Data retention characteristics, Data retention waveform, Ordering information – Rainbow Electronics W24257 User Manual
Page 7
W24257
Publication Release Date: April 1997
- 7 -
Revision A11
DATA RETENTION CHARACTERISTICS
(T
A
= 0 to 70
°
C)
PARAMETER
SYM.
TEST CONDITIONS
MIN. TYP. MAX. UNIT
V
DD
for Data Retention
V
DR
CS
≥
V
DD
-0.2V
2.0
-
-
V
Data Retention Current
I
DDDR
CS
≥
V
DD
-0.2V
LL
-
-
20
µ
A
V
DD
= 3V
L
-
-
50
µ
A
Chip Deselect to Data Retention Time
T
CDR
See data retention
0
-
-
nS
Operation Recovery Time
T
R
waveform
T
RC
*
-
-
nS
T
RC
*
= Read Cycle Time
DATA RETENTION WAVEFORM
4.5V
V
> 2V
DATA RETENTION MODE
CS
4.5V
=
=
DR
-0.2V
CS1 > V
DD
V
DD
T
R
T
CDR
V
IH
V
IH
ORDERING INFORMATION
PART NO.
ACCESS
TIME (nS)
OPERATING
CURRENT
MAX. (mA)
STANDBY
CURRENT
MAX. (mA)
PACKAGE
W24257-70LL
70
80
50
600 mil DIP
W24257-70L
70
80
100
600 mil DIP
W24257-10L
100
70
100
600 mil DIP
W24257S-70LL
70
80
50
330 mil SOP
W24257S-70L
70
80
100
330 mil SOP
W24257S-10L
100
70
100
330 mil SOP
W24257K-70LL
70
80
50
300 mil Skinny
W24257K-70L
70
80
100
300 mil Skinny
W24257K-10L
100
70
100
300 mil Skinny
W24257J-70LL
70
80
50
300 mil SOJ
W24257J-70L
70
80
100
300 mil SOJ
W24257J-10L
100
70
100
300 mil SOJ
Notes:
1. Winbond reserves the right to make changes to its products without prior notice.
2. Purchasers are responsible for performing appropriate quality assurance testing on products intended for use in
applications where personal injury might occur as a consequence of product failure.