component
SN74HCS126QDRQ1
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74HCS126QDRQ1
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · SOIC-14
SN74HCS126QDRQ1 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 | Channel 1 output enable input; active high enables Y output, low places Y in high-impedance state. |
| 2 | 1A | input | Channel 1 signal input with Schmitt-trigger architecture; accepts logic levels 0 to VCC. |
| 3 | 1Y | output | Channel 1 three-state buffered output performing Y=A logic when OE is high; high-impedance when OE is low. |
| 4 | 2OE | input | Channel 2 output enable input; active high enables Y output, low places Y in high-impedance state. |
| 5 | 2A | input | Channel 2 signal input with Schmitt-trigger architecture; accepts logic levels 0 to VCC. |
| 6 | 2Y | output | Channel 2 three-state buffered output performing Y=A logic when OE is high; high-impedance when OE is low. |
| 7 | GND | power_in | Ground return; reference voltage for all logic signals. |
| 8 | 3Y | output | Channel 3 three-state buffered output performing Y=A logic when OE is high; high-impedance when OE is low. |
| 9 | 3A | input | Channel 3 signal input with Schmitt-trigger architecture; accepts logic levels 0 to VCC. |
| 10 | 3OE | input | Channel 3 output enable input; active high enables Y output, low places Y in high-impedance state. |
| 11 | 4Y | output | Channel 4 three-state buffered output performing Y=A logic when OE is high; high-impedance when OE is low. |
| 12 | 4A | input | Channel 4 signal input with Schmitt-trigger architecture; accepts logic levels 0 to VCC. |
| 13 | 4OE | input | Channel 4 output enable input; active high enables Y output, low places Y in high-impedance state. |
| 14 | VCC | power_in | Positive power supply; operates 2 V to 6 V per recommended operating conditions page 4. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
SN74HCS126QDRQ1 - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
sn74hcs126qdrq1-etched.step/sn74hcs126qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hcs126qdrq1.step/sn74hcs126qdrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
4405aa1df04c7b40, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).