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SN74LS09DR

Public Made by Adom

by adom

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

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SN74LS09DR

Texas Instruments · Logic Gates · SOIC-14

SN74LS09DR 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 Gate 1 input A; absolute maximum input voltage for 'LS09 is 7 V.
2 1B input Gate 1 input B; absolute maximum input voltage for 'LS09 is 7 V.
3 1Y output Gate 1 open-collector output (Y = A·B) that requires an external pull-up resistor; off-state output voltage is 7 V max.
4 2A input Gate 2 input A; absolute maximum input voltage for 'LS09 is 7 V.
5 2B input Gate 2 input B; absolute maximum input voltage for 'LS09 is 7 V.
6 2Y output Gate 2 open-collector output (Y = A·B) that requires an external pull-up resistor; off-state output voltage is 7 V max.
7 GND power_in Ground; the datasheet gives all voltages with respect to this network ground terminal.
8 3Y output Gate 3 open-collector output (Y = A·B) that requires an external pull-up resistor; off-state output voltage is 7 V max.
9 3A input Gate 3 input A; absolute maximum input voltage for 'LS09 is 7 V.
10 3B input Gate 3 input B; absolute maximum input voltage for 'LS09 is 7 V.
11 4Y output Gate 4 open-collector output (Y = A·B) that requires an external pull-up resistor; off-state output voltage is 7 V max.
12 4A input Gate 4 input A; absolute maximum input voltage for 'LS09 is 7 V.
13 4B input Gate 4 input B; absolute maximum input voltage for 'LS09 is 7 V.
14 VCC power_in Positive supply voltage; absolute maximum 7 V with respect to network ground.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LS09DR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ls09dr-etched.step / sn74ls09dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls09dr.step / sn74ls09dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (23 pp, sha256 679be881beb0f1b2, retrieved 2026-10-03, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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