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SRAM
AS5C4009LL
Austin Semiconductor, Inc.
AS5C4009LL
Rev. 4.0 2/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
6
READ CYCLE NO. 1 1
(Address Controlled, CE\ = OE\ = V
IL, WE\ = VIH)
READ CYCLE NO. 2 2
(WE\ = V
IH)
LOW V
CC DATA RETENTION WAVEFORM
ADDRESS
t
RC
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
12345678901
12345678901
12345678901
12345678901
12345678901
12345678901
12
12
12
12
12
12
12
12
12
12
12
12
t
OH
t
AA
Previous Data Valid
Data Valid
DATA OUT
ADDRESS
t
RC
t
AA
CE\
123456
123456
123456
123456
12345678901234567890
12345678901234567890
12345678901234567890
12345678901234567890
1234567890123456789012
1234567890123456789012
1234567890123456789012
1234567890123456789012
123456
123456
123456
123456
12345678901234567890
12345678901234567890
12345678901234567890
12345678901234567890
123456789012345678901
123456789012345678901
123456789012345678901
123456789012345678901
t
CO1
1234567890123
1234567890123
1234567890123
1234567890123
1234567890123
12345678901234567890
12345678901234567890
12345678901234567890
12345678901234567890
1234567890123456789012
1234567890123456789012
1234567890123456789012
1234567890123456789012
123456789
123456789
123456789
123456789
123456789
12345678901234567890
12345678901234567890
12345678901234567890
12345678901234567890
12345678901234567890
123456789012345678901
123456789012345678901
123456789012345678901
123456789012345678901
t
OE
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234
1234
1234
1234
1234
1234
12
12
12
12
12
12
12
12
12
12
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234567
1234
1234
1234
1234
1234
1234
1
1
1
1
1
12
12
12
12
12
Data Valid
High-Z
t
OH
t
HZ
t
OHZ
t
OLZ
t
LZ
OE\
DATA OUT
12345
12345
12345
12345
12345
Don’t Care
Undefined
12345
12345
12345
12345
12345
12345
t
SDR
t
RDR
Data Retention
V
CC
4.5V
2.2V
V
DR
GND
CE\
CE\ > Vcc - 0.2V
CE\ Controlled