CY7C146-45JI 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C146-45JI Datasheet PDF : 15 Pages
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CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Switching Characteristics
Over the Operating Range (Speeds -35, -45, -55) [8]
Parameter
Description
Read Cycle
tRC
Read Cycle Time
tAA
Address to Data Valid[9]
tOHA
Data Hold from Address Change
tACE
CE LOW to Data Valid[9]
tDOE
OE LOW to Data Valid[9]
tLZOE
OE LOW to Low Z[7, 10]
tHZOE
OE HIGH to High Z[7, 10, 11]
tLZCE
CE LOW to Low Z[7, 10]
tHZCE
CE HIGH to High Z[7, 10, 11]
tPU
CE LOW to Power Up[7]
tPD
CE HIGH to Power Down[7]
Write Cycle[12]
tWC
Write Cycle Time
tSCE
CE LOW to Write End
tAW
Address Setup to Write End
tHA
Address Hold from Write End
tSA
Address Setup to Write Start
tPWE
R/W Pulse Width
tSD
Data Setup to Write End
tHD
tHZWE
tLZWE
Data Hold from Write End
R/W LOW to High Z [7]
R/W HIGH to Low Z [7]
Busy/Interrupt Timing
tBLA
tBHA
tBLC
tBHC
tPS
tWB
tWH
tBDD
tDDD
tWDD
BUSY LOW from Address Match
BUSY HIGH from Address Mismatch[13]
BUSY LOW from CE LOW
BUSY HIGH from CE HIGH[13]
Port Set Up for Priority
R/W LOW after BUSY LOW[14]
R/W HIGH after BUSY HIGH
BUSY HIGH to Valid Data
Write Data Valid to Read Data Valid
Write Pulse to Data Delay
7C132-35
7C136-35
7C142-35
7C146-35
7C132-45
7C136-45
7C142-45
7C146-45
7C132-55
7C136-55
7C136A-55
7C142-55
Unit
7C146-55
Min
Max
Min
Max
Min
Max
35
45
55
ns
35
45
55
ns
0
0
0
ns
35
45
55
ns
20
25
25
ns
3
3
3
ns
20
20
25
ns
5
5
5
ns
20
20
25
ns
0
0
0
ns
35
35
35
ns
35
45
55
ns
30
35
40
ns
30
35
40
ns
2
2
2
ns
0
0
0
ns
25
30
30
ns
15
20
20
ns
0
0
0
ns
20
20
25
ns
0
0
0
ns
20
25
30
ns
20
25
30
ns
20
25
30
ns
20
25
30
ns
5
5
5
ns
0
0
0
ns
30
35
35
ns
35
45
45
ns
Note 15
Note 15
Note 15 ns
Note 15
Note 15
Note 15 ns
Document #: 38-06031 Rev. *E
Page 6 of 15
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