CP2102N-A02-GQFN20R

CP2102N-A02-GQFN20R is a Silicon Labs USB-to-UART bridge controller in QFN-20 (3 x 3 mm), supplied on tape and reel — for space-constrained USB device designs that need the CP2102N bridge without the larger QFN-24 or QFN-28 footprints. It integrates a USB 2.0 full-speed function controller, transceiver, oscillator and UART with data rates up to 3 Mbaud, four digital I/O pins, an on-chip voltage regulator and royalty-free virtual COM port drivers, requires no firmware development, draws 9.5 mA operating current and runs from -40°C to +85°C; this package has no USB battery-charge detection. Selection advice: choose the GQFN20 code for the smallest board area when four GPIOs are enough; choose the QFN-28 code when the design needs seven GPIOs or battery-charge detection, and note that the reel code ends in a single R — Silicon Labs does not use a TR suffix on this family. Silicon Labs lists the CP2102N-GQFN20 as a current USBXpress device on its product pages, checked 2026-10-20.