CY7C09279 Cypress Semiconductor, CY7C09279 Datasheet - Page 10
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CY7C09279
Manufacturer Part Number
CY7C09279
Description
(CY7C09279 - CY7C09289) 32K/64K X 16/18 Synchronous Dual Port Static RAM
Manufacturer
Cypress Semiconductor
Datasheet
1.CY7C09279.pdf
(18 pages)
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Switching Waveforms
Pipelined Read-to-Write-to-Read (OE = V
Pipelined Read-to-Write-to-Read (OE Controlled)
Notes:
Document #: 38-06040 Rev. **
24. Output state (HIGH, LOW, or High-Impedance) is determined by the previous cycle control signals.
25. CE
26. During “No Operation,” data in memory at the selected address may be corrupted and should be rewritten to ensure data integrity.
ADDRESS
ADDRESS
DATA
DATA
DATA
DATA
0
CLK
R/W
CLK
R/W
CE
CE
CE
CE
and ADS = V
OUT
OUT
OE
IN
IN
0
1
0
1
t
t
t
t
t
t
SW
SC
SA
SW
SC
SA
IL
; CE
A
A
1
n
, CNTEN, and CNTRST = V
n
t
t
CH2
CH2
(continued)
t
t
CYC2
t
t
t
CYC2
t
t
t
HW
HC
HA
HW
HC
HA
t
t
CL2
CL2
A
READ
A
READ
n+1
n+1
t
t
CD2
CD2
IL
)
IH
[17, 24, 25, 26]
.
Q
t
t
SW
OHZ
n
[17, 24, 25, 26]
Q
n
t
SW
t
SD
D
A
A
n+2
n+2
t
n+2
HW
t
t
CKHZ
NO OPERATION
HD
t
HW
t
WRITE
SD
A
D
A
D
n+3
n+3
n+2
n+2
t
HD
WRITE
A
A
n+4
n+3
t
t
CKLZ
CKLZ
CY7C09279/89
CY7C09379/89
READ
READ
A
A
n+5
n+4
t
Page 10 of 18
t
CD2
CD2
Q
n+4
Q
n+3