CY7C131-55NC Cypress Semiconductor Corp, CY7C131-55NC Datasheet - Page 9
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CY7C131-55NC
Manufacturer Part Number
CY7C131-55NC
Description
IC,SRAM,1KX8,CMOS,QFP,52PIN,PLASTIC
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C131-55NC.pdf
(19 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CY7C131-55NC
Manufacturer:
CYPRESS
Quantity:
120
Switching Waveforms
Document #: 38-06002 Rev. *D
Write Cycle No. 1 (OE Three-States Data I/Os—Either Port
Write Cycle No. 2 (R/W Three-States Data I/Os—Either Port)
Notes:
ADDRESS
22. If OE is LOW during a R/W controlled write cycle, the write pulse width must be the larger of t
23. If the CE LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in the high-impedance state.
ADDRESS
DATA
DATA
D
and for data to be placed on the bus for the required t
DATA
OUT
R/W
OE
CE
R/W
OUT
IN
CE
IN
t
HZOE
(continued)
t
SA
t
SA
SD
.
t
SCE
t
SCE
t
AW
t
AW
t
Either Port
t
HZWE
WC
t
WC
[15, 22]
[16, 23]
HIGH IMPEDANCE
t
PWE
DATA VALID
t
PWE
t
SD
PWE
HIGH IMPEDANCE
or t
t
DATA VALID
SD
HZWE
+ t
SD
to allow the data I/O pins to enter high impedance
t
HD
t
HD
t
LZWE
t
HA
t
HA
CY7C130/CY7C131
CY7C140/CY7C141
Page 9 of 19
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