component
SN74HCS266QDRQ1
Public Made by Adomby adom
Texas Instruments Gates, 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
markdownSN74HCS266QDRQ1
Texas Instruments · Gates · SOIC-14
SN74HCS266QDRQ1 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 | 1A | input | Channel 1 input A of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 2 | 1B | input | Channel 1 input B of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 3 | 1Y | output | Channel 1 open-drain output Y (Y = A XNOR B), which can only drive low and needs an external pull-up resistor for a high level. |
| 4 | 2Y | output | Channel 2 open-drain output Y (Y = A XNOR B), which can only drive low and needs an external pull-up resistor for a high level. |
| 5 | 2A | input | Channel 2 input A of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 6 | 2B | input | Channel 2 input B of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 7 | GND | power_in | Ground reference pin for the device. |
| 8 | 3A | input | Channel 3 input A of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 9 | 3B | input | Channel 3 input B of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 10 | 3Y | output | Channel 3 open-drain output Y (Y = A XNOR B), which can only drive low and needs an external pull-up resistor for a high level. |
| 11 | 4Y | output | Channel 4 open-drain output Y (Y = A XNOR B), which can only drive low and needs an external pull-up resistor for a high level. |
| 12 | 4A | input | Channel 4 input A of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 13 | 4B | input | Channel 4 input B of the XNOR gate, a Schmitt-trigger CMOS input that tolerates slow or noisy signals. |
| 14 | VCC | power_in | Positive power supply pin for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic ICs |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
SN74HCS266QDRQ1 - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
sn74hcs266qdrq1-etched.step/sn74hcs266qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hcs266qdrq1.step/sn74hcs266qdrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
7c304e8862e06d21, retrieved 2026-10-30, tier: manufacturer) - 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(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).