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CY7C131-45JI Datasheet(PDF) 6 Page - Cypress Semiconductor

Part # CY7C131-45JI
Description  1K x 8 Dual-Port Static Ram
Download  16 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C131-45JI Datasheet(HTML) 6 Page - Cypress Semiconductor

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CY7C130/CY7C131
CY7C140/CY7C141
6
WRITE CYCLE[15]
tWC
Write Cycle Time
35
45
55
ns
tSCE
CE LOW to Write End
30
35
40
ns
tAW
Address Set-Up to Write End
30
35
40
ns
tHA
Address Hold from Write End
2
2
2
ns
tSA
Address Set-Up to Write Start
0
0
0
ns
tPWE
R/W Pulse Width
25
30
30
ns
tSD
Data Set-Up to Write End
15
20
20
ns
tHD
Data Hold from Write End
0
0
0
ns
tHZWE
R/W LOW to High Z[14]
20
20
25
ns
tLZWE
R/W HIGH to Low Z[14]
00
0
ns
BUSY/INTERRUPT TIMING
tBLA
BUSY LOW from Address Match
20
25
30
ns
tBHA
BUSY HIGH from Address Mismatch[16]
20
25
30
ns
tBLC
BUSY LOW from CE LOW
20
25
30
ns
tBHC
BUSY HIGH from CE HIGH[16]
20
25
30
ns
tPS
Port Set Up for Priority
5
5
5
ns
tWB
[17]
R/W LOW after BUSY LOW
0
0
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
18
Note
18
Note
18
ns
tWDD
Write Pulse to Data Delay
Note
18
Note
18
Note
18
ns
INTERRUPT TIMING
tWINS
R/W to INTERRUPT Set Time
25
35
45
ns
tEINS
CE to INTERRUPT Set Time
25
35
45
ns
tINS
Address to INTERRUPT Set Time
25
35
45
ns
tOINR
OE to INTERRUPT Reset Time[16]
25
35
45
ns
tEINR
CE to INTERRUPT Reset Time[16]
25
35
45
ns
tINR
Address to INTERRUPT Reset Time[16]
25
35
45
ns
Switching Characteristics Over the Operating Range[6,11] (continued)
7C130-35
7C131-35
7C140-35
7C141-35
7C130-45
7C131-45
7C140-45
7C141-45
7C130-55
7C131-55
7C140-55
7C141-55
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Switching Waveforms
Notes:
19. R/W is HIGH for read cycle.
20. Device is continuously selected, CE = VIL and OE = VIL.
Read Cycle No.1
tRC
tAA
tOHA
DATA VALID
PREVIOUS DATAVALID
DATA OUT
ADDRESS
C130-7
Either Port Address Access
[19, 20]


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