®
LY6225616
Rev. 1.5
256K X 16 BIT LOW POWER CMOS SRAM
DATA RETENTION CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITION
V
CC
for Data Retention
V
DR
CE#
≧
V
CC
- 0.2V
LL
Data Retention Current
I
DR
V
CC
= 1.5V
CE#
≧
V
CC
- 0.2V
SL
Other pins at 0.2V or V
CC
-0.2V
SL
See Data Retention
Waveforms (below)
25℃
40℃
MIN.
1.5
-
-
-
-
0
t
RC
*
TYP.
-
2
2
2
2
-
-
MAX.
5.5
30
8
8
23
-
-
UNIT
V
µA
µA
µA
µA
ns
ns
Chip Disable to Data
Retention Time
Recovery Time
t
RC
*
= Read Cycle Time
t
CDR
t
R
DATA RETENTION WAVEFORM
Low Vcc Data Retention Waveform (1)
(CE# controlled)
V
DR
≧
1.5V
Vcc
Vcc(min.)
t
CDR
CE#
V
IH
CE#
≧
Vcc-0.2V
Vcc(min.)
t
R
V
IH
Low Vcc Data Retention Waveform (2)
(LB#, UB# controlled)
V
DR
≧
1.5V
Vcc
Vcc(min.)
t
CDR
LB#,UB#
V
IH
LB#,UB#
≧
Vcc-0.2V
Vcc(min.)
t
R
V
IH
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
9
LYONTEK [ Lyontek Inc. ]
