W24257 参数 Datasheet PDF下载

W24257

DATA RETENTION CHARACTERISTICS

(T

A

= 0 to 70° C for LL/L; -20 to 85° C for LE )

PARAMETER

V

DD

for Data Retention

Data Retention Current

SYM.

V

DR

TEST CONDITIONS

#CS

≥

V

DD

-0.2V

V

DD

= 3V

L

MIN. TYP. MAX. UNIT

2.0

-

-

0

T

RC

*

-

-

-

-

-

-

15

30

-

-

V

µA

µA

nS

nS

I

DDDR

#CS

≥

V

DD

-0.2V LL/LE

T

CDR

T

R

See data retention

Waveform

Chip Deselect to Data Retention Time

Operation Recovery Time

T

RC

*

= Read Cycle Time

DATA RETENTION WAVEFORM

DATA RETENTION MODE

V

DD

4.5V

T

C D R

#CS

V

IH

#CS1 > V

D D

-0.2V

=

V

D R

> 2V

=

4.5V

T

R

V

IH

ORDERING INFORMATION

PART NO.

ACCESS OPERATING

TIME

CURRENT

(nS)

MAX. (mA)

70

70

70

70

70

70

70

70

70

70

70

70

STANDBY

CURRENT

MAX. (

µA

)

15

30

15

15

30

15

OPERATING

TEMP.

(°C)

0 to 70

0 to 70

-20 to 85

0 to 70

0 to 70

-20 to 85

PACKAGE

W24257S-70LL

W24257S-70L

W24257S-70LE

W24257Q-70LL

W24257Q-70L

W24257Q-70LE

330 mil SOP

330 mil SOP

330 mil SOP

Standard type one TSOP

Standard type one TSOP

Standard type one TSOP

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.

-7-

Publication Release Date: February 2001

Revision A16