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MB2646BB

Dual octal bus transceiver/registers (3-State)

Philips Electronics 

Philips Semiconductors Products

Dual octal bus transceiver/registers (3-State)

Product specification

MB2646

VCC

VIN

VOUT

RL

PULSE

GENERATOR

D.U.T

RT

CL

RL

Test Circuit for 3-State Outputs

SWITCH POSITION

TEST SWITCH

tPLZ

tPZL

All other

closed

closed

open

7.0V

90%

NEGATIVE

PULSE

POSITIVE

PULSE

10%

VM

10%

tW

VM

10%

tTHL (tF)

tTLH (tR)

90%

VM

90%

VM

tW

VM = 1.5V

Input Pulse Definition

90%

AMP (V)

0V

tTLH (tR)

tTHL (tF)

AMP (V)

10%

0V

DEFINITIONS

RL = Load resistor; see AC CHARACTERISTICS for value.

CL = Load capacitance includes jig and probe capacitance;

see AC CHARACTERISTICS for value.

RT = Termination resistance should be equal to ZOUT of

pulse generators.

FAMILY

MB

INPUT PULSE REQUIREMENTS

Amplitude Rep. Rate tW

tR

tF

3.0V

1MHz 500ns 2.5ns 2.5ns

August 23, 1993

9

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