LM75AIMX 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	SDA	bidirectional	I2C serial bi-directional data line, open-drain. Requires an external pull-up resistor or current source to +Vs. Operates up to 400 kHz.
2	SCL	input	I2C serial clock input. Driven by the bus controller; requires external pull-up to +Vs. Operates up to 400 kHz.
3	O.S.	output	Overtemperature Shutdown output, open-drain. Requires an external pull-up resistor; drives a controller interrupt line. Programmable T_OS/T_HYST limits with user-configurable fault-tolerance (up to 6 consecutive over-limit conversions). I_OL up to 4 mA (V_OL max 0.8 V).
4	GND	power_in	Power supply ground reference for the device.
5	A2	input	User-set I2C address input bit 2. Tie to GND for logic '0' or to +Vs for logic '1'. Combined with A1/A0, allows up to eight LM75A devices on the same bus.
6	A1	input	User-set I2C address input bit 1. Tie to GND for logic '0' or to +Vs for logic '1'.
7	A0	input	User-set I2C address input bit 0. Tie to GND for logic '0' or to +Vs for logic '1'.
8	+VS	power_in	Positive supply voltage input, 2.7 V to 5.5 V. Bypass with a 100 nF ceramic capacitor close to the pin and a 10 µF bulk capacitor in the near vicinity. Typical operating current 280 µA; 4 µA in shutdown mode.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Sensor
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM75AIMX
LM75AIMXIMM
LM75AIMXIMMX

CAD (KiCad official)

Symbol: LM75AIMX
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm75aimx.step`	122 KB	You want the bare part, or you mark your own boards.
`lm75aimx-etched.step`	1.3 MB	You want the part with `LM75AIMX` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 348 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: Texas Instruments datasheet (30 pp, sha256 004750df9cb9c1b1, 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