SN74ALS138ADB
- Mfr.Part #
- SN74ALS138ADB
- Manufacturer
- Texas Instruments
- Package / Case
- 16-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- DECODER/DEMUX SINGLE 3-TO-8
- Stock
- 7,440
- In Stock :
- 7,440
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- Manufacturer :
- Texas Instruments
- Product Category :
- Signal Switches, Multiplexers, Decoders
- Package / Case :
- 16-SOIC (0.154, 3.90mm Width)
- Series :
- 74ALS
- Package :
- Bulk
- Voltage Supply Source :
- Single Supply
- Independent Circuits :
- 1
- Product Status :
- Active
- Voltage - Supply :
- 4.5V ~ 5.5V
- Mounting Type :
- Surface Mount
- Type :
- Decoder/Demultiplexer
- Operating Temperature :
- 0°C ~ 70°C
- Supplier Device Package :
- 16-SOIC
- Current - Output High, Low :
- 400µA, 8mA
- Circuit :
- 1 x 3:8
- Datasheets
- SN74ALS138ADB

Signal Switches, Multiplexers, Decoders Texas Instruments SN74ALS138ADB Overview
The Texas Instruments SN74ALS138ADB represents a crucial component in the domain of digital signal processing. This integrated circuit is a high-performance single 3-to-8 decoder/demultiplexer, designed to facilitate efficient data handling and routing in complex electronic systems. The ability of the SN74ALS138ADB to decode and demultiplex inputs into eight distinct outputs makes it a versatile choice for various applications, from data routing to signal control. With Texas Instruments' commitment to quality and reliability, this decoder/demultiplexer ensures accurate and stable performance, making it a preferred choice for demanding digital environments.
SN74ALS138ADB Features
This particular model boasts several features that enhance its utility and robustness in electronic circuits, including:
- High-speed operation, which is essential for modern, fast-paced applications.
- Low power consumption, making it suitable for power-sensitive installations.
- Wide operating voltage range, allowing flexibility across different voltages for diverse applications.
- Output drive capability, compatible with TTL (Transistor-Transistor Logic) levels, enhancing its integration with other TTL logic components.
- Three select inputs to control the demultiplexing function, providing better control over the routing of signals.
SN74ALS138ADB Applications
- Microprocessor Systems: The SN74ALS138ADB is commonly used to expand the output lines through its decoding capability, which is crucial for address selection in microprocessor and microcontroller applications.
- Data Multiplexing: It excels in applications requiring data multiplexing, where multiple inputs need to be routed to one output line, thus simplifying the circuit design.
- Memory Chip Selection: Ideal for selecting memory chips in complex digital systems, where several chips can be controlled by a single decoder/demultiplexer.
- Control Systems: Useful in control systems for industrial and consumer electronics, where precise signal routing and decision-making are necessary.
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