cy62147ev30 Cypress Semiconductor Corporation., cy62147ev30 Datasheet - Page 7

• Manufacturer Part Number: cy62147ev30
• Description: 4-mbit 256k X 16 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-05440 Rev. *E
Switching Waveforms
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Notes
20. Data IO is high impedance if OE = V
21. If CE goes HIGH simultaneously with WE = V
22. During this period, the IOs are in output state. Do not apply input signals.
ADDRESS
ADDRESS
BHE/BLE
BHE/BLE
DATA IO
DATA IO
WE
WE
CE
OE
OE
CE
NOTE 22
NOTE 22
(continued)
IH
.
[16, 20, 21]
t
[16, 20, 21]
HZOE
t
SA
t
HZOE
IH
, the output remains in a high impedance state.
t
SA
Figure 5. Write Cycle No. 1
Figure 6. Write Cycle No. 2
t
AW
t
AW
t
t
SCE
WC
t
WC
t
BW
t
BW
DATA
t
t
PWE
SD
DATA
t
t
PWE
SD
t
IN
SCE
IN
CY62147EV30 MoBL
t
HD
t
HA
t
HA
t
HD
Page 7 of 12
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