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SN74AHCT126DBR

Public Made by Adom

by adom

Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-14-208mil. 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 sn74ahct126dbr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers sn74ahct126dbr: viewers · Ray 11d ago
package.json Publish 0.1.0 · Ray 11d ago
page.json Set visibility: public · Ray 11d ago
README.md Initial commit: component/sn74ahct126dbr · Ray 11d ago
sn74ahct126dbr-etched.fit.json sn74ahct126dbr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74ahct126dbr-etched.glb sn74ahct126dbr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74ahct126dbr-etched.step sn74ahct126dbr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
sn74ahct126dbr.glb Publish 0.1.0 · Ray 11d ago
sn74ahct126dbr.kicad_mod Publish 0.1.0 · Ray 11d ago
sn74ahct126dbr.kicad_sym Publish 0.1.0 · Ray 11d ago
sn74ahct126dbr.lbr Publish 0.1.0 · Ray 11d ago
sn74ahct126dbr.step Publish 0.1.0 · Ray 11d ago

SN74AHCT126DBR

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SSOP-14-208mil

SN74AHCT126DBR from Texas Instruments, in a SSOP-14-208mil. 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 1 input, active high; when high, output 1Y is enabled; when low, 1Y is high-impedance
2 1A input Data input for buffer 1; passed to 1Y when 1OE is high
3 1Y tri_state Tri-state output of buffer 1; buffers data from 1A when 1OE is high, high-impedance when 1OE is low
4 2OE input Output Enable 2 input, active high; when high, output 2Y is enabled; when low, 2Y is high-impedance
5 2A input Data input for buffer 2; passed to 2Y when 2OE is high
6 2Y tri_state Tri-state output of buffer 2; buffers data from 2A when 2OE is high, high-impedance when 2OE is low
7 GND power_in Ground pin
8 3Y tri_state Tri-state output of buffer 3; buffers data from 3A when 3OE is high, high-impedance when 3OE is low
9 3A input Data input for buffer 3; passed to 3Y when 3OE is high
10 3OE input Output Enable 3 input, active high; when high, output 3Y is enabled; when low, 3Y is high-impedance
11 4Y tri_state Tri-state output of buffer 4; buffers data from 4A when 4OE is high, high-impedance when 4OE is low
12 4A input Data input for buffer 4; passed to 4Y when 4OE is high
13 4OE input Output Enable 4 input, active high; when high, output 4Y is enabled; when low, 4Y is high-impedance
14 VCC power_in Supply voltage pin, 4.5 V to 5.5 V nominal

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-14-208mil
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74AHCT126DBR
  • Footprint: Package_SO:SSOP-14_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-14-208mil (KiCad packages3D, STEP)
  • 3D model files: sn74ahct126dbr-etched.step / sn74ahct126dbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahct126dbr.step / sn74ahct126dbr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (36 pp, sha256 530e7e17dc890bb7, retrieved 2026-09-24, 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-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