SN74HC138DR

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SN74HC138DR

IC DECODER/DEMUX 1X3:8 16SOIC

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Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT)
Series 74HC
ProductStatus Active
Type Decoder/Demultiplexer
Circuit 1 x 3:8
IndependentCircuits 1
Current-OutputHighLow 5.2mA, 5.2mA
VoltageSupplySource Single Supply
Voltage-Supply 2V ~ 6V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 16-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The SN74HC138DR is a high-speed CMOS decoder/demultiplexer designed for use in various digital applications. It features three input lines (A0, A1, A2) that enable it to decode a three-bit binary number into one of eight active low outputs (Y0 to Y7). The device is designed to operate with a wide voltage supply range (2V to 6V), making it versatile for different circuits.
Key features include three enable inputs (G1, G2A, G2B) that control the operation of the device, allowing for cascading multiple decoders. It also boasts fast propagation delay times, typically around 15 ns at 5V, ensuring quick response in high-speed applications.
The SN74HC138DR is commonly used in applications such as memory address decoding, data routing, and signal demultiplexing. Its small package size (SOP-20) allows easy integration into compact designs. Overall, the SN74HC138DR is an efficient and reliable component for digital logic design.

Features

The SN74HC138DR is a high-speed CMOS 3-to-8 line decoder/demultiplexer. Key features include:
1. Decoding Capability: It converts a 3-bit binary input into one of eight active low outputs.
2. Enable Inputs: It has three enable inputs (G1, G2A, G2B) that facilitate cascading and control of the outputs.
3. Wide Supply Voltage: Operates across a power supply range of 2V to 6V, making it compatible with various logic levels.
4. High-Speed Operation: Typical propagation delay is 4.5 ns at 5V, ensuring fast signal processing.
5. Low Power Consumption: Consumes low static power, suitable for battery-operated devices.
6. Fan-out: Can drive up to 10 LS-TTL loads, providing versatile interfacing options.
7. Package Type: Available in the SOIC-16 package (DR), suitable for surface mounting.
These features make the SN74HC138DR ideal for applications in memory address decoding, data routing, and control signal generation in digital circuits.

Package

The SN74HC138DR is packaged in a "SOIC" (Small Outline Integrated Circuit) type, specifically a 16-pin SOIC (300 mil) package. This surface-mount package is designed for easy handling and integration into circuit boards.

Manufacturer

The SN74HC138DR is manufactured by Texas Instruments (TI), a global technology company. Texas Instruments designs and produces a wide range of semiconductor products and integrated circuits, specializing in analog, embedded processing, and digital signal processing technologies. Founded in 1930, TI is known for its innovations in electronics and has a diverse portfolio that serves various industries, including automotive, industrial, communications, and consumer electronics. The company focuses on providing high-performance and reliable solutions for electronic applications worldwide.

Application

The SN74HC138DR is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It is commonly used in applications such as data routing, memory address decoding, and selecting among multiple devices in digital circuits. Additionally, it can facilitate logic level translation, multiplexing, and control signal distribution in microcontroller and FPGA interfacing. Its low power consumption and fast switching speeds make it suitable for various consumer electronics and communication systems.

Equivalent

Equivalent products to the SN74HC138DR include the 74HC138, 74LS138, and 74HCT138. Other variants may include the 74AC138 and 74AHC138, which offer similar functionality but may have different power supply requirements or speed characteristics. Always check the specific voltage, speed, and compatibility with your application.

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