6 / 15 page
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Document #: 38-06031 Rev. *E
Page 6 of 15
Switching Characteristics
Over the Operating Range (Speeds -35, -45, -55) [8]
Parameter
Description
7C132-35
7C136-35
7C142-35
7C146-35
7C132-45
7C136-45
7C142-45
7C146-45
7C132-55
7C136-55
7C136A-55
7C142-55
7C146-55
Unit
Min
Max
Min
Max
Min
Max
Read Cycle
tRC
Read Cycle Time
35
45
55
ns
tAA
Address to Data Valid[9]
35
45
55
ns
tOHA
Data Hold from Address Change
0
0
0
ns
tACE
CE LOW to Data Valid[9]
35
45
55
ns
tDOE
OE LOW to Data Valid[9]
20
25
25
ns
tLZOE
OE LOW to Low Z[7, 10]
33
3
ns
tHZOE
OE HIGH to High Z[7, 10, 11]
20
20
25
ns
tLZCE
CE LOW to Low Z[7, 10]
55
5
ns
tHZCE
CE HIGH to High Z[7, 10, 11]
20
20
25
ns
tPU
CE LOW to Power Up[7]
00
0
ns
tPD
CE HIGH to Power Down[7]
35
35
35
ns
Write Cycle[12]
tWC
Write Cycle Time
35
45
55
ns
tSCE
CE LOW to Write End
30
35
40
ns
tAW
Address Setup to Write End
30
35
40
ns
tHA
Address Hold from Write End
2
2
2
ns
tSA
Address Setup to Write Start
0
0
0
ns
tPWE
R/W Pulse Width
25
30
30
ns
tSD
Data Setup to Write End
15
20
20
ns
tHD
Data Hold from Write End
0
0
0
ns
tHZWE
R/W LOW to High Z [7]
20
20
25
ns
tLZWE
R/W HIGH to Low Z [7]
00
0
ns
Busy/Interrupt Timing
tBLA
BUSY LOW from Address Match
20
25
30
ns
tBHA
BUSY HIGH from Address Mismatch[13]
20
25
30
ns
tBLC
BUSY LOW from CE LOW
20
25
30
ns
tBHC
BUSY HIGH from CE HIGH[13]
20
25
30
ns
tPS
Port Set Up for Priority
5
5
5
ns
tWB
R/W LOW after BUSY LOW[14]
00
0
ns
tWH
R/W HIGH after BUSY HIGH
30
35
35
ns
tBDD
BUSY HIGH to Valid Data
35
45
45
ns
tDDD
Write Data Valid to Read Data Valid
Note 15
Note 15
Note 15
ns
tWDD
Write Pulse to Data Delay
Note 15
Note 15
Note 15
ns
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