CY7C1399B-12VXI CYPRESS [Cypress Semiconductor], CY7C1399B-12VXI Datasheet - Page 6

• Manufacturer Part Number: CY7C1399B-12VXI
• Description: 256K(32K x 8) Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-05071 Rev. *D
Data Retention Waveform
Switching Waveforms
Read Cycle No. 1
Read Cycle No. 2
Notes:
11. Device is continuously selected. OE, CE = V
12. WE is HIGH for read cycle.
13. Address valid prior to or coincident with CE transition LOW.
DATA OUT
DATA OUT
CURRENT
ADDRESS
SUPPLY
V
CE
V
CC
CE
OE
CC
[11, 12]
[12, 13]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
t
LZCE
t
t
LZOE
ACE
IL
.
t
t
OHA
50%
CDR
t
DOE
3.0V
t
AA
t
RC
DATA RETENTION MODE
t
V
RC
DR
> 2V
DATA VALID
DATA VALID
3.0V
t
R
t
t
HZOE
HZCE
t
PD
CY7C1399B
50%
IMPEDANCE
Page 6 of 10
HIGH
ICC
ISB