CY14E256LA-ZS25XI CYPRESS [Cypress Semiconductor], CY14E256LA-ZS25XI Datasheet - Page 11

• Manufacturer Part Number: CY14E256LA-ZS25XI
• Description: 256 Kbit (32K x 8) nvSRAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document Number: 001-54952 Rev. *B
Note
16. CE or WE must be > V
Data Output
Data Output
Data Input
Address
Address
Data Output
Data Input
CE
OE
Address
I
WE
CE
CC
WE
IH
CE
during address transitions.
High Impedance
Standby
Figure 5. SRAM Read Cycle #2: CE and OE Controlled
Figure 6. SRAM Write Cycle #1: WE Controlled
Figure 7. SRAM Write Cycle #2: CE Controlled
Previous Data
t
SA
t
PU
t
SA
t
LZCE
t
LZOE
t
Address Valid
AA
t
ACE
High Impedance
t
AW
t
Address Valid
t
t
PWE
t
DOE
SCE
HZWE
t
RC
Active
Address Valid
t
SCE
t
PWE
t
WC
Input Data Valid
t
WC
t
SD
t
High Impedance
SD
Input Data Valid
Output Data Valid
t
LZWE
[14, 15, 16]
[14, 15, 16]
t
t
HD
HD
t
HA
t
HA
[11, 15]
t
t
HZCE
HZOE
t
PD
CY14E256LA
Page 11
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