CY7C1399 CYPRESS [Cypress Semiconductor], CY7C1399 Datasheet - Page 6

• Manufacturer Part Number: CY7C1399
• Description: 32K x 8 3.3V Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Switching Waveforms
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Write Cycle No. 3 (WE Controlled, OE LOW)
Notes:
13. Data I/O is high impedance if OE = V
14. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
15. During this period, the I/Os are in the output state and input signals shold not be applied.
ADDRESS
ADDRESS
ADDRESS
DATA I/O
DATA I/O
DATA I/O
CE
WE
WE
WE
OE
CE
CE
NOTE 15
NOTE 15
t
SA
(continued)
t
SA
IH
t
HZOE
.
[8, 13, 14]
[8, 13, 14]
t
HZWE
t
SA
[9, 14]
t
AW
t
t
AW
AW
t
WC
t
t
WC
WC
6
DATA
t
PWE
t
SD
DATA
DATA
IN
t
SCE
t
SD
t
VALID
SD
IN
IN
VALID
VALID
t
HD
t
t
t
HA
HA
LZWE
t
HA
t
t
HD
HD
CY7C1399
C1399–10
C1399–8
C1399–9