Mfr Part #:

74hct138n

Mfr Name: Philips

The Philips 74HCT138N is a high-speed Si-gate CMOS 3-to-8 line decoder/demultiplexer. It features active LOW mutually exclusive outputs and multiple input enables for easy expansion.

✓ Total Stock: 15 pcs

$ Price Range: $1.27

74hct138n Available from 1 distributor

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✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
DYNACO PRODUCTS ✓ Non-Authorised Inventory information	15 pcs On Request	15 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

74hct138n Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Philips
Lead Spacing	2.54 mm
Lead Style	Dual-In-Line
Mounting Type	Through Hole
Operating Temperature	-40 to +125 °C
Storage Temperature	-65°C ~ 150°C
Tape & Reel	No

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74hct138n Description

Short technical summary and product information.

The 74HC138; 74HCT138 from Philips is a high-speed Si-gate CMOS device that functions as a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs and provides eight mutually exclusive active LOW outputs. The device features three enable inputs: two active LOW (E1, E2) and one active HIGH (E3), allowing for easy parallel expansion to create larger decoders.

This decoder is ideal for memory chip select decoding applications. It can also be used as an eight-output demultiplexer by utilizing one of the enable inputs as the data input. The 74HC138; 74HCT138 is pin compatible with Low-power Schottky TTL (LSTTL).

Key features include demultiplexing capability, multiple input enables for easy expansion, and active LOW mutually exclusive outputs. The device complies with JEDEC standard no. 7A and offers ESD protection exceeding 2000 V for HBM and 200 V for MM.

This specific part, the 74HCT138N, is supplied in a 16-lead plastic dual in-line package (DIP16) and is specified for operation over a temperature range of -40 °C to +125 °C.

74hct138n Quick Information

Product Type: Decoder/Demultiplexer

Series: 74HCT

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

Subcategory: Logic

74hct138n Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

74hct138n Estimated Pricing

Qty	Low	High
1+	$1.27	$1.27

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

74hct138n Features

High-speed Si-gate CMOS device.
3-to-8 line decoder/demultiplexer.
Eight mutually exclusive active LOW outputs.
Multiple input enable for easy expansion.
Specified from -40 °C to +125 °C.

74hct138n Applications

Ideal for memory chip select decoding.
Used as an eight output demultiplexer.
Suitable for logic expansion.
Pin compatible with LSTTL.

74hct138n FAQs

5 frequently asked questions generated from this part’s specifications.

What are the typical propagation delays for the 74HCT138N?

For the 74HC138 variant, typical propagation delays are 12 ns from address to output and 14 ns from enable to output. For the 74HCT138 variant, these are 17 ns and 19 ns, respectively.

What is the operating temperature range for the 74HCT138N?

The 74HCT138N is specified for operation from -40 °C to +125 °C.

What package type is the 74HCT138N supplied in?

The 74HCT138N is supplied in a 16-lead plastic dual in-line package (DIP16).

What is the RoHS status of the 74HCT138N?

The RoHS status is RoHS3 Compliant.

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

The Moisture Sensitivity Level (MSL) is 1 Unlimited.