SN74HCT244DW

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SN74HCT244DW

IC BUFF NON-INVERT 5.5V 20-SOIC

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Spezifikationen

Series 74HCT
Part Status Obsolete
Logic Type Buffer, Non-Inverting
Number of Elements 2
Number of Bits per Element 4
Output Type 3-State
Current - Output High, Low 6mA, 6mA
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 20-SOIC (0.295", 7.50mm Width)
Supplier Device Package 20-SOIC
Base Product Number 74HCT244

Übersicht

Description

The SN74HCT244DW is a high-speed hex buffer/driver with 3-state outputs, designed for use in digital circuits. It operates in the high-speed CMOS logic family, offering compatibility with both TTL and CMOS logic levels. The device contains six independent buffer/driver circuits that can accept up to 6 inputs and drive outputs to high or low states.
Key features include a wide supply voltage range (2V to 5.5V), low power consumption, and a high noise margin, making it suitable for various applications in digital electronics. The 3-state outputs allow for the connection of multiple devices to a single bus, providing flexibility in circuit design.
The SN74HCT244DW is packaged in a TSSOP (Thin Shrink Small Outline Package), making it ideal for space-constrained applications. Its primary use cases include signal buffering, isolation, and enhancing signal integrity in communication lines. Overall, it’s a versatile component for engineers designing reliable and efficient digital systems.

Features

The SN74HCT244DW is an octal buffer/driver designed for high-speed digital applications. Key features include:
1. High-Performance Logic Levels: Operates with HCT logic levels, compatible with TTL outputs.
2. Octal Buffer/Driver: Supports eight data inputs and outputs, allowing for easy interfacing with multiple devices.
3. High-Speed Operation: Typically operates at speeds up to 25 MHz, suitable for fast data processing.
4. Wide Supply Voltage Range: Operates from 4.5V to 5.5V, providing flexibility in power supply options.
5. Low Power Consumption: Designed for low static and dynamic power usage, making it energy-efficient.
6. Tri-State Outputs: Outputs can be set to high, low, or high-impedance state, enabling bus-oriented applications.
7. Pin and Function Compatibility: Compatible with the standard 74 series logic families, facilitating integration into existing systems.
8. Temperature Range: Functional over a wide temperature range, ensuring reliability in various environments.
These features make the SN74HCT244DW suitable for applications in computer and communication systems, including bus drivers and memory interface circuits.

Package

The SN74HCT244DW is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. This package type is designed for surface mounting and provides a compact footprint suitable for various electronic applications.

Pinout

The SN74HCT244DW is an octal buffer/driver with three-state outputs. It has a total of 20 pins. The pin functions are as follows:
- Pins 1-8 (A1-A8): These are the data input pins.
- Pins 19-12 (Y1-Y8): These are the three-state output pins corresponding to the inputs.
- Pin 9 (GND): Ground connection.
- Pin 10 (OE): Output Enable; active low pin that controls the activation of the outputs.
- Pin 11 (VCC): Supply voltage connection, typically +5V.
- Pin 15 (DIR): Direction control (if applicable, depending on the device configuration).
The SN74HCT244DW is designed to provide high-speed buffering and is compatible with TTL logic levels, making it suitable for interfacing applications.

Manufacturer

The SN74HCT244DW is manufactured by Texas Instruments (TI), a prominent global semiconductor company. Founded in 1930, TI designs and produces a wide range of electronic components, including analog and digital integrated circuits (ICs), microcontrollers, and processors. The company is known for its innovation in various technology sectors, such as automotive, industrial, communications, and consumer electronics. Texas Instruments plays a significant role in advancing electronic solutions through its focus on research and development, providing high-quality products to engineers and designers worldwide.

Application

The SN74HCT244DW is a high-speed CMOS octal buffer/driver with three-state outputs. It is commonly used in applications such as data bus buffering, signal amplification, and level shifting between different voltage systems. It is ideal for interfacing between microcontrollers and peripheral devices, memory interfacing, and in digital circuits requiring signal conditioning and isolation. Its ability to drive heavy loads makes it suitable for communication and industrial automation systems.

Equivalent

Equivalent products to the SN74HCT244DW include the 74HC244, 74HCT240, and 74LS244. Additionally, you can consider the MC74HC244 and the 74LVC244, as they provide similar functionality in terms of octal buffer/driver characteristics. Always check specific data sheets for compatibility regarding voltage levels and pin configurations.

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