74F841(2004) 데이터 시트보기 (PDF) - Philips Electronics

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74F841
(Rev.:2004)

10-bit bus interface latches, non-inverting/inverting (3-State)

Philips Electronics 

Philips Semiconductors

10-bit bus interface latches, non-inverting/inverting

(3-State)

Product data

74F841/74F842

TEST CIRCUIT AND WAVEFORMS

VCC

VIN

PULSE

GENERATOR

VOUT

RL

D.U.T.

RT

CL RL

Test Circuit for 3-State Outputs

SWITCH POSITION

TEST

tPLZ

tPZL

All other

SWITCH

closed

closed

open

7.0 V

NEGATIVE

PULSE

90%

POSITIVE

PULSE

10%

tw

VM

10%

tTHL (tf )

VM

10%

tTLH (tr )

tTLH (tr )

90%

VM

tw

tTHL (tf )

90%

VM

Input Pulse Definition

90%

AMP (V)

0V

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 REQUIREMENTS

family

amplitude VM rep. rate

tw

tTLH

74F

3.0 V 1.5 V 1 MHz 500 ns 2.5 ns

tTHL

2.5 ns

SF00777

2004 Jan 23

9

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