74HC03 데이터 시트보기 (PDF) - Philips Electronics

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74HC03

Quad 2-input NAND gate

Philips Electronics 

Philips Semiconductors

Quad 2-input NAND gate

AC WAVEFORMS

Product specification

74HC/HCT03

HC: VM = 50%; VI = GND to VCC

HCT: VM = 1.3 V; VI = GND to 3 V.

Fig.6 Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.

TEST CIRCUIT AND WAVEFORMS

Fig.7 Test circuit (open drain)

Fig.8 Input pulse definitions.

Definitions for Figs. 7, 8:

CL = load capacitance including jig and probe

capacitance

(see AC CHARACTERISTICS for values).

RT = termination resistance should be equal to the

output impedance ZO of the pulse generator.

tr = tf = 6 ns; when measuring fmax, there is no

constraint on tr, tf with 50% duty factor.

FAMILY AMPLITUDE

74HC VCC

74HCT 3.0 V

VM

50%

1.3 V

tr; tf

fmax;

PULSE

WIDTH

OTHER

< 2 ns

6 ns

< 2 ns

6 ns

December 1990

7

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