CY7C421(2002) View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
MFG CO.
CY7C421 Datasheet PDF : 22 Pages
| |||
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
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
tEFL
tHFH
tFFH
tREF
tRFF
tWEF
tWFF
tWHF
tRHF
tRAE
tRPE
tWAF
tWPF
tXOL
tXOH
MR to EF LOW
20
25
30
35 ns
MR to HF HIGH
20
25
30
35 ns
MR to FF HIGH
20
25
30
35 ns
Read LOW to EF LOW
10
15
20
25 ns
Read HIGH to FF HIGH
10
15
20
25 ns
Write HIGH to EF HIGH
10
15
20
25 ns
Write LOW to FF LOW
10
15
20
25 ns
Write LOW to HF LOW
10
15
20
25 ns
Read HIGH to HF HIGH
10
15
20
25 ns
Effective Read from Write HIGH
10
15
20
25 ns
Effective Read Pulse Width After EF HIGH 10
15
20
25
ns
Effective Write from Read HIGH
10
15
20
25 ns
Effective Write Pulse Width After FF HIGH 10
15
20
25
ns
Expansion Out LOW Delay from Clock
10
15
20
25 ns
Expansion Out HIGH Delay from Clock
10
15
20
25 ns
Document #: 38-06001 Rev. *A
Page 6 of 22
Share Link: 