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MC74AC138DR2 The On Semiconductor MC74AC138DR2 is a high-speed 1-of-8 decoder/demultiplexer. It operates within a 2V to 6V supply voltage range and is housed in a 16-SOIC package.
Mfr Part #:

MC74AC138DR2

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor MC74AC138DR2 is a high-speed 1-of-8 decoder/demultiplexer. It operates within a 2V to 6V supply voltage range and is housed in a 16-SOIC package.
✓ Total Stock: 6,961 pcs
$ Price Range: $1.27

MC74AC138DR2 Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
OTL Components ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
1,961 pcs
On Request
1961 pcs On Request 1 On Request On Request On Request On Request On Request
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MC74AC138DR2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Current
Independent Circuits
Mounting Type
Operating Temperature
SVHC Present
Supplier Device Package
Tape & Reel
Type
Voltage
Voltage Supply Source
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MC74AC138DR2 Description

Short technical summary and product information.

The MC74AC138DR2 from On Semiconductor is a high-speed 1-of-8 decoder/demultiplexer designed for applications such as high-speed bipolar memory chip select address decoding.

 

This device features three binary weighted inputs (A0, A1, A2) and eight mutually exclusive active-LOW outputs (O0-O7). It includes three enable inputs: two active-LOW (E1, E2) and one active-HIGH (E3). The device can be expanded to a 1-of-32 decoder using additional MC74AC138/74ACT138 devices and an inverter.

 

Key electrical characteristics include a wide operating voltage range of 2V to 6V and output current sourcing/sinking capability of 24mA. The operating temperature range is -40°C to 85°C.

 

The MC74AC138DR2 is supplied in a 16-SOIC surface mount package with dimensions of 0.154" (3.90mm) width. It is Pb-Free and RoHS3 compliant.

MC74AC138DR2 Quick Information

Product Type: Decoder/Demultiplexer
Series: MC74AC
Canonical Name: MC74AC138DR2 Decoder/Demultiplexer
Subcategory: Logic

MC74AC138DR2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

MC74AC138DR2 Estimated Pricing

Qty Low High
1+ $1.27 $1.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

MC74AC138DR2 Features

  • High-speed 1-of-8 decoder/demultiplexer.
  • Operates from 2V to 6V supply voltage.
  • Outputs source and sink 24mA.
  • Multiple enable inputs for expansion.
  • Surface mount 16-SOIC package.

MC74AC138DR2 Applications

  • Ideal for memory chip select decoding.
  • Used in high-speed address decoding.
  • Supports parallel expansion to larger decoders.
  • Can function as an 8-output demultiplexer.

MC74AC138DR2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

2V to 6V single supply.

What is the package type?

16-SOIC (0.154", 3.90mm Width) surface mount package.

What is the operating temperature range?

-40°C to 85°C.

Is the MC74AC138DR2 lead-free?

Yes, the device is lead-free (Pb-Free) as per datasheet.

What is the output current capability?

Each output can source or sink 24 mA.

What is the circuit configuration?

1 x 3:8 decoder/demultiplexer.

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