82C89 Datasheet, PDF (12/15 Pages) Intersil Corporation – CMOS Bus Arbiter

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
V_IH +0.4V
1.5V
V_IL -0.4V
OUTPUT
V_OH
1.5V
V_OL
AC Testing: Inputs are driven at V_IH +0.4V for a logic “1” and V_IL
-0.4V for a logic “0”. The clock is driven at V_CC -0.4V and 0.4V. Tim-
ing measurements are made at 1.5V for both a logic “1” and “0”.
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