Ac Specifications - Intel 80960SA Manual

2.8

AC Specifications

This section describes the AC specifications for the
80960SA pins. All input and output timings are
specified relative to the 1.5V level of the rising edge
of CLK2 and refer to the time at which the signal
EDGE
CLK2
OUTPUTS:
AD15:1, A3:1, D0,
A 31:16, BE1:0,
W/R, DEN, BLAST,
HLDA, LOCK, INTA
AS
ALE
DT/R
INPUTS:
AD15:1, D0,
INT0, INT1,
INT2, INT3
HOLD
LOCK
READY
Figure 11. Drive Levels and Timing Relationships for 80960SA Signals
A B C
1.5V 1.5V
T
6
1.5V VALID OUTPUT
T
6AS
T
8
T
T
8
13
1.5V
1.5V
T
7
T
6
crosses 1.5V (for output delay and input setup). All
AC testing should be done with input voltages of
0.4V and 2.4V, except for the clock (CLK2) which
should be tested with input voltages of 0.45V and 0.7
x V . See Figure 11 and Tables 6, 7 and 8 for timing
CC
relationships for the 80960SA signals.
D A B C
1.5V 1.5V
T
9
1.5V
T
6AS
T
14
1.5V
VALID OUTPUT
T
T
10
11
2.0V 2.0V
0.8V 0.8V
T
T
12 11
2.0V 2.0V
0.8V 0.8V
80960SA
T
9
1.5V
VALID INPUT
15