component

SN74HC244QPWREP

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.

componentlogicsn74hc244qpwrepfactory-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 18d ago
viewers sn74hc244qpwrep: viewers · Ray 18d ago
package.json sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
page.json sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
README.md Publish 0.1.0 · Ray 18d ago
sn74hc244qpwrep-etched.glb sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
sn74hc244qpwrep-etched.step sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
sn74hc244qpwrep-hero.glb sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
sn74hc244qpwrep-hero.overlay.json sn74hc244qpwrep: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC… · Ray 9d ago
sn74hc244qpwrep.glb Publish 0.1.0 · Ray 18d ago
sn74hc244qpwrep.kicad_mod Publish 0.1.0 · Ray 18d ago
sn74hc244qpwrep.kicad_sym Publish 0.1.0 · Ray 18d ago
sn74hc244qpwrep.lbr Publish 0.1.0 · Ray 18d ago
sn74hc244qpwrep.step Publish 0.1.0 · Ray 18d ago

SN74HC244QPWREP

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

SN74HC244QPWREP 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: when low, data passes from the 1A inputs to the 1Y outputs, and when high, the 1Y outputs go to high impedance.
2 1A1 input Noninverted data input 1 of the first buffer/driver, with input voltage limited to 0 V to VCC.
3 2Y4 tri_state 3-state output 4 of the second buffer/driver, high impedance when 2OE is high, and rated to drive up to 15 LSTTL loads.
4 1A2 input Noninverted data input 2 of the first buffer/driver, with input voltage limited to 0 V to VCC.
5 2Y3 tri_state 3-state output 3 of the second buffer/driver, high impedance when 2OE is high, and rated to drive up to 15 LSTTL loads.
6 1A3 input Noninverted data input 3 of the first buffer/driver, with input voltage limited to 0 V to VCC.
7 2Y2 tri_state 3-state output 2 of the second buffer/driver, high impedance when 2OE is high, and rated to drive up to 15 LSTTL loads.
8 1A4 input Noninverted data input 4 of the first buffer/driver, with input voltage limited to 0 V to VCC.
9 2Y1 tri_state 3-state output 1 of the second buffer/driver, high impedance when 2OE is high, and rated to drive up to 15 LSTTL loads.
10 GND power_in Ground reference for the device.
11 2A1 input Noninverted data input 1 of the second buffer/driver, with input voltage limited to 0 V to VCC.
12 1Y4 tri_state 3-state output 4 of the first buffer/driver, high impedance when 1OE is high, and rated to drive up to 15 LSTTL loads.
13 2A2 input Noninverted data input 2 of the second buffer/driver, with input voltage limited to 0 V to VCC.
14 1Y3 tri_state 3-state output 3 of the first buffer/driver, high impedance when 1OE is high, and rated to drive up to 15 LSTTL loads.
15 2A3 input Noninverted data input 3 of the second buffer/driver, with input voltage limited to 0 V to VCC.
16 1Y2 tri_state 3-state output 2 of the first buffer/driver, high impedance when 1OE is high, and rated to drive up to 15 LSTTL loads.
17 2A4 input Noninverted data input 4 of the second buffer/driver, with input voltage limited to 0 V to VCC.
18 1Y1 tri_state 3-state output 1 of the first buffer/driver, high impedance when 1OE is high, and rated to drive up to 15 LSTTL loads.
19 2OE input Active-low output enable for the second 4-bit buffer/driver: when low, data passes from the 2A inputs to the 2Y outputs, and when high, the 2Y outputs go to high impedance.
20 VCC power_in Supply voltage, recommended range 2 V to 6 V with an absolute maximum of 7 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74HC244QPWREP
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: sn74hc244qpwrep-etched.step / sn74hc244qpwrep-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc244qpwrep.step / sn74hc244qpwrep.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (16 pp, sha256 e209190dd4fa799c, retrieved 2026-10-10, tier: lcsc)
  • 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