SRAM
Austin Semiconductor, Inc.
LOW V
CC
DATA RETENTION WAVEFORM
DATA RETENTION MODE
VDR
>2V
Vcc
CDR
tCDR
AS5C4008
4.5V
4.5V
t
t
R
tR
VDR
V
IH
CE\
V
IL
READ CYCLE NO. 1
8, 9
(Write Enabled Controlled)
t
RC
tRC
ADDRESS
VALID
t
AA
tAA
t
OH
tOH
DQ
PREVIOUS DATA VALID
DATA VALID
READ CYCLE NO. 2
7, 8, 10
(Write Enabled Controlled)
t
RC
tRC
CE\
AOE
tAOE
LZOE
tLZOE
t
t
t
HZOE
tHZOE
OE\
LZCE
tLZCE
t
t
tACE
ACE
DATA VALID
t
HZCE
tHZCE
DQ
t
tPU
PU
Icc
t
tPD
PD
AS5C4008
Rev. 5.5 12/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
6