LM258M from HGSEMI, in a SOP-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	Output of op-amp channel 1. Short-circuit protected; typical short-circuit current ±24 mA at VCC=5V, VEE=-5V.
2	1IN-	input	Inverting input of op-amp channel 1. Input bias current typically 50 nA, common-mode range VEE to VCC-1.5V.
3	1IN+	input	Non-inverting input of op-amp channel 1. Input bias current typically 50 nA, common-mode range VEE to VCC-1.5V.
4	VEE	power_in	Negative supply / ground pin. Tie to GND for single-supply operation (VCC 3V to 36V) or to negative rail for split-supply operation (up to ±18V).
5	2IN+	input	Non-inverting input of op-amp channel 2. Input bias current typically 50 nA, common-mode range VEE to VCC-1.5V.
6	2IN-	input	Inverting input of op-amp channel 2. Input bias current typically 50 nA, common-mode range VEE to VCC-1.5V.
7	2OUT	output	Output of op-amp channel 2. Short-circuit protected; typical short-circuit current ±24 mA at VCC=5V, VEE=-5V.
8	VCC	power_in	Positive supply pin. Single-supply range 3V to 36V, dual-supply up to ±18V. Typical quiescent current 0.5 mA at VCC=5V, no load.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM258M/TR
LM258M-4K/TR
LM258N
LM258MM/TR
LM258MT/TR
LM258DQ2/TR
LM258DQ/TR
LM258DQ3/TR
LM258M8/TR

CAD (KiCad official)

Symbol: LM258M
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm258m.step`	122 KB	You want the bare part, or you mark your own boards.
`lm258m-etched.step`	1.5 MB	You want the part with `LM258M` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 365 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: HGSEMI datasheet (10 pp, sha256 c33210f515319561, retrieved 2026-08-17, 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: 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