LM75AIMMX from Texas Instruments, in a VSSOP-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. Compatible with I2C bus speeds up to 400 kHz.
2	SCL	input	I2C serial clock input from the bus controller. Requires an external pull-up resistor (or current source) to +VS. Input logic levels are referenced to +VS (VIH = 0.7·VS, VIL = 0.3·VS).
3	O.S.	output	Over-temperature shutdown open-drain output. Asserts (active low) when the measured temperature exceeds the programmed TOS limit; behavior is comparator or interrupt mode per the Configuration register. Sink capability up to 10 mA; connect a pull-up resistor to the host interrupt line and it may be wire-OR'd with other O.S. outputs.
4	GND	power_in	Power supply ground reference for the device. Connect to the system ground plane.
5	A2	input	User-set I2C address input bit 2. Tie to GND for logic '0' or to +VS for logic '1' to select one of eight possible slave addresses on the shared 2-wire bus.
6	A1	input	User-set I2C address input bit 1. Tie to GND for logic '0' or to +VS for logic '1' to select the slave address.
7	A0	input	User-set I2C address input bit 0 (LSB). Tie to GND for logic '0' or to +VS for logic '1' to select the slave address.
8	+VS	power_in	Positive supply voltage input, 2.7 V to 5.5 V. Bypass locally with a 100 nF ceramic capacitor mounted close to the pin, plus 10 µF bulk capacitance in the near vicinity. Typical operating current is 280 µA (4 µA in shutdown).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

LM75AIMMX
LM75AIMMXIMX

CAD (KiCad official)

Symbol: LM75AIMMX
Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
3D model: VSSOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (31 pp, sha256 852d26dc7c785da0, retrieved 2026-08-17, tier: lcsc)
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