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IS61LV6464
ISSI®
Integrated Silicon Solution, Inc. — 1-800-379-4774
13
Rev. B
01/15/04
READ/WRITE CYCLE SWITCHING CHARACTERISTICS (Over Operating Range)
-100
-6
Symbol
Parameter
Min.
Max.
Min.
Max.
Unit
tKC
Cycle Time
10
—
12
—
ns
tKH
Clock High Time
4
—
4.5
—
ns
tKL
Clock Low Time
4
—
4.5
—
ns
tKQ
Clock Access Time
—
5
—
6
ns
tKQX(1)
Clock High to Output Invalid
2.5
—
2.5
—
ns
tKQLZ(1,2)
Clock High to Output Low-Z
0
—
0
—
ns
tKQHZ(1,2)
Clock High to Output High-Z
2
5
2
5
ns
tOEQ
Output Enable to Output Valid
—
5
—
5
ns
tOEQX(1)
Output Disable to Output Invalid
0
—
0
—
ns
tOELZ(1,2)
Output Enable to Output Low-Z
0
—
0
—
ns
tOEHZ(1,2)
Output Disable to Output High-Z
2
5
2
5
ns
tAS
Address Setup Time
2.5
—
2.5
—
ns
tSS
Address Status Setup Time
2.5
—
2.5
—
ns
tWS
Write Setup Time
2.5
—
2.5
—
ns
tCES
Chip Enable Setup Time
2.5
—
2.5
—
ns
tAH
Address Hold Time
0.5
—
0.5
—
ns
tSH
Address Status Hold Time
0.5
—
0.5
—
ns
tWH
Write Hold Time
0.5
—
0.5
—
ns
tCEH
Chip Enable Hold Time
0.5
—
0.5
—
ns
Note:
1. Guaranteed but not 100% tested. This parameter is periodically sampled.
2. Tested with load in Figure 2.
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