W24L257A

Publication Release Date: December 1996

- 9 -

Revision A5

Package Dimensions, continued

28-pin Standard Type One TSOP

Controlling dimension: Millimeters

A

A

A

2

1

L

Y

c

E

H

D

D

b

e

Min.

Dimension In Inches

Nom.

Max.

Min.

Nom.

Max.

Symbol

1.20

0.05

0.15

1.05

1.00

0.95

0.17

0.10

11.70

7.90

13.20

0.50

0.00

0

0.20

0.27

0.15

0.21

11.80

11.90

8.00

8.10

13.40

13.60

0.55

0.60

0.70

0.25

0.10

3

5

0.047

0.006

0.041

0.040

0.035

0.007

0.008

0.011

0.004

0.006

0.008

0.461

0.465

0.469

0.311

0.315

0.319

0.520

0.528

0.536

0.022

0.020

0.024

0.028

0.010

0.000

0.004

0

3

5

0.002

A

A

b

c

D

E

e

L

L

Y

1

1

2

A

θ

Dimension In mm

θ

1

Headquarters

No. 4, Creation Rd. III,

Science-Based Industrial Park,

Hsinchu, Taiwan

TEL: 886-3-5770066

FAX: 886-3-5792647

http://www.winbond.com.tw/

Voice & Fax-on-demand: 886-2-7197006

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.,

Taipei, Taiwan

TEL: 886-2-7190505

FAX: 886-2-7197502

Winbond Electronics (H.K.) Ltd.

Rm. 803, World Trade Square, Tower II,

123 Hoi Bun Rd., Kwun Tong,

Kowloon, Hong Kong

TEL: 852-27513100

FAX: 852-27552064

Winbond Electronics North America Corp.

Winbond Memory Lab.

Winbond Microelectronics Corp.

Winbond Systems Lab.

2730 Orchard Parkway, San Jose,

CA 95134, U.S.A.

TEL: 1-408-9436666

FAX: 1-408-9436668

Note: All data and specifications are subject to change without notice.