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Contents

README

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LM258QT

STMicroelectronics · Operational Amplifier · DFN-8-EP(2x2)

LM258QT from STMicroelectronics, in a DFN-8-EP(2x2). 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 Out1 output Output of amplifier 1, which can swing from 0 V to (VCC+ - 1.5 V).
2 In1- input Inverting input of amplifier 1, with input voltage range -0.3 V to 32 V.
3 In1+ input Non-inverting input of amplifier 1, with common-mode range from VCC- to (VCC+ - 1.5 V) at 25 °C.
4 Vcc- power_in Negative supply or ground for single-supply operation.
5 In2+ input Non-inverting input of amplifier 2, with common-mode range from VCC- to (VCC+ - 1.5 V) at 25 °C.
6 In2- input Inverting input of amplifier 2, with input voltage range -0.3 V to 32 V.
7 Out2 output Output of amplifier 2, which can swing from 0 V to (VCC+ - 1.5 V).
8 Vcc+ power_in Positive supply, operating range 3 V to 30 V.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DFN-8-EP(2x2)
Category Amplifiers/Comparators
Pins 9

CAD (KiCad official)

  • Symbol: LM258QT
  • Footprint: Package_DFN_QFN:DFN-8-1EP_2x2mm_P0.5mm_EP0.6x1.2mm
  • 3D model: DFN-8-EP(2x2) (KiCad packages3D, STEP)
  • 3D model files: lm258qt-etched.step / lm258qt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm258qt.step / lm258qt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (25 pp, sha256 40a2550bed90848d, retrieved 2026-10-03, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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