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