SN54LS42J Ver la hoja de datos (PDF) - Motorola => Freescale

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SN54LS42J

ONE-OF-TEN DECODER LOW POWER SCHOTTKY

Motorola => Freescale 

ONE-OF-TEN DECODER

The LSTTL / MSI SN54 / 74LS42 is a Multipurpose Decoder designed to ac-

cept four BCD inputs and provide ten mutually exclusive outputs. The LS42

is fabricated with the Schottky barrier diode process for high speed and is

completely compatible with all Motorola TTL families.

• Multifunction Capability

• Mutually Exclusive Outputs

• Demultiplexing Capability

• Input Clamp Diodes Limit High Speed Termination Effects

CONNECTION DIAGRAM DIP (TOP VIEW)

VCC A0 A1 A2 A3 9 8 7

16 15 14 13 12 11 10 9

NOTE:

The Flatpak version has the

same pinouts (Connection

Diagram) as the Dual In-Line

Package.

12

01

3 4 56

2 3 45

78

6 GND

PIN NAMES

A0 – A3

0 to 9

Address Inputs

Outputs, Active LOW (Note b)

LOADING (Note a)

HIGH

LOW

0.5 U.L.

0.25 U.L.

10 U.L. 5(2.5) U.L.

NOTES:

a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.

b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)

Temperature Ranges.

A0

15

LOGIC DIAGRAM

A1

14

A2

13

A3

12

1

2

3

4

5

6

7

9

10

11

0

1

2

3

4

5

6

7

8

9

VCC = PIN 16

GND = PIN 8

= PIN NUMBERS

FAST AND LS TTL DATA

5-1

SN54/74LS42

ONE-OF-TEN DECODER

LOW POWER SCHOTTKY

16

1

J SUFFIX

CERAMIC

CASE 620-09

16

1

N SUFFIX

PLASTIC

CASE 648-08

16

1

D SUFFIX

SOIC

CASE 751B-03

ORDERING INFORMATION

SN54LSXXJ

SN74LSXXN

SN74LSXXD

Ceramic

Plastic

SOIC

LOGIC SYMBOL

15 14 13 12

A0 A1 A2 A3

012345 6 7 89

1 2 3 4 5 6 7 9 10 11

VCC = PIN 16

GND = PIN 8

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