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CP2102N-A02-GQFN20R

Public Made by Adom

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SKYWORKS SILICON LABS USB Converters, QFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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CP2102N-A02-GQFN20R

SKYWORKS SILICON LABS · USB Converters · QFN-20-EP(3x3)

CP2102N-A02-GQFN20R from SKYWORKS SILICON LABS, in a QFN-20-EP(3x3). 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 GPIO.1/RS485 bidirectional Digital input/output general purpose I/O, alternatively a digital output RS485 control signal.
2 GPIO.0/CLK bidirectional Digital input/output general purpose I/O, alternatively a digital output clock output.
3 GND power_in Ground.
4 D+ bidirectional USB Data Positive.
5 D- bidirectional USB Data Negative.
6 VDD power_in Supply power input / 5V regulator output (3.3 V regulator output per feature list); 4.7 µF and 0.1 µF bypass capacitors required.
7 VREGIN power_in 5V regulator input.
8 VBUS power_in Digital input VBUS sense; connect to the USB VBUS signal, where a 5 V signal indicates a USB network connection.
9 RSTb bidirectional Active-low reset, driven low during power-on and power failure resets; a 1 kΩ pull-up to VDD is recommended.
10 NC unconnected No connect; leave this pin floating.
11 SUSPENDb output Digital output driven low when the device enters the USB suspend state.
12 GND power_in Ground.
13 WAKEUP input Digital input remote USB wakeup interrupt input.
14 SUSPEND output Digital output driven high when the device enters the USB suspend state.
15 CTS input Digital input Clear To Send control input (active low).
16 RTS output Digital output Ready To Send control output (active low).
17 RXD input Digital input asynchronous data input (UART Receive).
18 TXD output Digital output asynchronous data output (UART Transmit).
19 GPIO.3/RXT bidirectional Digital input/output general purpose I/O, alternatively a digital output receive LED toggle.
20 GPIO.2/TXT bidirectional Digital input/output general purpose I/O, alternatively a digital output transmit LED toggle.
21 GND power_in Center exposed pad, ground.

Key specifications

Parameter Value
Manufacturer SKYWORKS SILICON LABS
Package QFN-20-EP(3x3)
Category Interface
Pins 21

CAD (KiCad official)

  • Symbol: CP2102N-A02-GQFN20R
  • Footprint: Package_DFN_QFN:UQFN-20-1EP_3x3mm_P0.4mm_EP1.85x1.85mm
  • 3D model: QFN-20-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: cp2102n-a02-gqfn20r-etched.step / cp2102n-a02-gqfn20r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cp2102n-a02-gqfn20r.step / cp2102n-a02-gqfn20r.glb are the bare package body.

Provenance

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

  • Datasheet: SKYWORKS SILICON LABS datasheet (48 pp, sha256 70ea7a01045ccfb0, 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