CY62128 Cypress Semiconductor, CY62128 Datasheet - Page 5

• Manufacturer Part Number: CY62128
• Description: 128K x 8 Static RAM
• Manufacturer: Cypress Semiconductor

Switching Waveforms (continued)
Write Cycle No. 1 (CE
Write Cycle No. 2 (WE Controlled, OE HIGH During Write)
Notes:
13. Data I/O is high impedance if OE = V
14. If CE
15. During this period the I/Os are in the output state and input signals should not be applied.
ADDRESS
DATA I/O
ADDRESS
DATA I/O
CE
CE
WE
CE
CE
WE
OE
1
1
2
goes HIGH or CE
1
2
NOTE 15
2
goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.
1
or CE
2
t
Controlled)
SA
IH
t
HZOE
.
t
SA
PRELIMINARY
[13,14]
t
t
AW
AW
t
SCE
t
SCE
t
WC
t
WC
[13,14]
5
t
PWE
DATA
t
t
PWE
SD
DATA VALID
t
SCE
t
t
SD
IN
SCE
VALID
t
HD
t
t
HA
HA
t
HD
CY62128
62128-8
62128-7