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Contents

README

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PT2046AS8

PinTeng · Touch Sensors · SOP-8

PT2046AS8 from PinTeng, 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 TP0 bidirectional Touch input port 0. Connects to touch pad; supports optional external Cs0 capacitor (1~50pF) to GND for sensitivity tuning. Typically driven through a ~2K series resistor Rs0.
2 TP1 bidirectional Touch input port 1. Connects to touch pad; supports optional external Cs1 capacitor (1~50pF) to GND for sensitivity tuning. Typically driven through a ~2K series resistor Rs1.
3 TP2 bidirectional Touch input port 2. Connects to touch pad; supports optional external Cs2 capacitor (1~50pF) to GND for sensitivity tuning. Typically driven through a ~2K series resistor Rs2.
4 VDD power_in Positive supply voltage, 2.4V to 5.5V (typ 5V). Decouple with 0.1uF and 10uF to VSS. Battery-supplied applications only; not suitable for capacitor-dropper or noisy rails.
5 VSS power_in Negative supply / ground reference.
6 QD2 output Active-low open-drain output port 2, corresponds to touch input TP2. Requires external pull-up resistor (e.g. 4.7K to VDD). Sink capability 40mA typ @ VDD=5V, 19mA typ @ VDD=3V (VOL=0.3*VDD).
7 QD1 output Active-low open-drain output port 1, corresponds to touch input TP1. Requires external pull-up resistor (e.g. 4.7K to VDD). Sink capability 40mA typ @ VDD=5V, 19mA typ @ VDD=3V (VOL=0.3*VDD).
8 QD0 output Active-low open-drain output port 0, corresponds to touch input TP0. Requires external pull-up resistor (e.g. 4.7K to VDD). Sink capability 40mA typ @ VDD=5V, 19mA typ @ VDD=3V (VOL=0.3*VDD).

Key specifications

Parameter Value
Manufacturer PinTeng
Package SOP-8
Category Sensors
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • PT2046AS8
  • PT2046AS8T6

CAD (KiCad official)

  • Symbol: PT2046AS8
  • 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: PinTeng datasheet (8 pp, sha256 3e788928e1f54306, 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