component
TMP423BIDCNR
Public Made by Adomby adom
Texas Instruments Temperature and Humidity Sensor, SOT-23-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTMP423BIDCNR
Texas Instruments · Temperature and Humidity Sensor · SOT-23-8
TMP423BIDCNR from Texas Instruments, in a SOT-23-8. 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 | DXP1 | input | Channel 1 positive connection to remote temperature sensor diode/transistor. Sources a switched bias current (6-120µA) into the remote junction for BJT/diode temperature measurement. |
| 2 | DXP2 | input | Channel 2 positive connection to remote temperature sensor diode/transistor. Sources a switched bias current (6-120µA) into the remote junction for BJT/diode temperature measurement. |
| 3 | DXP3 | input | Channel 3 positive connection to remote temperature sensor diode/transistor. Sources a switched bias current (6-120µA) into the remote junction for BJT/diode temperature measurement. |
| 4 | DXN | input | Common negative connection shared by all three remote temperature sensor channels (Channel 1, 2, and 3). Tie to the emitter/cathode of each remote sense transistor/diode. |
| 5 | GND | power_in | Device ground reference. |
| 6 | SDA | bidirectional | SMBus serial data line, open-drain. Requires external pull-up resistor to V+. VOL = 0.15V typ at IOUT = 6mA; supports clock rates up to 3.4MHz. |
| 7 | SCL | input | SMBus serial clock line, open-drain. Requires external pull-up resistor to V+. Supports SMBus clock frequencies up to 3.4MHz. |
| 8 | V+ | power_in | Positive supply voltage, 2.7V to 5.5V. Quiescent current ~32µA typical at 0.0625 conv/s; ≤350µA during 3.4MHz SMBus activity. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-8 |
| Category | Sensor |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
TMP423BIDCNRTMP423BIDCNT
CAD (KiCad official)
- Symbol:
TMP423BIDCNR - Footprint:
Package_TO_SOT_SMD:SOT-23-8 - 3D model: SOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
tmp423bidcnr-etched.step/tmp423bidcnr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tmp423bidcnr.step/tmp423bidcnr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
b1463c54f57b513f, 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).