# TMP75AIDR

**Texas Instruments** · Temperature Sensors · SOIC-8

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)
- 3D model files: `tmp75aidr-etched.step` / `tmp75aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmp75aidr.step` / `tmp75aidr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tmp75) (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](docs/tmp75aidr-datasheet.pdf)