cy62256nll-70zxi Cypress Semiconductor Corporation., cy62256nll-70zxi Datasheet - Page 6

• Manufacturer Part Number: cy62256nll-70zxi
• Description: 256k 32k X 8 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 001-06511 Rev. *A
Switching Waveforms
Read Cycle No. 2
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Notes:
14. Address valid prior to or coincident with CE transition LOW.
15. Data I/O is high impedance if OE = V
16. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
17. During this period, the I/Os are in output state and input signals should not be applied.
ADDRESS
DATA OUT
ADDRESS
CURRENT
DATA I/O
DATA I/O
SUPPLY
CE
WE
V
WE
CE
OE
CE
OE
CC
[13, 14]
NOTE
HIGH IMPEDANCE
17
t
PU
(continued)
t
IH
LZCE
t
SA
.
t
HZOE
[10, 15, 16]
[10, 15, 16]
t
t
LZOE
ACE
t
SA
50%
t
DOE
t
AW
t
AW
t
RC
t
WC
t
WC
DATA
t
t
PWE
SD
DATA
t
IN
SCE
t
SD
VALID
DATA VALID
IN
VALID
t
HD
t
HA
t
HA
t
HD
t
t
HZOE
HZCE
t
PD
50%
CY62256N
IMPEDANCE
Page 6 of 13
HIGH
ICC
ISB
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