component

LM393DR

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by Ray

Texas Instruments Comparators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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LM393DR

Texas Instruments · Comparators · SOIC-8

LM393DR 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 1OUT output Open-collector output of comparator 1. Requires an external pull-up resistor to a positive supply. Can sink up to ~16 mA typical.
2 2OUT output Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply. Can sink up to ~16 mA typical.
3 VCC power_in Positive supply voltage. Single-supply operation from 2 V to 36 V, or split supplies of ±1 V to ±18 V.
4 2IN- input Inverting input of comparator 2. Common-mode input voltage range includes ground (V- rail).
5 2IN+ input Non-inverting input of comparator 2. Common-mode input voltage range includes ground (V- rail).
6 1IN- input Inverting input of comparator 1. Common-mode input voltage range includes ground (V- rail).
7 1IN+ input Non-inverting input of comparator 1. Common-mode input voltage range includes ground (V- rail).
8 GND power_in Ground / negative supply reference. Connected to system ground in single-supply operation, or to V- in split-supply operation.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LM393DR
  • LM393DRD
  • LM393DRDGKR
  • LM393DRPWR
  • LM393DRP

CAD (KiCad official)

  • Symbol: LM393DR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (56 pp, sha256 dd9f3d029261a161, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF