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SN74F138DR Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SN74F138DRTI17500Yes

SN74F138DR** is a 3-line to 8-line decoder/demultiplexer manufactured by **Texas Instruments (TI)**.

The SN74F138DR is a 3-line to 8-line decoder/demultiplexer manufactured by Texas Instruments (TI).

Key Specifications:

  • Logic Type: Decoder/Demultiplexer
  • Number of Input Lines: 3
  • Number of Output Lines: 8 (active-low)
  • Supply Voltage Range: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay (Max): 7.5 ns
  • Current - Output High, Low: 1 mA, 20 mA
  • Package: SOIC-16
  • Mounting Type: Surface Mount

Descriptions:

The SN74F138DR decodes three binary address inputs (A0, A1, A2) into one of eight mutually exclusive outputs (Y0-Y7). It features three enable inputs (G1, G2A, G2B) that must be asserted for proper operation.

Features:

  • High-Speed Operation: Optimized for fast switching applications.
  • Active-Low Outputs: Outputs are low when selected.
  • Multiple Enable Inputs: Allows for easy expansion.
  • Wide Operating Voltage: Supports standard TTL levels.
  • Low Power Consumption: Designed for efficient power usage.

This device is commonly used in memory addressing, data routing, and signal demultiplexing applications.

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