W24256-70 Winbond, W24256-70 Datasheet - Page 7

• Manufacturer Part Number: W24256-70
• Description: 32K X 8 CMOS STATIC RAM
• Manufacturer: Winbond

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