CY7C419/21/25/29/33
Switching Characteristics Over the Operating Range[7, 8] (continued)
7C419–10
7C421–10
7C425–10
7C429–10
7C433–10
7C419–15
7C420–20
7C421–20
7C424–20
7C425–20
7C428–20
7C429–20
7C420–25
7C421–25
7C424–25
7C425–25
7C421–15
7C425–15
7C429–15
7C433–15
7C429–25
7C432–25
7C433–25
7C433–20
Parameter
tEFL
Description
Min. Max. Min. Max. Min. Max. Min. Max. Unit
MR to EF LOW
MR to HF HIGH
MR to FF HIGH
20
20
20
10
10
10
10
10
10
10
25
25
25
15
15
15
15
15
15
15
30
30
30
20
20
20
20
20
20
20
35
35
35
25
25
25
25
25
25
25
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tHFH
tFFH
tREF
Read LOW to EF LOW
tRFF
Read HIGH to FF HIGH
tWEF
tWFF
tWHF
tRHF
Write HIGH to EF HIGH
Write LOW to FF LOW
Write LOW to HF LOW
Read HIGH to HF HIGH
tRAE
Effective Read from Write HIGH
Effective Read Pulse Width After EF HIGH
Effective Write from Read HIGH
Effective Write Pulse Width After FF HIGH
Expansion Out LOW Delay from Clock
Expansion Out HIGH Delay from Clock
tRPE
10
10
15
15
20
20
25
25
tWAF
tWPF
tXOL
10
15
20
25
10
10
15
15
20
20
25
25
tXOH
Document #: 38-06001 Rev. *A
Page 6 of 22
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