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S R A M
AS5C4009
Austin Semiconductor, Inc.
AS5C4009
Rev. 5.0 6/03
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\ = V
IH
)
READ CYCLE NO. 2
2
(WE\ = V
IH
)
LOW V
CC
DATA RETENTION WAVEFORM
ADDRESS
t
RC
123412345678901
123412345678901
123412345678901
123412345678901
123412345678901
123412345678901
1234567
1234567
1234567
1234567
1234567
1234567
t
OH
t
AA
Previous Data Valid
Data Valid
DATA OUT
ADDRESS
t
RC
t
AA
t
CO1
CE\
123456789012345678123456
123456789012345678123456
123456789012345678123456
123456789012345678123456
1234567890123456789012
1234567890123456789012
1234567890123456789012
1234567890123456789012
12312345678901234567890
12312345678901234567890
12312345678901234567890
12312345678901234567890
t
HZ
123456789012345678901
123456789012345678901
123456789012345678901
123456789012345678901
1234567890123456781234567890123
1234567890123456781234567890123
1234567890123456781234567890123
1234567890123456781234567890123
1234567890123456789012
1234567890123456789012
1234567890123456789012
1234567890123456789012
12345612345678901234567890
12345612345678901234567890
12345612345678901234567890
12345612345678901234567890
OHZ
123456789012345678901
123456789012345678901
123456789012345678901
123456789012345678901
t
OE
123451234567
123451234567
123451234567
123451234567
123451234567
123451234567
1231234567
1231234567
1231234567
1231234567
1231234567
1231234567
Data Valid
High-Z
t
OH
t
OLZ
t
LZ
OE\
DATA OUT
12345
12345
12345
12345
12345
Don’t Care
Undefined
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