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SN74AHCT126DBR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SSOP-14-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74AHCT126DBR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahct126dbr.step/sn74ahct126dbr.glbare 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).