Preliminary W24256
DATA RETENTION CHARACTERISTICS
(TA = 0 C to 70 C)
°
°
PARAMETER
SYM.
TEST CONDITIONS
MIN. TYP. MAX. UNIT
DD
DR
V
for Data Retention
V
2.0
-
-
-
-
5.5
20
-
V
DD
CS ³
CS ³
V
V
-0.2V
-0.2V, V = 3V
DDDR
Data Retention Current
I
m
A
DD
DD
CDR
Chip Deselect to Data
Retention Time
T
See data retention waveform
0
nS
R
T
RC
T
Operation Recovery Time
*
-
-
nS
Read Cycle Time
*
DATA RETENTION WAVEFORM
DD
V
0.9 DD
V
0.9VDD
>
DR
>
V
2V
=
T
CDR
R
T
IH
IH
V
V
DD
V
CS
- 0.2V
CS
=
ORDERING INFORMATION
PART NO.
ACCESS
TIME
OPERATING
CURRENT MAX. CURRENT MAX.
STANDBY
PACKAGE
(nS)
(mA)
60
( A)
m
W24256-70L
70
70
70
70
70
70
100
50
600 mil DIP
600 mil DIP
330 mil SOP
330 mil SOP
W24256-70LL
W24256S-70L
W24256S-70LL
W24256Q-70L
W24256Q-70LL
60
60
100
50
60
60
100
50
Standard type one TSOP
Standard type one TSOP
60
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.
Publication Release Date: October 1999
- 7 -
Revision A1
WINBOND [ WINBOND ]
