component
AI32C
Public Made by Adomby adom
Sam wing Touch Sensors, SOP-8. Pinout extracted from the datasheet, 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
markdownAI32C
Sam wing · Touch Sensors · SOP-8
AI32C from Sam wing, in a SOP-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 | C1 | passive | Internal reference capacitor interface. Connect a 4.7 nF NPO capacitor (range 1 nF-10 nF) between this pin and ground; place capacitor as close to the IC as possible. |
| 2 | KEY1 | input | Capacitive touch key 1 input. Highest priority key. Optionally add a 0-10 pF NPO capacitor to ground for sensitivity trim (open = highest sensitivity). |
| 3 | KEY2 | input | Capacitive touch key 2 input. Second priority. Optionally add a 0-10 pF NPO capacitor to ground for sensitivity trim. |
| 4 | KEY3 | input | Capacitive touch key 3 input. Lowest priority. Optionally add a 0-10 pF NPO capacitor to ground for sensitivity trim. |
| 5 | OUT2 | output | Encoded data output bit 2 (MSB of 2-bit key code). Combined with OUT1: 00=KEY1, 01=KEY2, 10=KEY3, 11=no key pressed. High/low logic level output. |
| 6 | OUT1 | output | Encoded data output bit 1 (LSB of 2-bit key code). Combined with OUT2 to encode which key is pressed. High/low logic level output. |
| 7 | VDD | power_in | Positive supply, 2.5 V to 5.5 V. Recommend a 100 nF decoupling cap to GND and an optional 20 Ω series resistor from the board VDD rail to suppress noise. Typical Ivdd = 394 uA @ 3.0 V, 666 uA @ 5.0 V. |
| 8 | GND | power_in | Power ground / reference. Common return for supply, output logic, and touch reference. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Sam wing |
| Package | SOP-8 |
| Category | Sensor |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
AI32C - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ai32c-etched.step/ai32c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ai32c.step/ai32c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Sam wing datasheet (7 pp, sha256
59ec1134044746a1, 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).