CY7C1021D CYPRESS [Cypress Semiconductor], CY7C1021D Datasheet - Page 7

• Manufacturer Part Number: CY7C1021D
• Description: 1-Mbit (64K x 16) Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Switching Waveforms
Write Cycle No. 1 (CE Controlled)
Write Cycle No. 2 (BLE or BHE Controlled)
Notes
Document #: 38-05462 Rev. *E
17. Data IO is high impedance if OE or BHE and/or BLE = V
18. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
ADDRESS
ADDRESS
BHE, BLE
BHE, BLE
DATA IO
DATA IO
WE
WE
CE
CE
(continued)
t
SA
t
SA
[17, 18]
IH
.
t
AW
t
AW
t
WC
t
WC
t
t
BW
t
PWE
t
SCE
SCE
t
PWE
t
BW
t
SD
t
SD
t
HD
t
HD
t
HA
t
HA
CY7C1021D
Page 7 of 11
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