# LM258APT

**STMicroelectronics** · Operational Amplifier · TSSOP-8

LM258APT from STMicroelectronics, in a TSSOP-8. 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, swinging from 0 V to (VCC+ - 1.5 V) with output short-circuit current of approximately 40 mA. |
| 2 | In1- | input | Inverting input of amplifier 1, with common-mode range from VCC- to (VCC+ - 1.5 V) at 25 °C and input voltage of -0.3 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 and input voltage of -0.3 to 32 V. |
| 4 | Vcc- | power_in | Negative supply voltage, ground in 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 and input voltage of -0.3 to 32 V. |
| 6 | In2- | input | Inverting input of amplifier 2, with common-mode range from VCC- to (VCC+ - 1.5 V) at 25 °C and input voltage of -0.3 to 32 V. |
| 7 | Out2 | output | Output of amplifier 2, swinging from 0 V to (VCC+ - 1.5 V) with output short-circuit current of approximately 40 mA. |
| 8 | Vcc+ | power_in | Positive supply voltage, operating range 3 V to 30 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM258APT`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm258apt-etched.step` / `lm258apt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm258apt.step` / `lm258apt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590152808315330560) (25 pp, sha256 `40a2550bed90848d`, retrieved 2026-10-05, 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](docs/lm258apt-datasheet.pdf)