TMP75AIDR 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	Serial data line for I2C/SMBus interface. Open-drain output; requires an external pull-up resistor (typically 4.7 kΩ to V+).
2	SCL	input	Serial clock input for I2C/SMBus interface. Open-drain compatible; requires an external pull-up resistor (typically 4.7 kΩ to V+).
3	ALERT	output	Over-temperature alert output (SMBus Alert). Open-drain output; requires an external pull-up resistor. Asserts when measured temperature crosses the programmed limit.
4	GND	power_in	Device ground reference. Connect to system ground.
5	A2	input	I2C slave address select bit 2. Tie to GND or V+ to program the device address. On TMP175 this pin may also be left floating for extra address states; on TMP75 tie to a valid logic level.
6	A1	input	I2C slave address select bit 1. Tie to GND or V+ to program the device address. On TMP175 this pin may also be left floating for extra address states.
7	A0	input	I2C slave address select bit 0. Tie to GND or V+ to program the device address. On TMP175 this pin may also be left floating for extra address states.
8	V+	power_in	Positive supply voltage input, 2.7 V to 5.5 V. Bypass to GND with 0.01 µF (updated recommendation in rev M) close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TMP75AIDR
TMP75AIDRAIDGKR
TMP75AIDRAIDGK

CAD (KiCad official)

Symbol: TMP75AIDR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (36 pp, sha256 cbc05025eccbda21, 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