74F174 查看數據表（PDF） - Philips Electronics

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74F174

Hex D flip-flops

Philips Electronics 

Philips Semiconductors

Hex D flip-flop

Product specification

74F174

AC WAVEFORMS

For all waveforms, VM = 1.5V.

The shaded areas indicate when the input is permitted to change for predictable output performance.

1/fMAX

tw(L)

CP

VM

VM

tw(H)

tPHL

tPLH

Qn

VM

VM

SF00166

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

Dn

VM VM

ts(H) th(H)

CP

VM

VM VM

ts(L) th(L)

VM

SF00191

Waveform 3. Data Setup and Hold Times

MR

VM

tw(L)

CP

tPHL

VM

tREC

VM

Qn

VM

SF00158

Waveform 2. Master Reset Pulse Width, Master Reset to

Output Delay and Master Reset to Clock recovery Time

TEST CIRCUIT AND WAVEFORMS

VIN

PULSE

GENERATOR

VCC

VOUT

D.U.T.

NEGATIVE

PULSE

90%

tw

VM

10%

tTHL (tf )

VM

10%

tTLH (tr )

90%

AMP (V)

0V

RT

CL RL

Test Circuit for Totem-Pole Outputs

POSITIVE

PULSE

10%

tTLH (tr )

90%

VM

tw

tTHL (tf )

90%

VM

AMP (V)

10%

0V

DEFINITIONS:

RL = Load resistor;

see AC ELECTRICAL CHARACTERISTICS for value.

CL = Load capacitance includes jig and probe capacitance;

see AC ELECTRICAL CHARACTERISTICS for value.

RT = Termination resistance should be equal to ZOUT of

pulse generators.

Input Pulse Definition

family

74F

INPUT PULSE REQUIREMENTS

amplitude VM rep. rate

tw

tTLH

3.0V 1.5V 1MHz 500ns 2.5ns

tTHL

2.5ns

SF00006

October 7, 1988

5

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