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74HC244 Driver IC: Pinout, Alterntaive and Price

Q: 1.What is the difference between 74HC244 and 74ACT244?

74HC244 is a device that implements CMOS logic level voltage specification, 74ACT244 is a device that implements TTL logic level voltage specification. Their input and output high and low levels are defined differently, and the operating voltage range is also different. 74HC244 is 2V~6V, The 74ACT244 is 4.5V~5.5V, and the output drive capability of 74ACT244 is also stronger.

Q: 2.What is the 74HC244 chip used for？

244 itself does not have the download function. Three-state buffer/line driver. It is just a buffer driver, used to enhance your signal load capacity.

Q: 3.Can 74HC244 work in a 3.3V system?

74HC244 is a CMOS device, the power supply operating voltage range is 2V-6V. It is completely possible to use it in a 3.3V system.

Sophie

Published: 30 August 2021 | Last Updated: 30 August 2021

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datasheet pdf and product details from stock available at Utmel

Purchase Guide

The 74HC244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. This article mainly introduce pinout, alternative, price and other detailed information about Nexperia 74HC244.

This video will show you how to test 74HC244.

74HC244 Octal Buffer Teste na protoboard

Catalog

74HC244 Description

The 74HC244 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The IC has a wide range of input voltage and has a very less current consumption.

The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

74HC244 Pinout

74hc244 pinout.jpg

74HC244 CAD Model

Symbol

Footprint

3D Model

74HC244 3D MODEL.jpg

74HC244 Features

●Pb−Free

●Low Input Current: 1.0A

●Supply Voltage: 2-6V DC

●Current Consumption: 80uA(Max)

●±6-mA Output Drive at 5 V

●Inputs Level: CMOS level

●Octal bus interface

●High Noise Immunity Characteristic of CMOS Devices

●Output Drive Capability: 15 LSTTL Loads

●Operating Temperatures: -40 °C to +85 °C and -40 °C to +125 °C

●Non-inverting 3-state outputs

Specifications

technical specifications, attributes, parameters and parts with similar specifications to .

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74HC244 Alternatives

74HC244 Functional Diagram

Functional Diagram.png

74HC244 Applications

●Used in Motor Drivers

●Used in LED Displays

●Used in Servers and Telecom infrastructure

74HC244 Package

74HC244 Manufacturer

Nexperia is a global semiconductor manufacturer headquartered in Nijmegen, the Netherlands. It has front-end factories in Hamburg, Germany and Greater Manchester, England. It is the former Standard Products business unit of NXP Semiconductors (previously as Philips Semiconductors). The company's product range includes bipolar transistors, diodes, ESD protection, TVS diodes, MOSFETs, and logic devices.

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Frequently Asked Questions

1.What is the difference between 74HC244 and 74ACT244?

74HC244 is a device that implements CMOS logic level voltage specification, 74ACT244 is a device that implements TTL logic level voltage specification. Their input and output high and low levels are defined differently, and the operating voltage range is also different. 74HC244 is 2V~6V, The 74ACT244 is 4.5V~5.5V, and the output drive capability of 74ACT244 is also stronger.

2.What is the 74HC244 chip used for？

244 itself does not have the download function. Three-state buffer/line driver. It is just a buffer driver, used to enhance your signal load capacity.

3.Can 74HC244 work in a 3.3V system?

74HC244 is a CMOS device, the power supply operating voltage range is 2V-6V. It is completely possible to use it in a 3.3V system.

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