cym1465a Cypress Semiconductor Corporation., cym1465a Datasheet - Page 4

• Manufacturer Part Number: cym1465a
• Description: 512k X 8 Pdip Static Ram Semiconductor
• Manufacturer: Cypress Semiconductor Corporation.

Switching Waveforms
Document #: 38-05269 Rev. **
Read Cycle No. 1
Read Cycle No. 2
Data Retention Waveform
Notes:
6.
7.
8.
DATA OUT
DATA OUT
ADDRESS
WE is HIGH for read cycle.
Device is continuously selected, CE= V
Address valid prior to or coincident with CE transition LOW.
V
CE
CC
CE
OE
[6,8]
[6,7]
PREVIOUS DATA VALID
HIGH IMPEDANCE
t
LZCS
IL
t
.
ACE
t
LZOE
V
IH
t
OHA
t
CDR
t
DOE
3.0V
t
AA
t
RC
DATA RETENTION MODE
t
RC
V
DR
V
DR
> 2V
DATA VALID
DATA VALID
3.0V
t
R
t
HZOE
V
t
HZCE
IH
CYM1465A
IMPEDANCE
HIGH
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