 100 80 200 100 80 400 200 160 ns c in maximum input capacitance - 7.5 pf timing requirements (c l =50pf, r l =200 k , input t r =t f =20 ns) rev. 00 v cc guaranteed limit symbol parameter v unit -55 c 25 c 125 c t w minimum pulse width, clock (figure 1) 5.0 10 15 200 100 70 200 100 70 400 200 140 ns t w minimum pulse width, reset (figure 2) 5.0 10 15 250 110 80 250 110 80 500 220 160 ns t minimum pulse width, enable (figure 3) 5.0 10 15 400 200 140 400 200 140 800 400 280 ns w t , t maximum input rise and fall times (figure 1) 5.0 10 15 15 5 5 15 5 5 15 5 5 s r f figure 1. switching waveforms figure 2. switching waveforms
IW4520B figure 3. switching waveforms timing diagram expanded logic diagram (1/2 of the device) rev. 00
IW4520B n suffix plastic dip (ms - 001bb) symbol min max a 18.67 19.69 b 6.1 7.11 c 5.33 d 0.36 0.56 f 1.14 1.78 g h j 0 10 k 2.92 3.81 notes: l 7.62 8.26 1. dimensions ?a?, ?b? do not include mold flash or protrusions. m 0.2 0.36 maximum mold flas h or protrus ions 0.25 mm (0.010) per s ide. n 0.38 d suffix soic (ms - 012ac) symbol min max a 9.8 10 b 3.8 4 c 1.35 1.75 d 0.33 0.51 f 0.4 1.27 g h j 0 8 notes: k 0.1 0.25 1. dimensions a and b do not include mold flash or protrusion. m 0.19 0.25 2. maximum mold flas h or protrus ion 0.15 mm (0.006) per s ide p 5.8 6.2 for a; for b ? 0.25 mm (0.010) per s ide. r 0.25 0.5 5.72 2.54 7.62 1.27 dimens ion, mm dimens ion, mm a b h c k c m j f m p g d r x 45 seating plane 0.25 (0.010) m t -t- 1 16 8 9 l h m j a b f g d seating plane n k 0.25 (0.010) m t -t- c 1 16 8 9 rev. 00
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