component

LM239PT

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by Ray

STMicroelectronics Comparators, TSSOP-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmplm239pt
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Datasheet

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Contents

README

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LM239PT

STMicroelectronics · Comparators · TSSOP-14

LM239PT from STMicroelectronics, in a TSSOP-14. 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 OUT2 output Open-collector output of comparator 2. Pulls low when IN2+ < IN2-; requires external pull-up resistor to the desired logic-high rail (typ. 1 k-100 kΩ).
2 OUT1 output Open-collector output of comparator 1. Pulls low when IN1+ < IN1-; requires external pull-up resistor.
3 VCC+ power_in Positive supply. Single-supply 3 V to 36 V, or +side of ±1.5 V to ±18 V dual supply.
4 IN1- input Inverting input of comparator 1. Common-mode range includes ground (0 V to VCC-1.5 V).
5 IN1+ input Non-inverting input of comparator 1. Common-mode range includes ground.
6 IN2- input Inverting input of comparator 2. Common-mode range includes ground.
7 IN2+ input Non-inverting input of comparator 2. Common-mode range includes ground.
8 IN3+ input Non-inverting input of comparator 3. Common-mode range includes ground.
9 IN3- input Inverting input of comparator 3. Common-mode range includes ground.
10 IN4+ input Non-inverting input of comparator 4. Common-mode range includes ground.
11 IN4- input Inverting input of comparator 4. Common-mode range includes ground.
12 GND power_in Ground / negative supply. Tie to 0 V in single-supply operation, or to -1.5 V to -18 V in split-supply operation.
13 OUT4 output Open-collector output of comparator 4. Requires external pull-up resistor.
14 OUT3 output Open-collector output of comparator 3. Requires external pull-up resistor.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TSSOP-14
Category Op-amp/Cmp
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • LM239PT
  • LM239PTD
  • LM239PTDT
  • LM239PTN

CAD (KiCad official)

  • Symbol: LM239PT
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (19 pp, sha256 5adc47258717f516, 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