CY7C1021 Cypress Semiconductor, CY7C1021 Datasheet - Page 5

• Manufacturer Part Number: CY7C1021
• Description: 64K x 16 Static RAM
• Manufacturer: Cypress Semiconductor

Switching Waveforms
Document #: 38-05054 Rev. **
Write Cycle No. 2 (BLE or BHE Controlled)
BHE, BLE
Notes:
Write Cycle No. 1 (CE Controlled)
12. Data I/O is high impedance if OE or BHE and/or BLE= V
13. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
DATA I/O
BHE, BLE
ADDRESS
DATA I/O
ADDRESS
WE
CE
CE
WE
(continued)
t
SA
t
SA
[12, 13]
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
CY7C1021
1021-8
1021-7
Page 5 of 9