cy62157e Cypress Semiconductor Corporation., cy62157e Datasheet - Page 7

• Manufacturer Part Number: cy62157e
• Description: 8-mbit 512k X 16 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-05695 Rev. *C
Switching Waveforms
Write Cycle 1 (WE Controlled)
Write Cycle 2 (CE
Notes:
19. Data IO is high impedance if OE = V
20. If CE
21. During this period, the IOs are in output state and input signals should not be applied.
ADDRESS
ADDRESS
BHE/BLE
BHE/BLE
DATA IO
DATA IO
1
goes HIGH and CE
CE
CE
CE
CE
WE
WE
OE
OE
1
2
1
2
See Note 21
See Note 21
1
or CE
2
goes LOW simultaneously with WE = V
2
Controlled)
(continued)
IH
[15, 19, 20, 21]
.
t
SA
t
t
HZOE
HZOE
[15, 19, 20, 21]
t
SA
t
t
AW
AW
IH
, the output remains in a high-impedance state.
t
SCE
t
t
WC
WC
t
t
BW
BW
VALID DATA
VALID DATA
t
t
t
t
PWE
PWE
SD
SD
t
SCE
t
t
HA
HA
CY62157E MoBL
t
t
HD
HD
Page 7 of 12
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