Cypress Semiconductor CY7C131 Hoja de especificaciones - Página 8

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Cypress Semiconductor CY7C131 Hoja de especificaciones
Switching Characteristics
Parameter
Read Cycle
t
Read Cycle Time
RC
t
Address to Data Valid
AA
t
Data Hold from Address Change
OHA
t
CE LOW to Data Valid
ACE
t
OE LOW to Data Valid
DOE
t
OE LOW to Low Z
LZOE
t
OE HIGH to High Z
HZOE
t
CE LOW to Low Z
LZCE
t
CE HIGH to High Z
HZCE
t
CE LOW to Power Up
PU
t
CE HIGH to Power Down
PD
[16]
Write Cycle
t
Write Cycle Time
WC
t
CE LOW to Write End
SCE
t
Address Setup to Write End
AW
t
Address Hold from Write End
HA
t
Address Setup to Write Start
SA
t
R/W Pulse Width
PWE
t
Data Setup to Write End
SD
t
Data Hold from Write End
HD
t
R/W LOW to High Z
HZWE
t
R/W HIGH to Low Z
LZWE
Busy/Interrupt Timing
t
BUSY LOW from Address Match
BLA
t
BUSY HIGH from Address Mismatch
BHA
t
BUSY LOW from CE LOW
BLC
t
BUSY HIGH from CE HIGH
BHC
t
Port Set Up for Priority
PS
[18]
t
R/W LOW after BUSY LOW
WB
t
R/W HIGH after BUSY HIGH
WH
t
BUSY HIGH to Valid Data
BDD
t
Write Data Valid to Read Data Valid
DDD
t
Write Pulse to Data Delay
WDD
Interrupt Timing
t
R/W to INTERRUPT Set Time
WINS
t
CE to INTERRUPT Set Time
EINS
t
Address to INTERRUPT Set Time
INS
t
OE to INTERRUPT Reset Time
OINR
t
CE to INTERRUPT Reset Time
EINR
t
Address to INTERRUPT Reset Time
INR
Document #: 38-06002 Rev. *E
Over the Operating Range
Description
[13]
[13]
[13]
[10, 14, 15]
[10, 14, 15]
[10, 14, 15]
[10, 14, 15]
[10]
[10]
[15]
[15]
[17]
[17]
[17]
[17]
[17]
[7,12]
7C130-35
7C130-45
7C131-35
7C131-45
7C140-35
7C140-45
7C141-35
7C141-45
Min
Max
Min
35
45
35
0
0
35
20
3
3
20
5
5
20
0
0
35
35
45
30
35
30
35
2
2
0
0
25
30
15
20
0
0
20
0
0
20
20
20
20
5
5
0
0
30
35
35
Note 19
Note 19
25
25
25
25
25
25
CY7C130, CY7C130A
CY7C131, CY7C131A
CY7C140, CY7C141
7C130-55
7C131-55
7C140-55
Unit
7C141-55
Max
Min
Max
55
ns
45
55
ns
0
ns
45
55
ns
25
25
ns
3
ns
20
25
ns
5
ns
20
25
ns
0
ns
35
35
ns
55
ns
40
ns
40
ns
2
ns
0
ns
30
ns
20
ns
0
ns
20
25
ns
0
ns
25
30
ns
25
30
ns
25
30
ns
25
30
ns
5
ns
0
ns
35
ns
45
45
ns
Note 19
Note 19
ns
Note 19
Note 19
ns
35
45
ns
35
45
ns
35
45
ns
35
45
ns
35
45
ns
35
45
ns
Page 8 of 19
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