Philips Semiconductors

Product specification

74F862, 74F863

Bus transceivers (3-State)

2000 Mar 24

8

AC WAVEFORMS

Bn, An

An, Bn

SF00202

Waveform 1. Propagation Delay for Non-inverting Output

SF00534

Waveform 2. Propagation Delay for Inverting Output

SF00535

0 V

Waveform 3. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

SF00536

Waveform 4. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

NOTE: For all waveforms, VM = 1.5V.

TEST CIRCUITS AND WAVEFORMS

tw

90%

VM

10%

90%

VM

10%

90%

VM

10%

90%

VM

10%

NEGATIVE

PULSE

POSITIVE

PULSE

tw

AMP (V)

0V

0V

tTHL (tf )

INPUT PULSE REQUIREMENTS

rep. rate

1MHz

500ns

2.5ns

2.5ns

Input Pulse Definition

VCC

family

74F

D.U.T.

PULSE

GENERATOR

RL

CL

RT

VIN

VOUT

Test Circuit for Open Collector Outputs

DEFINITIONS:

see AC electrical characteristics for value.

see AC electrical characteristics for value.

pulse generators.

tTHL (tf )

tTLH (tr )

tTLH (tr )

AMP (V)

amplitude

3.0V

1.5V

RL

7.0V

SF00128

TEST

SWITCH

closed

closed

All other

open

SWITCH POSITION