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SD8224C-4

Public Made by Adom

by adom

SHOUDING Touch Sensors, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SD8224C-4

SHOUDING · Touch Sensors · SOP-16

SD8224C-4 from SHOUDING, in a SOP-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 TP0 bidirectional Touch input port for key 0; sensitivity is adjusted with an external capacitor Cs0 of 1 to 50pF.
2 TP1 bidirectional Touch input port for key 1; sensitivity is adjusted with an external capacitor Cs1 of 1 to 50pF.
3 TP2 bidirectional Touch input port for key 2; sensitivity is adjusted with an external capacitor Cs2 of 1 to 50pF.
4 TP3 bidirectional Touch input port for key 3; sensitivity is adjusted with an external capacitor Cs3 of 1 to 50pF.
5 AHLB input Selects active-high or active-low output level (CMOS input with pull-down, default 0 = active high).
6 VDD power_in Positive supply voltage, 2.4V to 5.5V with internal regulator and LVR enabled (2.0V to 5.5V with them disabled).
7 TOG input Selects toggle (trigger) output mode versus direct output mode (CMOS input with pull-down, default 0).
8 LPMB input Selects fast mode (tied to VDD) or low-power mode (floating or tied to VSS, default 0).
9 MOT0 input Maximum key output time select bit 0 with MOT1: 120s, 64s, 16s or infinite (CMOS input with pull-up, default 1).
10 VSS power_in Negative supply voltage, ground.
11 OD input Selects open-drain output when 0 (CMOS input with pull-up, default 1 = CMOS output).
12 SM input Selects multi-key output (1, default) or single-key output (0) (CMOS input with pull-up).
13 TPQ3 output Direct output port corresponding to touch input TP3.
14 TPQ2 output Direct output port corresponding to touch input TP2.
15 TPQ1 output Direct output port corresponding to touch input TP1.
16 TPQ0 output Direct output port corresponding to touch input TP0.

Key specifications

Parameter Value
Manufacturer SHOUDING
Package SOP-16
Category Sensors
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating temperature Top -40 85 °C 8
Storage temperature TSTG -50 125 °C 8
Supply voltage VDD -0.3 6 V relative to VSS 8
Input voltage VIN -0.3 0.3 V VSS-0.3 to VDD+0.3 (max is VDD+0.3) 8
Operating voltage (internal regulator/LVR disabled) VDD 2 5.5 V internal regulator/LVR disabled; TA=25°C 8
Operating voltage (internal regulator/LVR enabled) VDD 2.4 5.5 V internal regulator/LVR enabled; TA=25°C 8
Internal regulator output VREG 2.1 2.2 2.3 V 8
Internal LVR threshold LVR 2.2 2.3 2.4 V 8
Operating current, low-power mode (1) Iop1 4.5 6.8 uA VDD=3V low-power mode 8
Operating current, low-power mode (2) Iop1 4 6 uA VDD=3V low-power mode 8
Operating current, fast mode, regulator and LVR enabled Iop1 22 33 uA VDD=3V fast mode, internal regulator enabled, LVR enabled 8
Operating current, fast mode, regulator enabled, LVR disabled Iop1 20 30 uA VDD=3V fast mode, internal regulator enabled, LVR disabled 8
Input low voltage VIL 0 0.2 VDD 8
Input high voltage VIH 0.8 1 VDD 8
Output sink current IOL 8 mA VDD=3V, VOL=0.6V 8
Output source current IOH -4 mA VDD=3V, VOH=2.4V 8
Input pull-up resistance RPH 30 kohm VDD=3V 8
Input pull-down resistance RPL 25 kohm VDD=3V 8
Key response time, fast mode TR 60 mS VDD=3V, fast mode 8
Key response time, low-power mode TR 160 mS VDD=3V, low-power mode 8

CAD (KiCad official)

  • Symbol: SD8224C-4
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: sd8224c-4-etched.step / sd8224c-4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sd8224c-4.step / sd8224c-4.glb are the bare package body.

Provenance

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

  • Datasheet: SHOUDING datasheet (11 pp, sha256 d1cbf6e89d56e892, retrieved 2026-10-22, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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