SiLCP2102N-A02-GQFN20R
Overview
The CP2102N-A02-GQFN20R is a high-performance USB-to-UART bridge controller from Silicon Labs designed to provide a simple solution for updating RS-232 designs to USB. It features a highly integrated design including a USB 2.0 full-speed function controller, USB transceiver, oscillator, and UART in a compact 3x3mm QFN20 package. This device requires no external crystal or firmware development, significantly reducing PCB footprint and time-to-market.
Why Choose This Part
The device eliminates the need for external components by integrating the clock and voltage regulator, drawing only 9.5mA at 115200 baud. It supports high-speed data transfer up to 3 Mbaud and includes a 960-byte programmable ROM for customizing USB descriptors. Silicon Labs provides royalty-free Virtual COM Port (VCP) drivers, ensuring broad compatibility with Windows, macOS, and Linux.
Applications
Key Specifications
Getting Started
Engineers can use the Simplicity Studio Xpress Configurator to customize the device's GPIOs and USB strings without writing firmware. Evaluation can be performed using the CP2102N-EK evaluation kit, which provides access to all pins and simple micro-USB connectivity. For hardware design, ensure the 20-QFN exposed pad is properly soldered to a ground plane for thermal and electrical performance.
CP2102N Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Stock |
|---|---|---|
| CP2102N-A02-GQFN20R (this part) | WFQFN-20 | 8,831 |
| CP2102N-A02-GQFN20 | WFQFN-20 | 29,060 |
| CP2102N-A02-GQFN24R | VFQFN-24 | 10,904 |



