CP2101R Overview
28-VFQFN Exposed Pad contains it. With its Tape & Reel (TR)-shaped packaging, it's easy to carry. Temperature regulation to -40°C~85°C ensures reliable operation. Using a 3V~3.6VV power source should be fine. As a member of the CP2101 family, it is a prime number. It operates by using 28 pins. Set the supply current to 25mA for the gadget. When the supply voltage is set to 3.6V, maximum efficiency is achieved.
CP2101R Features

CP2101R Applications
There are a lot of Silicon Labs
CP2101R Controllers Interface ICs applications.

LAN Servers
PC Motherboards
0 to 10V Dimming Luminaires
Dimmable LED Power Supply
Dimming Control Devices
Commercial LED Lighting
Smart LED Lighting
Portable Appliances
Battery-Operated Devices
Cellular Data Devices

Package / Case	28-VFQFN Exposed Pad
Number of Pins	28
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2000
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Voltage - Supply	3V~3.6V
Base Part Number	CP2101
Function	Bridge, USB to UART
Operating Supply Voltage	3.6V
Interface	UART
Operating Supply Current	25mA
Nominal Supply Current	25mA
Protocol	USB
Standards	USB 2.0
Radiation Hardening	No
RoHS Status	Non-RoHS Compliant
Lead Free	Contains Lead