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Contents

README

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TMP423AIDCNR

Texas Instruments · Temperature Sensors · SOT-23-8

TMP423AIDCNR from Texas Instruments, in a SOT-23-8. 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 DXP1 input Channel 1 positive connection to remote temperature sensor.
2 DXP2 input Channel 2 positive connection to remote temperature sensor.
3 DXP3 input Channel 3 positive connection to remote temperature sensor.
4 DXN input Common negative connection to remote temperature sensors, Channels 1, 2, and 3.
5 GND power_in Ground reference.
6 SDA tri_state Serial data line for SMBus, open-drain output; requires pull-up resistor to V+.
7 SCL tri_state Serial clock line for SMBus, open-drain output; requires pull-up resistor to V+.
8 V+ power_in Positive supply voltage with range 2.7V to 5.5V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-8
Category Sensors
Pins 8

CAD (KiCad official)

  • Symbol: TMP423AIDCNR
  • Footprint: Package_TO_SOT_SMD:SOT-23-8
  • 3D model: SOT-23-8 (KiCad packages3D, STEP)
  • 3D model files: tmp423aidcnr-etched.step / tmp423aidcnr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tmp423aidcnr.step / tmp423aidcnr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (36 pp, sha256 a8969604cee2986f, retrieved 2026-10-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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