Multiplexers | MC74AC138

1-of-8 Decoder/Demultiplexer

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Overview

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-32 decoder 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
  • 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.

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MC74AC138DG

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CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

TUBE

48

N

1

2

6

9.5

24

$0.3397

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MC74AC138DR2G

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CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

1

2

6

9.5

24

$0.2873

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MC74AC138DTR2G

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CAD Model

Pb

A

H

P

TSSOP-16

948F-01

1

260

REEL

2500

N

1

2

6

9.5

24

$0.2416

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Reliability Data

Die Related Summary Data

Device: MC74AC138DG

Equivalent to wafer fab process: CMOS SUB

Product Technology

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Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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