AI02C sop8 from Sam wing AI02C sop8, 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	GND	power_in	Power ground (0 V) reference for the device.
2	C1	passive	Internal reference capacitor pin. Connect a 4.7 nF (range 1 nF-10 nF) NPO-grade capacitor to GND, placed close to the IC. Sets the internal balance/reference capacitance for the sensing engine.
3	KEY1	input	Capacitive touch sense input for channel 1. Connects through a 2 kΩ series resistor to the touch pad/electrode; an optional CX sensitivity capacitor (0-10 pF, typ. 0 pF/open) tunes sensitivity.
4	KEY2	input	Capacitive touch sense input for channel 2. Connects through a 2 kΩ series resistor to the touch pad/electrode; optional CX sensitivity capacitor (0-10 pF) tunes sensitivity.
5	OUT2	output	Channel 2 touch output. Polarity and behavior depend on the MD pin: MD floating → open-drain active-low (needs external pull-up); MD=VDD → push-pull direct active-high; MD=GND → toggle/latched output (initial low).
6	OUT1	output	Channel 1 touch output. Polarity and behavior depend on the MD pin: MD floating → open-drain active-low (needs external pull-up); MD=VDD → push-pull direct active-high; MD=GND → toggle/latched output (initial low).
7	MD	input	Output mode select. Float = open-drain active-low output (external pull-up required). Tied to VDD = direct/push-pull active-high (momentary). Tied to GND = toggle (self-latching) mode, initial state low.
8	VDD	power_in	Positive supply, 2.5-5.5 V (absolute max 6.0 V). A 20 Ω series resistor between the board VDD and this pin plus a 100 nF decoupling capacitor to GND is recommended. Typical operating current 394 µA @ 3 V, 666 µA @ 5 V; sleep current 7 µA @ 3 V, 11 µA @ 5 V.

Key specifications

Parameter	Value
Manufacturer	Sam wing AI02C sop8
Package	SOP-8
Category	Sensor
Pins	8

CAD (KiCad official)

Symbol: AI02C sop8
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Sam wing AI02C sop8 datasheet (8 pp, sha256 dfb17da9fde947e4, 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