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XC7866

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by Ray

Si Change Analog To Digital Converters (ADC), SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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XC7866

Si Change · Analog To Digital Converters (ADC) · SOT-23-6

XC7866 from Si Change, in a SOT-23-6. 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 REF/VDD power_in External reference input and power supply pin. Supply range 1.5V-4.5V. Requires 1μF and 10nF decoupling capacitors to GND placed as close to the pin as possible.
2 GND power_in Signal and power ground. All analog and digital signals are referenced to this pin.
3 VIN input Analog signal input. Single-ended, unipolar input with a range of 0 V to VDD.
4 SCLK input Serial clock input. Used to clock out data and also serves as the source of the conversion clock.
5 SDO output Serial data output for conversion results. MSB-first serial stream, with 4 leading zeros followed by the 12-bit result. Enters high-impedance state at the 16th SCLK falling edge or when CS is high.
6 CS input Active-low chip select. Used to gate the SCLK input, initiate conversion, and frame the output data. A low-to-high transition on CS places the device in auto-shutdown mode.

Key specifications

Parameter Value
Manufacturer Si Change
Package SOT-23-6
Category Data Acquisition
Pins 6

CAD (KiCad official)

  • Symbol: XC7866
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Si Change datasheet (4 pp, sha256 66c1c10faf190713, 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