TMP124AIDR

Texas Instruments · Temperature Sensors · SOIC-8

TMP124AIDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	SO/I	bidirectional	Serial data line used as SPI output for readings and as input for commands; VOL is 0.4 V max at 3 mA sink, VOH is (V+)-0.4 V min at 2 mA source, and input current is ±1 µA for 0 V to V+.
2	SCK	input	SPI serial clock input; logic high is VIH ≥ 0.7(V+) and logic low is VIL ≤ 0.3(V+), with a minimum SCK period of 100 ns and input current of ±1 µA.
3	NC	unconnected	No internal connection; the datasheet says this pin should be left open or floating.
4	GND	power_in	Device ground reference for the supply and digital interface.
5	ALERT	output	Open-drain alert output that requires an external pull-up resistor; VOL is 0.4 V max at 4 mA sink, leakage is ±1 µA for 0 V to 6 V, and polarity is set by the POL bit (active LOW by default).
6	NC	unconnected	No internal connection; the datasheet says this pin should be left open or floating.
7	CS	input	Chip select input; pulling CS low initiates communication with the device, and CS must meet the listed set-up and output timing (t5 min 40 ns, t6 max 30 ns).
8	V+	power_in	Supply voltage input, specified for 2.7 V to 5.5 V, to be bypassed with a 0.1 µF capacitor to GND.

Key specifications

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

CAD (KiCad official)

Symbol: TMP124AIDR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: tmp124aidr-etched.step / tmp124aidr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmp124aidr.step / tmp124aidr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (21 pp, sha256 1b44d3ad5232161d, retrieved 2026-10-08, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

# TMP124AIDR

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

TMP124AIDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SO/I | bidirectional | Serial data line used as SPI output for readings and as input for commands; VOL is 0.4 V max at 3 mA sink, VOH is (V+)-0.4 V min at 2 mA source, and input current is ±1 µA for 0 V to V+. |
| 2 | SCK | input | SPI serial clock input; logic high is VIH ≥ 0.7(V+) and logic low is VIL ≤ 0.3(V+), with a minimum SCK period of 100 ns and input current of ±1 µA. |
| 3 | NC | unconnected | No internal connection; the datasheet says this pin should be left open or floating. |
| 4 | GND | power_in | Device ground reference for the supply and digital interface. |
| 5 | ALERT | output | Open-drain alert output that requires an external pull-up resistor; VOL is 0.4 V max at 4 mA sink, leakage is ±1 µA for 0 V to 6 V, and polarity is set by the POL bit (active LOW by default). |
| 6 | NC | unconnected | No internal connection; the datasheet says this pin should be left open or floating. |
| 7 | CS | input | Chip select input; pulling CS low initiates communication with the device, and CS must meet the listed set-up and output timing (t5 min 40 ns, t6 max 30 ns). |
| 8 | V+ | power_in | Supply voltage input, specified for 2.7 V to 5.5 V, to be bypassed with a 0.1 µF capacitor to GND. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TMP124AIDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tmp124aidr-etched.step` / `tmp124aidr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tmp124aidr.step` / `tmp124aidr.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/tmp122) (21 pp, sha256 `1b44d3ad5232161d`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tmp124aidr-datasheet.pdf)