CY7C421-10JC(2002) Ver la hoja de datos (PDF) - Cypress Semiconductor
Número de pieza
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Fabricante
CY7C421-10JC Datasheet PDF : 22 Pages
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CY7C419/21/25/29/33
Switching Characteristics Over the Operating Range[7, 8] (continued)
Parameter
tRC
tA
tRR
tPR
tLZR[6,9]
tDVR[9,10]
tHZR[6,9,10]
tWC
tPW
tHWZ[6,9]
tWR
tSD
tHD
tMRSC
tPMR
tRMR
tRPW
tWPW
tRTC
tPRT
tRTR
tEFL
tHFH
tFFH
tREF
tRFF
tWEF
tWFF
tWHF
tRHF
tRAE
tRPE
tWAF
tWPF
tXOL
tXOH
Description
Read Cycle Time
Access Time
Read Recovery Time
Read Pulse Width
Read LOW to Low Z
Data Valid After Read HIGH
Read HIGH to High Z
Write Cycle Time
Write Pulse Width
Write HIGH to Low Z
Write Recovery Time
Data Set-Up Time
Data Hold Time
MR Cycle Time
MR Pulse Width
MR Recovery Time
Read HIGH to MR HIGH
Write HIGH to MR HIGH
Retransmit Cycle Time
Retransmit Pulse Width
Retransmit Recovery Time
MR to EF LOW
MR to HF HIGH
MR to FF HIGH
Read LOW to EF LOW
Read HIGH to FF HIGH
Write HIGH to EF HIGH
Write LOW to FF LOW
Write LOW to HF LOW
Read HIGH to HF HIGH
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
7C419–30
7C421–30
7C424–30
7C425–30
7C429–30
7C433–30
7C419–40
7C420–40
7C421–40
7C424–40
7C425–40
7C429–40
7C432–40
7C433–40
7C420–65
7C421–65
7C424–65
7C425–65
7C428–65
7C429–65
7C433–65
Min. Max. Min. Max. Min. Max. Unit
40
50
80
ns
30
40
65
ns
10
10
15
ns
30
40
65
ns
3
3
3
ns
5
5
5
ns
20
20
20
ns
40
50
80
ns
30
40
65
ns
5
5
5
ns
10
10
15
ns
18
20
30
ns
0
0
0
ns
40
50
80
ns
30
40
65
ns
10
10
15
ns
30
40
65
ns
30
40
65
ns
40
50
80
ns
30
40
65
ns
10
10
15
ns
40
50
80
ns
40
50
80
ns
40
50
80
ns
30
35
60
ns
30
35
60
ns
30
35
60
ns
30
35
60
ns
30
35
60
ns
30
35
60
ns
30
35
60
ns
30
40
65
ns
30
35
60
ns
30
40
65
ns
30
40
65
ns
30
40
65
ns
Document #: 38-06001 Rev. *A
Page 7 of 22
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