CY7C1049-20VM CYPRESS [Cypress Semiconductor], CY7C1049-20VM Datasheet - Page 6

• Manufacturer Part Number: CY7C1049-20VM
• Description: 512K x 8 Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Switching Waveforms
Read Cycle No. 1
Read Cycle No. 2 (OE Controlled)
Notes:
Document #: 38-05063 Rev. **
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 Retention Waveform
DATA OUT
DATA OUT
ADDRESS
CURRENT
ADDRESS
V
SUPPLY
CE
CC
CE
V
OE
CC
[11, 12]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
PU
t
LZCE
[12, 13]
t
t
LZOE
ACE
IL
t
CDR
.
PRELIMINARY
3.0V
t
OHA
50%
t
DOE
t
AA
DATA RETENTION MODE
t
RC
V
DR
t
RC
> 2V
DATA VALID
3.0V
t
DATA VALID
t
HZOE
R
t
HZCE
t
PD
50%
CY7C1049
IMPEDANCE
Page 6 of 10
HIGH
1049–5
1049–6
1049–7
ICC
ISB