SN54HC257, SN54HC258, SN74HC257, SN74HC258

QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS

WITH 3STATE OUTPUTS

SCLS224B − DECEMBER 1982 − REVISED SEPTEMBER 2003

3

POST OFFICE BOX 655303

’HC258 logic diagram (positive logic)

4Y

3Y

2Y

1Y

A/B

G

4B

4A

3B

3A

2B

2A

1B

1A

4

2

3

7

5

6

9

11

10

12

14

13

1

15

Pin numbers shown are for the D, J, N, NS, and PW packages.

−0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±35 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±70 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

73

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N package

67

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NS package

64

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PW package

108

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.