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74HCT138N The 74HCT138N from PORTUGAL is a high-speed Si-gate CMOS 3-to-8 line decoder/demultiplexer with active LOW outputs. It features multiple enable inputs for easy expansion.
Mfr Part #:

74HCT138N

Available from 1 distributors
Mfr Name: PORTUGAL
PORTUGAL
The 74HCT138N from PORTUGAL is a high-speed Si-gate CMOS 3-to-8 line decoder/demultiplexer with active LOW outputs. It features multiple enable inputs for easy expansion.
Total Stock: 22 pcs
$ Price Range: $0.30

74HCT138N Available from 1 distributor

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22 pcs
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74HCT138N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Input Capacitance
Mounting Type
Operating Temperature

74HCT138N Description

Short technical summary and product information.

The 74HCT138N by PORTUGAL is a versatile 3-to-8 line decoder and demultiplexer IC. It accepts three binary weighted address inputs and provides 8 mutually exclusive active LOW outputs. The device features three enable inputs (two active LOW, one active HIGH), facilitating easy parallel expansion to larger decoding functions.

 

This decoder is ideal for memory chip select decoding and can also function as an eight-output demultiplexer. It is specified for operation across a wide temperature range of -40°C to +125°C. The 74HCT138N is pin-compatible with Low-power Schottky TTL (LSTTL) and comes in a DIP16 package.

 

Key electrical characteristics include input capacitance of 3.5 pF and power dissipation capacitance of 67 pF. Propagation delays from address inputs to outputs are typically 12 ns, and from enable inputs to outputs are typically 14 ns. ESD protection is rated above 2000 V for HBM and above 200 V for MM.

74HCT138N Quick Information

Product Type: 3-to-8 Line Decoder/Demultiplexer
Canonical Name: 74HCT138N 3-to-8 Line Decoder/Demultiplexer
Subcategory: 3-to-8 Line

74HCT138N Compliance

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

74HCT138N Estimated Pricing

Qty Low High
1+ $0.30 $0.30

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

74HCT138N Features

  • High-speed Si-gate CMOS decoder/demultiplexer
  • 8 mutually exclusive active LOW outputs
  • Multiple input enable for easy expansion
  • Wide operating temperature range: -40°C to +125°C
  • Through-hole DIP16 package

74HCT138N Applications

  • Suitable for digital decoding applications.
  • Used in memory chip select decoding.
  • Ideal for demultiplexer and multiplexer circuits.
  • Applicable in high-speed logic switching.
  • Suitable for electronic control systems.

74HCT138N FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the 74HCT138N?

-40 to +125 °C

What type of package does the 74HCT138N come in?

DIP16

What is the RoHS status of the 74HCT138N?

RoHS3 Compliant

What is the Moisture Sensitivity Level (MSL) for the 74HCT138N?

1 Unlimited

What are the typical propagation delays for the 74HCT138N?

12 ns (A to Yn), 14 ns (E3 to Yn), 14 ns (En to Yn)

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