MC74ACT138M datasheet(1/11 Pages) ONSEMI

Teilenummer	MC74ACT138M

Bauteilbeschribung	Decoder/Demultiplexer

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Hersteller	ONSEMI [ON Semiconductor]

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March, 2006 − Rev. 6

1

Publication Order Number:

MC74AC138/D

MC74AC138, MC74ACT138

1−of−8

Decoder/Demultiplexer

The MC74AC138/74ACT138 is a high−speed 1−of−8

decoder/demultiplexer. This device is ideally suited for high−speed

bipolar memory chip select address decoding.

The multiple input enables allow parallel expansion to a 1−of−24

decoder using just three MC74AC138/74ACT138 devices or a

1−of−32decoder using four MC74AC138/74ACT138 devices and one

inverter.

• Demultiplexing Capability

• Multiple Input Enable for Easy Expansion

• Active LOW Mutually Exclusive Outputs

• Outputs Source/Sink 24 mA

• ′ACT138 Has TTL Compatible Inputs

w These devices are available in Pb−free package(s). Specifications herein

apply to both standard and Pb−free devices. Please see our website at

www.onsemi.com for specific Pb−free orderable part numbers, or

contact your local ON Semiconductor sales office or representative.

VCC

GND

A0

A1

A2

E1

E2

E3

15

16

14

13

12

11

10

2

1

3

4

567

9

8

O7

O0

O1

O2

O3

O4

O5

O6

Figure 1. Pinout: 16−Lead Packages Conductors

(Top View)

Figure 2. Logic Symbol

A0 A1 A2

E1 E2 E3

O1 O2 O3 O4 O5 O6 O7

O0

PIN ASSIGNMENT

FUNCTION

A0−A2

Address Inputs

E1−E2

Enable Inputs

E3

Enable Input

O0−O7

Outputs

http://onsemi.com

DIP−16

N SUFFIX

CASE 648

1

16

SO−16

D SUFFIX

CASE 751B

1

16

Device

Package

Shipping

ORDERING INFORMATION

MC74AC138N

PDIP−16

25 Units/Rail

MC74AC138D

SOIC−16

48 Units/Rail

MC74AC138DR2

2500 Tape & Reel

TSSOP−16

DT SUFFIX

CASE 948F

MC74AC138DT

TSSOP−16

96 Units/Rail

MC74AC138DTR2 TSSOP−16

SOIC−16

2500 Tape & Reel

MC74ACT138N

PDIP−16

25 Units/Rail

MC74ACT138D

SOIC−16

48 Units/Rail

MC74ACT138DR2

2500 Tape & Reel

MC74ACT138DT

TSSOP−16

96 Units/Rail

MC74ACT138DTR2 TSSOP−16

SOIC−16

2500 Tape & Reel

1

16

See general marking information in the device marking

section on page 6 of this data sheet.

DEVICE MARKING INFORMATION

1

16

EIAJ−16

M SUFFIX

CASE 966

MC74AC138M

EIAJ−16

MC74AC138MEL

EIAJ−16

2000 Tape & Reel

MC74ACT138M

EIAJ−16

MC74ACT138MEL

EIAJ−16

2000 Tape & Reel

50 Units/Rail

Ähnliche Beschreibung - MC74ACT138M

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