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<strong>ITT</strong>54195, <strong>ITT</strong>74195<br />

4-81T PARALLEL-ACCESS SHI FT REG ISTERS<br />

ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range<br />

(unless otherwise noted)<br />

Parameter Min Typ' Max Unit Test Conditions 2<br />

VIH High-level input voltage 2 V<br />

VIL Low-level input voltage 0.8 V<br />

VI Inpllt clamp voltage -1.5 V Vee = MIN. II = -12mA<br />

VOH H igh'level output voltage 2.4 V Vee = MIN. VIH = 2V.<br />

VIL = 0.8V. 10H = -800uA<br />

VOL Low-level output voltage OA V Vee = MIN. VIH = 2V.<br />

VIL =0.8V.IOL = 16mA<br />

II Input current at maximum input 1 mA Vee = MAX. VI = 5.5V<br />

voltage<br />

IIH High-level input current 40 uA Vee = MAX. VI = 2.4V<br />

IlL Low-level input current -1.6 mA Vee = MAX. VI ~ OAV<br />

lOS Short-circuit output current 3 -20 -57 mA Vee = MAX I<strong>ITT</strong>54195<br />

-18 -57<br />

llTT74195<br />

lee Supply current 39 63 mA Vee = MAX. See Note 2<br />

Note:<br />

2. With all outputs open. shift/load grounded, and 4.5V applied to the J, K, and data inputs, lee is measured<br />

by applying a momentary ground, followed by 4.5V, to clear, and then applying a momentary ground, followed<br />

by 4.5V, to clock.<br />

, All typical values are at Vee = 5V, T A = 25°e.<br />

2 For conditions shown as M IN or MAX, use the appropriate value specified under recommended operating conditions<br />

for the applicable device type.<br />

3 Not more than one output should be shorted at & time.<br />

SWITCHING CHARACTERISTICS. Vee = 5V, TA = 25°e, N = 10<br />

.<br />

Parameter Min Typ Max Unit Test Conditions<br />

fmax Maximum input clock frequency 30 39 MHz eL = 15pF, RL = 400.n.<br />

tpHL Propagation delay time, 19 30 ns eL = 15pF, RL = 40011<br />

high-to-Iow-Ievel output from<br />

clear<br />

tpLH Propagation delay time, 6 14 22 ns eL = 15pF, RL = 40011<br />

low-to-high-Ievel output from<br />

clock<br />

tpHL Propagation delay time, 7 17 26 ns eL = 15pF, RL = 400.n.<br />

high-to-Iow-Ievel output from<br />

clock<br />

3-244

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