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SN74ALS138N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
SN74ALS138NTI451Yes

SN74ALS138N** is a **3-line to 8-line decoder/demultiplexer** manufactured by **Texas Instruments (TI)**.

The SN74ALS138N 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 (A0, A1, A2)
  • Number of Output Lines: 8 (active-low Y0-Y7)
  • Supply Voltage Range: 4.5V to 5.5V
  • Operating Temperature Range: 0°C to 70°C
  • Propagation Delay (max): 22 ns
  • Current - Output High, Low: 2.6mA, 24mA
  • Package / Case: PDIP-16
  • Mounting Type: Through Hole

Features:

  • Active-Low Outputs: Outputs are inverted (logic low when selected).
  • Enable Inputs: Three enable inputs (two active-low, one active-high) for flexible control.
  • High-Speed Operation: Suitable for fast logic applications.
  • TTL-Compatible Inputs: Works with standard TTL logic levels.

Applications:

  • Memory address decoding
  • Data routing in multiplexed systems
  • General-purpose logic decoding

This device is part of the ALS (Advanced Low-Power Schottky) family, offering a balance of speed and power efficiency.

(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)

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