CD74HCT243M

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CD74HCT243M

IC TXRX NON-INVERT 5.5V 14-SOIC

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規格

Series 74HCT
Part Status Active
Logic Type Transceiver, Non-Inverting
Number of Elements 1
Number of Bits per Element 4
Output Type 3-State
Current - Output High, Low 6mA, 6mA
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -55°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case 14-SOIC (0.154", 3.90mm Width)
Supplier Device Package 14-SOIC
Base Product Number 74HCT243

概述

Description

The CD74HCT243M is a high-speed hex buffer/driver with three-state outputs, designed for use in digital circuits. It features six independent buffers, which are capable of driving capacitive loads, making it suitable for interfacing between different logic levels and driving large loads. The device operates within a wide voltage range, typically from 4.5V to 5.5V, ensuring compatibility with various TTL and CMOS logic families.
The CD74HCT243M includes enable control inputs, allowing users to control the outputs and manage power consumption effectively. It exhibits low power dissipation and fast switching times, which enhances system performance. This component is often used in applications such as data communication, signal buffering, and as a level shifter in interfacing different logic families.
The M suffix indicates that it is available in a surface mount package, ideal for compact circuit designs. Overall, the CD74HCT243M is a versatile and reliable component in modern electronic systems.

Features

The CD74HCT243M is a high-speed CMOS octal buffer/driver with 3-state outputs. Key features include:
1. Octal Buffer/Driver: It provides eight inputs and corresponding outputs, suitable for driving high-capacitance loads.
2. 3-State Outputs: The outputs can be enabled or disabled, allowing for more versatile circuit designs and minimizing bus contention.
3. Voltage Range: Compatible with a wide supply voltage range of 4.5V to 5.5V.
4. High-speed Operation: Delivers fast switching times, ideal for high-frequency applications.
5. Low Power Consumption: Operates with low static and dynamic power consumption, enhancing efficiency.
6. TTL Compatibility: Compatible with TTL input levels, making it suitable for interfacing with other logic families.
7. Wide Temperature Range: Rated for operation from -40°C to +85°C, ensuring reliability in various conditions.
8. Compact Package: Available in a surface-mount package (SOIC), saving PCB space.
These features make the CD74HCT243M suitable for applications in digital circuits, data buffering, and signal conditioning.

Package

The CD74HCT243M is typically available in a 20-pin Dual In-Line Package (DIP) format.

Pinout

The CD74HCT243M is an octal buffer/driver with tri-state outputs, featuring a total of 20 pins. Its main functions include buffering data and driving the output lines in either a high-impedance state or a logic high/low state based on the control inputs.
Pin Configuration:
1. Pins 1-8 (A1-A8): Data inputs (A1 to A8).
2. Pins 9-16 (Y1-Y8): Data outputs (Y1 to Y8).
3. Pin 19 (GND): Ground connection.
4. Pin 20 (Vcc): Power supply connection (typically +5V).
5. Pin 17 (OE): Output enable control (active low).
6. Pin 18 (DIR): Direction control for data flow (applies in some configurations).
The device is designed for use in digital circuits to improve signal integrity and drive capabilities, making it suitable for applications like bus-oriented systems.

Manufacturer

The CD74HCT243M is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including digital signal processing (DSP) and analog technologies. Founded in 1930, the company is known for its innovations in electronics and is a major supplier for industries such as telecommunications, automotive, and consumer electronics. TI is well-regarded for its commitment to research and development, providing products that drive advancements in technology and support a wide range of applications.

Application

The CD74HCT243M is a hex inverting buffer/driver with three-state outputs, commonly used in digital circuits for signal buffering, level shifting, and driving capacitive loads. Its application areas include data communication lines, bus systems, and interfacing between different logic families. It is also utilized in memory management, microcontroller interfacing, and various digital logic designs to enhance signal integrity and improve performance in high-speed applications.

Equivalent

Equivalent products to the CD74HCT243M chip include the 74HCT243, 74HC243, and 74LS243. These chips are all octal buffers/line drivers with similar functionality but may differ in power supply voltage and speed. Always check the specific datasheets for detailed specifications and compatibility.

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