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74HCT138PW - 3-to-8 line decoder/demultiplexer

Download the 74HCT138PW datasheet PDF (74HC138 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for 3-to-8 line decoder/demultiplexer.

Description

The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7).

Features

  • Wide supply voltage range from 2.0 to 6.0 V.
  • CMOS low power dissipation.
  • High noise immunity.
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
  • Demultiplexing capability.
  • Multiple input enable for easy expansion.
  • Ideal for memory chip select decoding.
  • Active LOW mutually exclusive outputs.
  • Input levels:.
  • For 74HC138: CMOS level.
  • For 74HCT138: TTL level.
  • Complies with JEDEC.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74HC138-nexperia.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number 74HCT138PW
Manufacturer nexperia
File Size 269.86 KB
Description 3-to-8 line decoder/demultiplexer
Datasheet download datasheet 74HCT138PW Datasheet

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Full PDF Text Transcription

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74HC138; 74HCT138 3-to-8 line decoder/demultiplexer; inverting Rev. 9 — 13 August 2021 Product data sheet 1. General description The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '138 ICs and one inverter. The '138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes.
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