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Num
Characteristic
8
Clock High to Address, FC, SIZE,
RMC Invalid
9
Clock Low to AS, DS, CS Asserted
9A
AS to DS or CS Asserted (Read)
11
Address, FC, SIZE, RMC Valid to AS,
CS (and DS Read) Asserted
12
Clock Low to AS, DS, CS Negated
13
AS, DS, CS Negated to Address, FC,
SIZE Invalid (Address Hold)
14
AS, CS (and DS Read) Width Asserted
14A
DS, CS Width Asserted (Write)
14B
AS, CS (and DS Read) Width Asserted
(Fast Write Cycle)
15
AS, DS, CS Width Negated
16
Clock High to AS, DS, R/W High
Impedance
17
AS, DS, CS Negated to R/W Negated
18
Clock High to R/W High
20
Clock High to R/W Low
HP 64782 — AC TIMING SPECIFICATIONS
= 5.0 Vdc ±10%, V
(
and V
V DD
DDSYN
Chapter 9: Specifications and Characteristics
HP 64782 AC Timing Specifications
= 0 Vdc)
SS
16.78 MHz
20.97 MHz
Min
Max
Min
-5
—
-5
-3
23
-3
-15
15
-10
15
—
10
-3
27
-3
15
—
10
100
—
80
45
—
36
40
—
32
40
—
32
—
57
—
15
—
10
-5
27
-5
-5
27
-5
Unit
Max
—
ns
21
ns
10
ns
—
ns
21
ns
—
ns
—
ns
—
ns
—
ns
—
ns
45
ns
—
ns
21
ns
21
ns
137
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