SRAM
AS5C4009LL
Austin Semiconductor, Inc.
LOW VCC DATA RETENTION WAVEFORM
CE\ Controlled
tRDR
tSDR
Data Retention
VCC
4.5V
2.2V
VDR
CE\ > Vcc - 0.2V
CE\
GND
READ CYCLE NO. 1 1
(Address Controlled, CE\ = OE\ = VIL, WE\ = VIH)
tRC
ADDRESS
tAA
tOH
Previous Data Valid
DATA OUT
Data Valid
READ CYCLE NO. 2 2
(WE\ = VIH)
tRC
ADDRESS
tAA
tOH
tCO1
CE\
OE\
tHZ
tOE
tOHZ
tOLZ
tLZ
High-Z
Data Valid
DATA OUT
Don’t Care
Undefined
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
AS5C4009LL
Rev. 4.0 2/01
6