CY7C4255-35 查看數據表（PDF） - Cypress Semiconductor
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CY7C4255-35 Datasheet PDF : 22 Pages
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CY7C4255
CY7C4265
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
tPAEsynch
tHF
tXO
tXI
tXIS
tSKEW1
Clock to Programmable Almost-Full Flag
8
(Synchronous mode, VCC/SMODE tied to VSS)
10
15
20 ns
Clock to Half-Full Flag
12
16
20
25 ns
Clock to Expansion Out
6
10
15
20 ns
Expansion in Pulse Width
4.5
6.5
10
14
ns
Expansion in Set-Up Time
4
5
10
15
ns
Skew Time between Read Clock and Write
5
Clock for Full Flag
6
10
12
ns
tSKEW2
Skew Time between Read Clock and Write
5
Clock for Empty Flag
6
10
12
ns
tSKEW3
Skew Time between Read Clock and Write
10
15
18
20
ns
Clock for Programmable Almost Empty and Pro-
grammable Almost Full Flags (Synchronous
Mode only)
6
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