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CY7C4255
CY7C4265
Document #: 38-06004 Rev. *B
Page 6 of 22
tXO
Clock to Expansion Out
6
10
15
20
ns
tXI
Expansion in Pulse Width
4.5
6.5
10
14
ns
tXIS
Expansion in Set-Up Time
4
5
10
15
ns
tSKEW1
Skew Time between Read Clock and Write
Clock for Full Flag
5
6
10
12
ns
tSKEW2
Skew Time between Read Clock and Write
Clock for Empty Flag
5
6
10
12
ns
tSKEW3
Skew Time between Read Clock and Write
Clock for Programmable Almost Empty and Pro-
grammable Almost Full Flags (Synchronous
Mode only)
10
15
18
20
ns
Switching Characteristics Over the Operating Range (continued)
7C42X5-10
7C42X5-15
7C42X5-25
7C42X5-35
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
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