SN74AHC138DR

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SN74AHC138DR

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IC DECODER/DEMUX 1X3:8 16SOIC

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Especificações

Atributo Valor
Package Tape & Reel (TR),Cut Tape (CT)
Series 74AHC
ProductStatus Active
Type Decoder/Demultiplexer
Circuit 1 x 3:8
IndependentCircuits 1
Current-OutputHighLow 8mA, 8mA
VoltageSupplySource Single Supply
Voltage-Supply 2V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 16-SOIC (0.154, 3.90mm Width)

Visão Geral

Description

The SN74AHC138DR is a high-speed 3-to-8 line decoder/demultiplexer, commonly used in digital circuits to decode binary inputs into one of eight outputs. It is part of the AHC (Advanced High-Speed CMOS) logic family, ensuring low power consumption and high performance. The device features three binary select inputs (A, B, C), three enable inputs (G1, G2A, and G2B), and eight active-low outputs (Y0 to Y7).
Key features include:
1. High-Speed Operation: Offers fast response times suitable for high-speed applications.
2. Low Power Consumption: Operates efficiently, conserving power.
3. Wide Voltage Range: Typically operates at 2.0V to 5.5V, making it versatile for various systems.
4. Enable Inputs: Allows for easy cascading of multiple decoders.
The SN74AHC138DR is commonly used in applications requiring address decoding, data routing, or signal demultiplexing. It is housed in an SOIC-16 (Small Outline Integrated Circuit) package, making it suitable for surface-mount technology.

Equivalent

The SN74AHC138DR is a 3-to-8 line decoder/demultiplexer. Equivalent products include:
1. 74HC138 by NXP
2. CD74HC138 by Texas Instruments
3. MC74HC138 by ON Semiconductor
4. TC74HC138 by Toshiba
5. MM74HC138 by Fairchild Semiconductor
These equivalents offer similar functionality and are widely used in digital circuits for decoding applications. Always check the datasheet for specific electrical characteristics and compatibility.

Features

The SN74AHC138DR is a high-speed 3-to-8 line decoder/demultiplexer. Key features include:
1. High-Speed Operation: Offers a typical propagation delay of around 6.5 ns, making it suitable for high-speed applications.
2. Low Power Consumption: Consumes less power due to advanced CMOS technology.
3. Operating Voltage: Supports a wide voltage range from 2V to 5.5V, providing flexibility for various applications.
4. Inputs and Outputs: Features 3 binary control inputs, 8 outputs, and 3 enable inputs that allow for expansion to a 1-of-32 decoder using multiple chips.
5. Output Drive: Can drive up to 8 LSTTL loads, facilitating strong signal integrity across systems.
6. Latch-Up Performance: Exhibits excellent latch-up performance, compliant with JEDEC standard JESD-17.
7. Package: Available in SOIC-16 (Small Outline Integrated Circuit) packaging for space-efficient design implementations.
These features make the SN74AHC138DR ideal for applications requiring efficient decoding with minimal power usage and fast operational speeds.

Manufacturer

The SN74AHC138DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a broad portfolio of analog and embedded processing chips. The company is known for its innovation in the electronics industry, providing essential components for a wide range of electronic devices and systems. TI's products are used in applications such as industrial systems, automotive electronics, personal electronics, communications equipment, and enterprise systems. The company is renowned for its commitment to research and development, continuously advancing technology to meet the evolving needs of its customers.

Application

The SN74AHC138DR is a 3-to-8 line decoder/demultiplexer commonly used in digital circuits. Its application areas include:
1. Memory Address Decoding: Facilitates the selection of specific memory locations in microprocessor systems.
2. Data Routing: Directs data paths in communication systems.
3. Multiplexing/Demultiplexing: Used in data multiplexing applications to select one of the several input lines.
4. Signal Gating: Controls signal flow in digital systems, enabling or disabling specific parts.
5. Peripheral Device Selection: Helps in selecting peripheral devices in embedded systems.
Its high-speed operation and low power consumption make it suitable for various industrial and consumer electronics applications.

Package

The SN74AHC138DR is a 3-to-8 line decoder/demultiplexer from Texas Instruments, housed in a small outline integrated circuit (SOIC) package. The "DR" in the part number indicates that it has 16 pins and follows the industry-standard SOIC-16 package dimensions.

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