74HC_HCT257_5

© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 05 — 13 January 2010

2 of 17

NXP Semiconductors

74HC257; 74HCT257

Quad 2-input multiplexer; 3-state

3.

Ordering information

4.

Functional diagram

Table 1.

Ordering information

Type number

Package

Temperature range

Name

Description

Version

74HC257N

−40 °C to +125 °C

DIP16

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

SOT38-4

74HCT257N

74HC257D

−40 °C to +125 °C

SO16

plastic small outline package; 16 leads; body width 3.9 mm SOT109-1

74HCT257D

74HC257DB

−40 °C to +125 °C

SSOP16

plastic shrink small outline package; 16 leads;

body width 5.3 mm

SOT338-1

74HCT257DB

74HC257PW

−40 °C to +125 °C

TSSOP16

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

SOT403-1

74HCT257PW

Fig 1.

Logic symbol

Fig 2.

IEC logic symbol

mga835

S

OE

1Y

2Y

3Y

4Y

2

3

5

6

11

10

14

13

15

1

4

7

9

12

1I

0

1I

1

2I

0

2I

1

3I

0

3I

1

4I

0

4I

1

001aad467

15

1

G1

1

MUX

1

4

2

3

7

5

6

9

11

10

12

14

13

EN