Manufacturer Part Number

TC74ACT138P(F)

Description

IC Decoder/Demultiplexer with 1 input and 3:8 output, housed in a 16-pin DIP package. Used for converting binary signals into one active output line from eight possible outputs. Suitable for digital logic and signal distribution systems.

Specifications

Series: TC74ACT

Product Status: Obsolete

Type: Decoder/Demultiplexer

Circuit: 1 input, 3:8 output

Number of Independent Circuits: 1

Output Current Capability: 24mA max (High and Low)

Voltage Supply Range: 4.5V to 5.5V, single supply

Operating Temperature Range: -40°C to +85°C

Mounting Type: Through Hole

Package/Case: 16-DIP (0.300", 7.62mm)

Moisture Sensitivity Level: MSL 1 (unlimited shelf life)

HTSUS Code: 8542.39.0001

ECCN Code: EAR99

In-Stock Quantity: 855 pcs

Device Structure

Three address inputs select one of eight outputs. Only one output is active at a time, others stay low. Typical DIP (dual in-line package) configuration allows easy placement on through-hole PCBs.

Performance Characteristics

Fast switching response, ideal for high-speed digital logic. 24mA drive strength on outputs allows direct interfacing with other logic devices. Stable operation across supply voltage and temperature range. Offers reliable decoding and demultiplexing functions in digital circuits.

Application Environments

Used in digital systems for address decoding, data routing, memory chip selection, and logic signal demultiplexing. Also suitable for microcontroller I/O expansion, control panels, and selection circuits in industrial and commercial electronics.

Selection Guidelines

Choose TC74ACT138P(F) if you need a high-speed decoder/demux in DIP format, operating at 5V. Ensure through-hole mounting fits your design and that supply voltage and output current meet your application requirements. Note product is obsolete; consider stock availability and potential need for alternatives.

Usage Considerations

Verify DIP footprint compatibility on your board. Check supply voltage and current requirements before use. Protect unused input pins from floating. Double-check temperature range fits your operating environment. Handle obsolete status by planning for substitutes and long-term support.

Potential Equivalent/Replacement Models

There are alternative and equivalent models available. Recommended substitutes include CD74ACT238E and CD74ACT138E. These offer similar decoding functions and package types. If you need other options or direct replacements, please contact Ariat-Tech sales team for more information and custom support.

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