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Contents

README

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SN74LS05NSR

Texas Instruments · Inverters · SOIC-14-208mil

SN74LS05NSR from Texas Instruments, in a SOIC-14-208mil. 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 of inverter 1; a logic low input gives a high output (Y = A̅ per the function table, H-to-L and L-to-H).
2 1Y output Open-collector output of inverter 1; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
3 2A input Input of inverter 2; input voltage is rated at 7 V maximum for the LS family.
4 2Y output Open-collector output of inverter 2; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
5 3A input Input of inverter 3; input voltage is rated at 7 V maximum for the LS family.
6 3Y output Open-collector output of inverter 3; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
7 GND power_in Ground reference; voltages are specified with respect to the network ground terminal.
8 4Y output Open-collector output of inverter 4; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
9 4A input Input of inverter 4; input voltage is rated at 7 V maximum for the LS family.
10 5Y output Open-collector output of inverter 5; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
11 5A input Input of inverter 5; input voltage is rated at 7 V maximum for the LS family.
12 6Y output Open-collector output of inverter 6; requires an external pullup resistor, and the off-state output voltage is rated at 7 V maximum.
13 6A input Input of inverter 6; input voltage is rated at 7 V maximum for the LS family.
14 VCC power_in Supply voltage; recommended range is 4.75 V to 5.25 V for SN74LS05 and the absolute maximum is 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14-208mil
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74LS05NSR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14-208mil (KiCad packages3D, STEP)
  • 3D model files: sn74ls05nsr-etched.step / sn74ls05nsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls05nsr.step / sn74ls05nsr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (28 pp, sha256 06bfc733a844b0c4, retrieved 2026-10-08, 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