Part Image

74HCT244D - Nexperia

Description: Octal buffer/line driver

Download 74HCT244D Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
PCB Footprints
74HCT244D - Nexperia PCB footprint - Other - Other - SOIC127P1032X265-20N
click to zoom
3D Models
74HCT244D - Nexperia  - 3D model - Other - SOIC127P1032X265-20N
click to zoom

74HCT244D Details

  • Manufacturer Part Number:

    74HCT244D

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-20

  • Country Of Origin:

    Mainland China, Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1991-06-27

  • Manufacturer:

    Nexperia

  • YTEOL:

    10

  • Control Type:

    ENABLE LOW

  • Count Direction:

    UNIDIRECTIONAL

  • Family:

    HCT

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    BUS DRIVER

  • Max I(ol):

    0.0078 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    2

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    70 mA

  • Propagation Delay (tpd):

    33 ns

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    7.5 mm

74HCT244D Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the 74HCT244D is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
  • The output enable (OE) pin is active-low, meaning that the outputs are enabled when OE is low ( Logic 0) and disabled when OE is high (Logic 1). You should connect OE to a logic signal that controls when the outputs are active or high-impedance.
  • A simple POR circuit can be implemented using a resistor, capacitor, and diode. The capacitor should be connected between VCC and GND, and the resistor and diode should be connected in series between VCC and the reset pin. This ensures that the device is properly reset during power-on.
  • Proper termination is critical to prevent signal reflections and ensure signal integrity. You should use a series terminator (e.g., 22-33 ohms) at the end of the transmission line, and consider using a parallel terminator (e.g., 47-100 ohms) at the receiver end if necessary.
  • The 74HCT244D can sink or source up to 6 mA per output pin, but the total current should not exceed 100 mA for the entire device.

Trust Checks

This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

74HCT244D Overview

Use the download button to access the 74HCT244D schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like 74HCT, or try a keyword search, such as Bus Driver/Transceivers

About Nexperia

Nexperia is a leading global player in the semiconductor industry. Specializing in essential electronic components, Nexperia offers a diverse range of products including discrete components, MOSFETs, logic ICs, and analog ICs. These components are integral to a multitude of applications across automotive, industrial, consumer electronics, and computing sectors, where reliability, performance, and efficiency are paramount.

Parts related to 74HCT244D

Showing 0 results

74HCT244D Alternates

Showing results

Image Part Number Model
Part Image 74HCT244D,653 Nexperia

Bus Driver, HCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20

Part Image MC74HCT244ADWG onsemi

Bus Driver, HCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20

Part Image MC74HCT244ADWR2G Rochester Electronics LLC

HCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, ROHS COMPLIANT, SOIC-20

Part Image MM74HCT244WM Rochester Electronics LLC

HCT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20, 0.300 INCH, MS-013, SOIC-20

Part Image M74HCT244M1R STMicroelectronics

Bus Driver, HCT Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20

For a full list of alternate parts for 74HCT244D, check out Findchips.com