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Contents

README

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RS2251XS16

Jiangsu RUNIC Tech · Analog Switches, Multiplexers · SOIC-16

RS2251XS16 from Jiangsu RUNIC Tech, in a SOIC-16. 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 X4 passive Analog switch input X4; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
2 X6 passive Analog switch input X6; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
3 X passive Analog switch common output X; it connects to the selected channel X0-X7 as set by the A, B, C address inputs when ENABLE is low.
4 X7 passive Analog switch input X7; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
5 X5 passive Analog switch input X5; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
6 ENABLE input Digital enable input that is normally connected to GND; when it is high, no channel is turned on.
7 NC unconnected No connect.
8 GND power_in Ground; connect to digital ground.
9 C input Digital address C input used to select one of the eight analog channels.
10 B input Digital address B input used to select one of the eight analog channels.
11 A input Digital address A input used to select one of the eight analog channels.
12 X3 passive Analog switch input X3; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
13 X0 passive Analog switch input X0; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
14 X1 passive Analog switch input X1; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
15 X2 passive Analog switch input X2; the input and output pins are identical and interchangeable, and signals pass equally well in either direction.
16 VCC power_in Positive analog and digital supply voltage input; the device operates from 2.5 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOIC-16
Category Interface
Pins 16

CAD (KiCad official)

  • Symbol: RS2251XS16
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: rs2251xs16-etched.step / rs2251xs16-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs2251xs16.step / rs2251xs16.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (13 pp, sha256 6e58ff31b5a57ff3, retrieved 2026-10-09, 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