component
SN74AHCT126DR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN74AHCT126DR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-14
SN74AHCT126DR from Texas Instruments, in a SOIC-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 1 input; high enables buffer 1 output, low forces high-impedance state. |
| 2 | 1A | input | Buffer 1 data input; accepts TTL-compatible voltages from 0 to 5.5 V. |
| 3 | 1Y | tri_state | Buffer 1 tri-state output; maximum drive ±8 mA, voltage range 0 to VCC. |
| 4 | 2OE | input | Output Enable 2 input; high enables buffer 2 output, low forces high-impedance state. |
| 5 | 2A | input | Buffer 2 data input; accepts TTL-compatible voltages from 0 to 5.5 V. |
| 6 | 2Y | tri_state | Buffer 2 tri-state output; maximum drive ±8 mA, voltage range 0 to VCC. |
| 7 | GND | power_in | Ground reference pin. |
| 8 | 3Y | tri_state | Buffer 3 tri-state output; maximum drive ±8 mA, voltage range 0 to VCC. |
| 9 | 3A | input | Buffer 3 data input; accepts TTL-compatible voltages from 0 to 5.5 V. |
| 10 | 3OE | input | Output Enable 3 input; high enables buffer 3 output, low forces high-impedance state. |
| 11 | 4Y | tri_state | Buffer 4 tri-state output; maximum drive ±8 mA, voltage range 0 to VCC. |
| 12 | 4A | input | Buffer 4 data input; accepts TTL-compatible voltages from 0 to 5.5 V. |
| 13 | 4OE | input | Output Enable 4 input; high enables buffer 4 output, low forces high-impedance state. |
| 14 | VCC | power_in | Power supply voltage pin; operating range 4.5 to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
SN74AHCT126DR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
sn74ahct126dr-etched.step/sn74ahct126dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahct126dr.step/sn74ahct126dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
d4c548dd79dbea6e, retrieved 2026-09-24, tier: manufacturer) - 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).