74LCX138FT

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74LCX138FT

IC DECODER/DEMUX 1X3:8 16TSSOPB

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Thông số kỹ thuật

Package Tape & Reel (TR),Cut Tape (CT)
Series 74LCX
ProductStatus Active
Type Decoder/Demultiplexer
Circuit 1 x 3:8
IndependentCircuits 1
Current-OutputHighLow 24mA, 24mA
VoltageSupplySource Single Supply
Voltage-Supply 1.65V ~ 3.6V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 16-TSSOP (0.173, 4.40mm Width)

Tổng quan

Description

The 74LCX138FT is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It converts a 3-bit binary input into one of eight active low outputs. This device operates from a single power supply, typically ranging from 2.0V to 5.5V, making it suitable for various applications in both low and high voltage systems.
Key features include a wide operating temperature range, low power consumption, and compatibility with both TTL and CMOS logic levels. The 74LCX138FT has three enable inputs, allowing for easy integration in larger digital circuits. Its fast propagation delay ensures quick response times, making it ideal for high-speed applications.
Additionally, the device's outputs can drive TTL-level loads, further enhancing its utility in logic design. Applications include memory address decoding, data routing, and various digital control functions. Overall, the 74LCX138FT is a versatile and efficient component in modern digital electronics.

Features

The 74LCX138FT is a low-voltage CMOS decoder/demultiplexer that operates with a wide supply voltage range of 2.0V to 5.5V, making it suitable for various applications. Key features include:
1. 3-to-8 Decoder/Demultiplexer: It takes three binary inputs and decodes them into one of eight outputs.
2. Low Power Consumption: Consumes significantly less power compared to traditional TTL devices.
3. High Speed: Capable of operating up to 5 GHz, ideal for high-performance applications.
4. TTL Compatible Inputs: Accepts standard TTL logic levels, ensuring easy integration into existing designs.
5. Active Low Outputs: Outputs are active low, allowing for straightforward interfacing with other logic devices.
6. Enable Inputs: Includes enable pins for controlling the output states.
7. Temperature Range: Operates across a wide temperature range, making it suitable for various environments.
These features make the 74LCX138FT suitable for digital circuits, communication systems, and other applications requiring efficient signal routing.

Package

The 74LCX138FT is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.

Pinout

The 74LCX138FT is a 3-to-8 line decoder/demultiplexer with a total of 20 pins. Its main functions include decoding binary inputs into a single active low output, enabling multiple output lines based on selected inputs, and providing a means for demultiplexing data.
Key pin functions are as follows:
- Inputs (A0, A1, A2): 3 binary inputs for selecting one of the 8 outputs.
- Enable Inputs (G1, G2A, G2B): 3 enable inputs to control the activation of the decoder; G1 must be high, while G2A and G2B must be low to enable the decoder.
- Outputs (Y0 to Y7): 8 outputs that represent the decoded result; one output is low based on the binary value of the inputs.
- VCC: Power supply pin.
- GND: Ground pin.
The device operates at a wide supply voltage range and is designed for high-speed performance with low power consumption.

Manufacturer

The 74LCX138FT is manufactured by Texas Instruments (TI), a major American technology company. Texas Instruments specializes in designing and manufacturing semiconductors, particularly integrated circuits (ICs) used in various applications including computing, telecommunications, automotive, and consumer electronics. Founded in 1930, TI is known for its innovations in analog and embedded processing technologies, as well as digital signal processing. The 74LCX138FT is a high-speed, low-power 3-to-8 line decoder/demultiplexer, part of the LCX series which is designed for use in modern digital circuits.

Application

The 74LCX138FT is a low-voltage, high-speed 3-to-8 line decoder/demultiplexer. Its application areas include digital signal routing, memory address decoding, chip select signals in microcontroller systems, and data multiplexing. It is commonly used in communication systems, logic circuits, and as part of larger integrated systems in consumer electronics and industrial automation. Its compatibility with low-voltage logic levels makes it suitable for portable and battery-operated devices.

Equivalent

The 74LCX138FT is a 3-to-8 line decoder/demultiplexer. Equivalent products include:
- 74LVC138A
- 74HC138
- 74HCT138
These alternatives may vary in voltage levels and speed characteristics, but they serve similar functions in digital circuits. Always check specific datasheets for compatibility.

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