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74HCT138AP Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
74HCT138APTOS101Yes

74HCT138AP** is a **3-to-8 line decoder/demultiplexer** manufactured by **Toshiba (TOS)**.

The 74HCT138AP is a 3-to-8 line decoder/demultiplexer manufactured by Toshiba (TOS).

Key Specifications:

  • Logic Family: HCT (High-speed CMOS with TTL compatibility)
  • Supply Voltage (VCC): 4.5V to 5.5V
  • Input Levels: TTL-compatible
  • Output Current: ±4mA (sink/source)
  • Propagation Delay: Typically 18ns at 5V
  • Operating Temperature Range: -40°C to +85°C
  • Package: DIP-16 (Plastic Dual In-line Package)

Descriptions:

  • Decodes three binary address inputs (A0, A1, A2) into eight mutually exclusive outputs (Y0-Y7).
  • Features three enable inputs (E1, E2, E3) for flexible control.
  • Low-power CMOS technology with high noise immunity.

Features:

  • TTL-Compatible Inputs (works with 5V logic systems)
  • Active-Low Outputs (outputs are low when selected)
  • Demultiplexing Capability (can function as a 1-to-8 demux)
  • Low Power Consumption (suitable for battery-operated devices)
  • Wide Operating Voltage Range (4.5V to 5.5V)

This IC is commonly used in address decoding, memory selection, and data routing in digital systems.

Would you like additional details on pin configuration or truth table?

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