MC54F138N データシートの表示（PDF） - Motorola => Freescale

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MC54F138N

1-OF-8 DECODER/DEMULTIPLEXER FAST™ SHOTTKY TTL

Motorola => Freescale 

1-OF-8 DECODER/

DEMULTIPLEXER

The MC54/74F138 is a high speed 1-of-8 Decoder/Demultiplexer. This de-

vice is ideally suited for high speed bipolar memory chip select address de-

coding. The multiple input enables allow parallel expansion to a 1-of-24 de-

coder using just three F138 devices or to a 1-of-32 decoder using four F138s

and one inverter.

• Demultiplexing Capability

• Multiple Input Enable for Easy Expansion

• Active Low Mutually Exclusive Outputs

• Input Clamp Diodes Limit High-Speed Termination Effects

CONNECTION DIAGRAM DIP (TOP VIEW)

VCC O0 O1 O2 O3 O4 O5 O6

16 15 14 13 12 11 10 9

12345678

A0 A1 A2 E1 E2 E3 O7 GND

A2 A1 A0

3

2

1

LOGIC DIAGRAM

E1 E2 E3

4 56

VCC = PIN 16

GND = PIN 8

= PIN NUMBERS

7

9

10

11

12

13

14

15

O7 O6 O5 O4 O3 O2 O1 O0

MC54/74F138

1-OF-8 DECODER/

DEMULTIPLEXER

FAST™ SHOTTKY TTL

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

MC54FXXXJ

MC74FXXXN

MC74FXXXD

Ceramic

Plastic

SOIC

LOGIC SYMBOL

1 2 3 456

123

A0 A1 A2

O0 O1 O2 O3 O4 O5 O6 O7

15 14 13 12 11 10 9 7

VCC = PIN 16

GND = PIN 8

FAST AND LS TTL DATA

4-53

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