82C89 Просмотр технического описания (PDF) - Intersil

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82C89

CMOS Bus Arbiter

Intersil 

AC Test Load Circuits

BUSY, CBRQ LOAD CIRCUIT

2.5V

OUTPUT FROM

DEVICE

UNDER TEST

102Ω

TEST

POINT

100pF

(NOTE)

82C89

AEN LOAD CIRCUIT

2.9V

OUTPUT FROM

DEVICE

UNDER TEST

157.2Ω

TEST

POINT

100pF

(NOTE)

BPRO, BREQ LOAD CIRCUIT

2.9V

OUTPUT FROM

DEVICE

UNDER TEST

249.6Ω

TEST

POINT

100pF

(NOTE)

NOTE: Includes Stray and Jig Capacitance

AC Testing Input, Output Waveform

INPUT

VIH +0.4V

1.5V

VIL -0.4V

OUTPUT

VOH

1.5V

VOL

AC Testing: Inputs are driven at VIH +0.4V for a logic “1” and VIL

-0.4V for a logic “0”. The clock is driven at VCC -0.4V and 0.4V. Tim-

ing measurements are made at 1.5V for both a logic “1” and “0”.

4-354

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