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SN74HCS05QDRQ1

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Texas Instruments Inverters, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74HCS05QDRQ1

Texas Instruments · Inverters · SOIC-14

SN74HCS05QDRQ1 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 Input A of channel 1 (Schmitt-trigger CMOS input, VCC supply range 2 V to 6 V).
2 1Y output Open-drain output Y of channel 1; it can only drive low and is high-impedance when high, so a pull-up resistor is needed to define the high level.
3 2A input Input A of channel 2 (Schmitt-trigger CMOS input).
4 2Y output Open-drain output Y of channel 2; it can only drive low and is high-impedance when high.
5 3A input Input A of channel 3 (Schmitt-trigger CMOS input).
6 3Y output Open-drain output Y of channel 3; it can only drive low and is high-impedance when high.
7 GND power_in Ground reference; the ground must sink the total output current plus the maximum ICC.
8 4Y output Open-drain output Y of channel 4; it can only drive low and is high-impedance when high.
9 4A input Input A of channel 4 (Schmitt-trigger CMOS input).
10 5Y output Open-drain output Y of channel 5; it can only drive low and is high-impedance when high.
11 5A input Input A of channel 5 (Schmitt-trigger CMOS input).
12 6Y output Open-drain output Y of channel 6; it can only drive low and is high-impedance when high.
13 6A input Input A of channel 6 (Schmitt-trigger CMOS input).
14 VCC power_in Positive supply; the recommended operating range is 2 V to 6 V (absolute maximum 7 V).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74HCS05QDRQ1
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74hcs05qdrq1-etched.step / sn74hcs05qdrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hcs05qdrq1.step / sn74hcs05qdrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (24 pp, sha256 acd8db5c68e97b7a, retrieved 2026-10-11, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF