74HC_HCT257_5

© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 05 — 13 January 2010

11 of 17

NXP Semiconductors

74HC257; 74HCT257

Quad 2-input multiplexer; 3-state

12. Package outline

Fig 9.

Package outline SOT38-4 (DIP16)

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC

JEDEC

JEITA

SOT38-4

95-01-14

03-02-13

c

(e )

1

A

L

e

D

Z

16

1

9

8

E

pin 1 index

b

0

5

10 mm

scale

Note

1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included.

UNIT

A

max.

12

(1)

(1)

(1)

cD

E

e

M

Z

H

L

mm

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

min.

A

max.

b

max.

w

1.73

1.30

0.53

0.38

0.36

0.23

19.50

18.55

6.48

6.20

3.60

3.05

0.254

2.54

7.62

8.25

7.80

10.0

8.3

0.76

4.2

0.51

3.2

inches

0.068

0.051

0.021

0.015

0.014

0.009

1.25

0.85

0.049

0.033

0.77

0.73

0.26

0.24

0.14

0.12

0.01

0.1

0.3

0.32

0.31

0.39

0.33

0.03

0.17

0.02

0.13

DIP16: plastic dual in-line package; 16 leads (300 mil)

SOT38-4