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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
t
RC
Read Cycle Time 35 45 55 ns
t
AA
Address to Data Valid
[9]
35 45 55 ns
t
OHA
Data Hold from Address Change 0 0 0 ns
t
ACE
CE LOW to Data Valid
[9]
35 45 55 ns
t
DOE
OE LOW to Data Valid
[9]
20 25 25 ns
t
LZOE
OE LOW to Low Z
[7, 10]
333ns
t
HZOE
OE HIGH to High Z
[7, 10, 11]
20 20 25 ns
t
LZCE
CE LOW to Low Z
[7, 10]
555ns
t
HZCE
CE HIGH to High Z
[7, 10, 11]
20 20 25 ns
t
PU
CE LOW to Power Up
[7]
000ns
t
PD
CE HIGH to Power Down
[7]
35 35 35 ns
Write Cycle
[12]
t
WC
Write Cycle Time 35 45 55 ns
t
SCE
CE LOW to Write End 30 35 40 ns
t
AW
Address Setup to Write End 30 35 40 ns
t
HA
Address Hold from Write End 2 2 2 ns
t
SA
Address Setup to Write Start 0 0 0 ns
t
PWE
R/W Pulse Width 25 30 30 ns
t
SD
Data Setup to Write End 15 20 20 ns
t
HD
Data Hold from Write End 0 0 0 ns
t
HZWE
R/W LOW to High Z
[7]
20 20 25 ns
t
LZWE
R/W HIGH to Low Z
[7]
000ns
Busy/Interrupt Timing
t
BLA
BUSY LOW from Address Match 20 25 30 ns
t
BHA
BUSY HIGH from Address Mismatch
[13]
20 25 30 ns
t
BLC
BUSY LOW from CE LOW 20 25 30 ns
t
BHC
BUSY HIGH from CE HIGH
[13]
20 25 30 ns
t
PS
Port Set Up for Priority 5 5 5 ns
t
WB
R/W LOW after BUSY LOW
[14]
000ns
t
WH
R/W HIGH after BUSY HIGH 30 35 35 ns
t
BDD
BUSY HIGH to Valid Data 35 45 45 ns
t
DDD
Write Data Valid to Read Data Valid Note 15 Note 15 Note 15 ns
t
WDD
Write Pulse to Data Delay Note 15 Note 15 Note 15 ns
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