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SN74AHCT126QPWRQ1

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Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs sn74ahct126qpwrq1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
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package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Initial commit: component/sn74ahct126qpwrq1 · Ray 9d ago
sn74ahct126qpwrq1-etched.fit.json sn74ahct126qpwrq1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahct126qpwrq1-etched.glb sn74ahct126qpwrq1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahct126qpwrq1-etched.step sn74ahct126qpwrq1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
sn74ahct126qpwrq1.glb Publish 0.1.0 · Ray 9d ago
sn74ahct126qpwrq1.kicad_mod Publish 0.1.0 · Ray 9d ago
sn74ahct126qpwrq1.kicad_sym Publish 0.1.0 · Ray 9d ago
sn74ahct126qpwrq1.lbr Publish 0.1.0 · Ray 9d ago
sn74ahct126qpwrq1.step Publish 0.1.0 · Ray 9d ago

SN74AHCT126QPWRQ1

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-14

SN74AHCT126QPWRQ1 from Texas Instruments, in a TSSOP-14. 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 Output enable input for buffer 1; high enables output to follow data input, low places output in high-impedance state.
2 1A input Data input for buffer 1; logic level transferred to 1Y output when 1OE is high.
3 1Y tri_state Tristate output for buffer 1; passes 1A input when 1OE is high, high-impedance when low.
4 2OE input Output enable input for buffer 2; high enables output to follow data input, low places output in high-impedance state.
5 2A input Data input for buffer 2; logic level transferred to 2Y output when 2OE is high.
6 2Y tri_state Tristate output for buffer 2; passes 2A input when 2OE is high, high-impedance when low.
7 GND power_in Ground, 0V reference.
8 3Y tri_state Tristate output for buffer 3; passes 3A input when 3OE is high, high-impedance when low.
9 3A input Data input for buffer 3; logic level transferred to 3Y output when 3OE is high.
10 3OE input Output enable input for buffer 3; high enables output to follow data input, low places output in high-impedance state.
11 4Y tri_state Tristate output for buffer 4; passes 4A input when 4OE is high, high-impedance when low.
12 4A input Data input for buffer 4; logic level transferred to 4Y output when 4OE is high.
13 4OE input Output enable input for buffer 4; high enables output to follow data input, low places output in high-impedance state.
14 VCC power_in Power supply voltage; recommended operating range 4.5V to 5.5V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-14
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74AHCT126QPWRQ1
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ahct126qpwrq1-etched.step / sn74ahct126qpwrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahct126qpwrq1.step / sn74ahct126qpwrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (30 pp, sha256 7161780ff9b93586, retrieved 2026-09-26, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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