component

SN74HC244QPWRG4Q1

Public Made by Adom

by adom

Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentlogicsn74hc244qpwrg4q1factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 14d ago
viewers sn74hc244qpwrg4q1: viewers · Ray 14d ago
package.json Publish 0.1.0 · Ray 14d ago
page.json Set visibility: public · Ray 14d ago
README.md Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1-etched.glb sn74hc244qpwrg4q1: factory component page (tier=lcsc) · Ray 14d ago
sn74hc244qpwrg4q1-etched.step sn74hc244qpwrg4q1: factory component page (tier=lcsc) · Ray 14d ago
sn74hc244qpwrg4q1-hero.glb sn74hc244qpwrg4q1: hero GLB from the etched model (keeps the MPN mark) · Ray 14d ago
sn74hc244qpwrg4q1-hero.overlay.json Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1.glb Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1.kicad_mod Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1.kicad_sym Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1.lbr Publish 0.1.0 · Ray 14d ago
sn74hc244qpwrg4q1.step Publish 0.1.0 · Ray 14d ago

SN74HC244QPWRG4Q1

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

SN74HC244QPWRG4Q1 from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1OE input Active-low output enable for the first 4-bit buffer/driver (1Y1-1Y4); when low the outputs pass the A data, and when high the outputs go to the high-impedance state.
2 1A1 input Data input to the first buffer/driver; passes noninverted to output 1Y1 while 1OE is low.
3 2Y4 tri_state Three-state noninverting buffer output of channel 4 in the second 4-bit group; high impedance while 2OE is high.
4 1A2 input Data input to the first buffer/driver; passes noninverted to output 1Y2 while 1OE is low.
5 2Y3 tri_state Three-state noninverting buffer output of channel 3 in the second 4-bit group; high impedance while 2OE is high.
6 1A3 input Data input to the first buffer/driver; passes noninverted to output 1Y3 while 1OE is low.
7 2Y2 tri_state Three-state noninverting buffer output of channel 2 in the second 4-bit group; high impedance while 2OE is high.
8 1A4 input Data input to the first buffer/driver; passes noninverted to output 1Y4 while 1OE is low.
9 2Y1 tri_state Three-state noninverting buffer output of channel 1 in the second 4-bit group; high impedance while 2OE is high.
10 GND power_in Ground reference pin for the device.
11 2A1 input Data input to the second buffer/driver; passes noninverted to output 2Y1 while 2OE is low.
12 1Y4 tri_state Three-state noninverting buffer output of channel 4 in the first 4-bit group; high impedance while 1OE is high.
13 2A2 input Data input to the second buffer/driver; passes noninverted to output 2Y2 while 2OE is low.
14 1Y3 tri_state Three-state noninverting buffer output of channel 3 in the first 4-bit group; high impedance while 1OE is high.
15 2A3 input Data input to the second buffer/driver; passes noninverted to output 2Y3 while 2OE is low.
16 1Y2 tri_state Three-state noninverting buffer output of channel 2 in the first 4-bit group; high impedance while 1OE is high.
17 2A4 input Data input to the second buffer/driver; passes noninverted to output 2Y4 while 2OE is low.
18 1Y1 tri_state Three-state noninverting buffer output of channel 1 in the first 4-bit group; high impedance while 1OE is high.
19 2OE input Active-low output enable for the second 4-bit buffer/driver (2Y1-2Y4); when high the outputs go to the high-impedance state.
20 VCC power_in Supply voltage pin; recommended operating range is 2 V to 6 V, with a 0.1-µF bypass capacitor placed as close to the pin as possible.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-20
Category Logic
Pins 20

CAD (KiCad official)

  • Symbol: SN74HC244QPWRG4Q1
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74hc244qpwrg4q1-etched.step / sn74hc244qpwrg4q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc244qpwrg4q1.step / sn74hc244qpwrg4q1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (20 pp, sha256 8d5ec541e9e948ca, retrieved 2026-10-08, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF