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SN74HCT244DWR

Name: SN74HCT244DWR
Rating: 4.7 (12 reviews)

IC BUF NON-INVERT 5.5V 20SOIC

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包 SOIC (DW)-20
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規格

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
Series	74HCT
ProductStatus	Active
LogicType	Buffer, Non-Inverting
NumberofElements	2
NumberofBitsperElement	4
OutputType	3-State
Current-OutputHighLow	6mA, 6mA
Voltage-Supply	4.5V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	20-SOIC (0.295, 7.50mm Width)

概述

Description

The SN74HCT244DWR is a high-speed hex buffer/driver designed for use in digital circuits. It belongs to the Texas Instruments 74HCT series, which is compatible with TTL logic levels but operates at lower power and higher speed. The device features six independent buffers and drivers, each with a high-impedance state, allowing for increased output drive capability and improved signal integrity.
Operating with a supply voltage of 4.5V to 5.5V, the SN74HCT244DWR supports a wide range of input and output logic levels, making it suitable for interfacing between different logic families. It has a maximum propagation delay of approximately 8 ns at 5V, making it suitable for high-speed applications.
Key features include low power consumption, wide input voltage range, and the ability to drive TTL-compatible loads. Common applications include data buffering, signal amplification, and level shifting in various digital circuits. The device is available in a 20-pin TSSOP package for space-efficient designs.

Features

The SN74HCT244DWR is an octal buffer/driver with 3-state outputs, designed for high-speed digital circuits. Key features include:
1. Logic Family: HCT (High-Speed CMOS), compatible with TTL levels.
2. Output Configuration: Eight independent buffers with 3-state outputs.
3. Voltage Supply Range: Operates at a voltage of 4.5V to 5.5V.
4. Input Voltage Levels: Accepts standard TTL input levels.
5. Propagation Delay: Fast switching speeds with a typical propagation delay of 4.5 ns at 5V.
6. Data Rates: Capable of handling high-speed data rates (up to 100 MHz).
7. Power Consumption: Low power consumption typical of CMOS technology.
8. Packaging: Available in a 20-pin SOIC (DWR) package, suitable for space-constrained applications.
This device is ideal for applications requiring signal buffering and driving capabilities in digital circuits while maintaining compatibility with TTL logic levels.

Package

The SN74HCT244DWR is packaged in a TSSOP (Thin Shrink Small Outline Package) with a 20-pin configuration. This surface-mount package is designed for high-density applications, offering a compact footprint suitable for various electronic circuits.

Pinout

The SN74HCT244DWR is an octal buffer/driver with 3-state outputs, featuring a total of 20 pins. It has the following key functions:
1. Data Inputs (A1-A8): 8 input pins that accept data signals.
2. Output Enable (OE): A control pin that enables or disables the outputs. When OE is low, the outputs are active; when high, the outputs are in a high-impedance state.
3. Outputs (Y1-Y8): Corresponding to the inputs, these are the buffered output pins.
4. VCC: The power supply pin.
5. GND: The ground pin.
The device is designed for high-speed operation and is compatible with TTL logic levels. It is commonly used in applications requiring signal buffering and driving capabilities.

Manufacturer

The SN74HCT244DWR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including digital and analog devices. The company is well-known for its innovations in microcontrollers, processors, and other electronic components used in a wide range of applications, from consumer electronics to industrial systems. Founded in 1930, TI has established itself as a leader in the semiconductor industry, providing solutions for diverse markets such as automotive, communication, and computing.

Application

The SN74HCT244DWR is a high-speed hex buffer/driver with 3-state outputs, commonly used in digital circuits for signal buffering, level shifting, and driving loads. Its applications include data routing in communication systems, interfacing between different logic families, and enhancing signal integrity in microcontroller and FPGA designs. It is suitable for use in automotive, industrial, and consumer electronic devices where reliable data transmission is crucial.

Equivalent

The SN74HCT244DWR is an octal buffer/driver with 3-state outputs. Equivalent products include:
1. SN74LS244
2. SN74HC244
3. 74HC244
4. 74HCT244
These alternatives may vary in voltage levels, speed, and power consumption, so check specifications for compatibility based on your application.