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ITT - Index of

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CIRCUIT TYPES <strong>ITT</strong>54H30, <strong>ITT</strong>74H30<br />

8-INPUT POSITIVE NAND GATES<br />

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

(unless otherwise noted)<br />

Parameter Min Typ 1 Max Unit Test Conditions 2<br />

Vin (1 ) Logical 1 input voltage 2 V<br />

required at all input<br />

terminals to ensure logical 0<br />

level at output<br />

Vin(O) Logical 0 input voltage 0.8 V<br />

required at any input<br />

terminal to ensure logical 1<br />

level at output<br />

V1 Input Clamp Voltage -1.5 V Vcc = Min Ii = -8 mA<br />

Vout(1 ) Logical 1 output voltage 2.4 V Vee = MIN. Vin = 0.8 V.<br />

Iload = -500 uA<br />

Vout(O) Logical 0 output voltage 0.4 V Vee = MIN. Vin = 2 V.<br />

Isink = 20 mA<br />

lin(O) Logical 0 level input current -2 mA Vee = MAX. Vin = 0.4 V<br />

(each input)<br />

lin( 1) Logical 1 level input current 50 uA Vee = MAX. Vin = 2.4 V<br />

(each input)<br />

1 mA Vee = MAX. Vin = 5.5 V<br />

I<br />

I<br />

I<br />

•I<br />

lOS Short-circuit output current 3 -40 -100 mA Vee = MAX<br />

lee(O) Logical 0 level supply current 6.5 10 mA Vee = MAX. Vin = 4.5 V<br />

lee(1) Logical 1 level supply current 2.5 4.2 mA Vee = MAX. Vin = 0<br />

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

tpdO<br />

Parameter Min Typ Max Unit Test Conditions<br />

Propagation delay time to<br />

logical 0 level<br />

8.9 12 ns eL = 25 pF. R L = 280 S1<br />

tpd1 Propagation delay time to 6.8 10 ns eL = 25 pF. RL = 280 S1<br />

logical 1 level<br />

1 All typical values are atVcc = 5 V. TA = 25°C.<br />

2 For conditions shown as MIN or MAX. use the appropriate value specified under recommended operating conditions<br />

for the applicable device type.<br />

3 Duration <strong>of</strong> short-circuit test should not exceed 1 second.<br />

3-263

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