component

HDC1080

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by adom

TI digital I2C relative-humidity + temperature sensor, WSON-6. ±2% RH, ±0.2 C, low power. Datasheet-verified.

componentsensorhumiditytemperaturei2cwson-6texas-instruments
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs hdc1080: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers cross-highlight symbol + footprint viewers · Ray 2mo ago
hdc1080-etched.fit.json hdc1080: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
hdc1080-etched.glb hdc1080: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
hdc1080-etched.step hdc1080: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
HDC1080.adom-lbr.json HDC1080: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray 2mo ago
hdc1080.glb real KiCad STEP + regenerated 3D (was service-kicad stand-in) · Ray 2mo ago
hdc1080.kicad_mod Publish 0.1.0 · Ray 2mo ago
hdc1080.kicad_sym Publish 0.1.0 · Ray 2mo ago
hdc1080.lbr add validated EAGLE .lbr (Fusion library) · Ray 2mo ago
HDC1080.lbr HDC1080: validated Fusion/EAGLE library + adom-lbr hub, generated from this page's KiCad sources · Ray 2mo ago
hdc1080.step real KiCad STEP + regenerated 3D (was service-kicad stand-in) · Ray 2mo ago
package.json Publish 0.1.0 · Ray 2mo ago
page.json hdc1080: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md hdc1080: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

HDC1080

Texas Instruments · I2C humidity + temperature sensor · WSON-6

A digital relative-humidity and temperature sensor with an I2C interface, in a tiny WSON-6. It measures humidity to about plus/minus 2% RH and temperature to plus/minus 0.2 C, returning both as calibrated 14-bit values over two wires, so a microcontroller reads climate directly with no analog front end. It runs on very little power (a few tenths of a microamp averaged at a low sample rate), which suits battery humidistats, weather nodes, and HVAC sensing, and an on-chip heater can drive off condensation. Runs 2.7-5.5 V. The 3D model shown is a representative 6-pin DFN; the real package is WSON-6 (DMB).

Pinout

Pin Name Type Function
1 SDA bidirectional Serial data line for I2C. Open-drain output; requires an external pull-up resistor to VDD (typical 10 kΩ at 3.3 V). Supports standard/fast I2C up to 400 kHz.
2 GND power_in Ground reference (0 V) for the device.
3 NC unconnected No internal connection. May be left floating or connected to GND.
4 NC unconnected No internal connection. May be left floating or connected to GND.
5 VDD power_in Supply voltage input. Recommended operating range 2.7 V to 5.5 V (nominal 3.0 V). Absolute maximum -0.3 V to 6 V. Decouple to GND with a 100 nF capacitor located close to the pin.
6 SCL input Serial clock line for I2C. Open-drain input; requires an external pull-up resistor to VDD (typical 10 kΩ at 3.3 V). Supports clock frequencies from 10 kHz up to 400 kHz.
DAP DAP unconnected Die Attach Pad on bottom of the package. Should be left floating (not soldered to any net). Not shown on the top-view pin diagram.

Key specifications

Parameter Value
Type I2C humidity + temperature sensor
Humidity accuracy ±2% RH
Temperature accuracy ±0.2 °C
Resolution 14-bit (RH and temp)
Interface I2C
Extras integrated heater
Supply voltage 2.7-5.5 V
Package WSON-6 (DMB)

Ordering variants

Same part, different packaging or reel option.

  • HDC1080DMBR (WSON-6)
  • HDC1080DMBT (WSON-6, small reel)

CAD (KiCad official)

  • Symbol: Sensor_Humidity:HDC1080
  • Footprint: Package_SON:Texas_PWSON-N6
  • 3D model: 6-pin DFN (representative; real package WSON-6)
  • 3D model files: hdc1080-etched.step / hdc1080-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hdc1080.step / hdc1080.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 ff9fed45056ad057, retrieved 2026-08-17, tier: manufacturer)
  • 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