cym1464 Cypress Semiconductor Corporation., cym1464 Datasheet - Page 5

• Manufacturer Part Number: cym1464
• Description: 512kx8 Static Ram Module Semiconductor
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Note:
Document #: 38-05272 Rev. **
Write Cycle No. 2 (CS Controlled)
Write Cycle No. 1 (WE Controlled)
9.
ADDRESS
ADDRESS
DATAI/O
DATAI/O
If CS goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
DATAIN
DATAIN
WE
WE
CS
CS
(continued)
t
DATA UNDEFINED
DATA UNDEFINED
[5,9]
SA
[5]
t
SA
t
SCS
t
t
AW
AW
t
t
WC
WC
t
HZWE
t
HZWE
DATA VALID
DATA VALID
t
t
PWE
PWE
t
t
t
SCS
SD
SD
HIGH IMPEDANCE
HIGH IMPEDANCE
t
t
HD
HD
t
LZWE
t
t
HA
HA
CYM1464
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