Owner manual

W24257
Publication Release Date: April 1997
- 7 - Revision A11
DATA RETENTION CHARACTERISTICS
(TA = 0 to 70° C)
PARAMETER SYM. TEST CONDITIONS MIN. TYP. MAX. UNIT
VDD for Data Retention VDR
CS
≥ VDD -0.2V
2.0 - - V
Data Retention Current IDDDR
CS
≥ VDD -0.2V
LL - - 20
µA
VDD = 3V L - - 50
µA
Chip Deselect to Data Retention Time TCDR See data retention 0 - - nS
Operation Recovery Time TR waveform TRC* - - nS
TRC* = 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
VIH 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.