CY7C1399B-12VXI CYPRESS [Cypress Semiconductor], CY7C1399B-12VXI Datasheet - Page 7

• Manufacturer Part Number: CY7C1399B-12VXI
• Description: 256K(32K x 8) Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-05071 Rev. *D
Switching Waveforms
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Write Cycle No. 3 (WE Controlled, OE LOW)
Notes:
14. Data I/O is high impedance if OE = V
15. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
16. During this period, the I/Os are in the output state and input signals should not be applied.
ADDRESS
ADDRESS
ADDRESS
DATA I/O
DATA I/O
DATA I/O
CE
WE
WE
WE
CE
OE
CE
NOTE 16
NOTE 16
t
SA
(continued)
t
IH
SA
t
.
HZOE
t
HZWE
[9, 14, 15]
[9, 14, 15]
t
SA
[10, 15]
t
AW
t
t
AW
AW
t
WC
t
t
WC
WC
DATA
t
PWE
t
SD
DATA
DATA
IN
t
SCE
t
SD
t
VALID
SD
IN
IN
VALID
VALID
t
HD
t
t
t
HA
HA
LZWE
t
HA
t
t
HD
HD
CY7C1399B
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