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Contents

README

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LM393M

Texas Instruments · Comparators · SOIC-8

LM393M from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTA output Comparator A output; open-collector NPN output that can sink 6-16 mA with saturation voltage of 250-400 mV at 4 mA sink current.
2 -INA input Comparator A inverting input; input voltage range -0.3V to 36V with common-mode range 0V to V+-1.5V at 25°C.
3 +INA input Comparator A noninverting input; input voltage range -0.3V to 36V with common-mode range 0V to V+-1.5V at 25°C.
4 GND power_in Ground reference; serves as negative reference for single-supply operation or V- terminal for dual-supply configuration.
5 +INB input Comparator B noninverting input; input voltage range -0.3V to 36V with common-mode range 0V to V+-1.5V at 25°C.
6 -INB input Comparator B inverting input; input voltage range -0.3V to 36V with common-mode range 0V to V+-1.5V at 25°C.
7 OUTB output Comparator B output; open-collector NPN output that can sink 6-16 mA with saturation voltage of 250-400 mV at 4 mA sink current.
8 V+ power_in Positive power supply; supply voltage range 2.0V to 36V for single supply or ±1.0V to ±18V for dual supply configuration.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Amplifiers/Comparators
Pins 8

CAD (KiCad official)

  • Symbol: LM393M
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm393m-etched.step / lm393m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm393m.step / lm393m.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 6bb0c77bb4550bd7, retrieved 2026-09-23, 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, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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