User Guide

5. Hardware Overview
The CP2102N Evaluation Kit includes an evaluation board with a CP2102N device pre-installed for evaluation and preliminary software
development. Numerous input/output (I/O) connections are provided to facilitate prototyping using the evaluation board. Refer to the
figure below for the locations of the various I/O connectors.
Note: There is a restriction on the maximum VBUS voltage. Take care not to connect the board to USB (and thus VBUS to the USB 5V
supply) while VDD is shorted to VREGIN on JP2 without first externally powering VDD via J2. See the Typical Connection Diagrams
chapter in the device data sheet for more information.
Table 5.1. CP2102N Evaluation Board Component Overview
Component Description
D7 SUSPENDb indicator LED
D1 GPIO.0 indicator LED
D2 GPIO.1 indicator LED
D3 GPIO.2 indicator LED
D4 GPIO.3 indicator LED
D5 GPIO.4 indicator LED
D6 GPIO.5 indicator LED
D11 GPIO.6 indicator LED
D8 CHR1 indicator LED
D9 CHR0 indicator LED
D10 CHREN indicator LED
J1 UART signal access connector
J2 VDD header
J3 Ground header
J4 USB connector for USB interface
J5 DB9 connector for RS232 interface
JP1 Battery Charger Detect and GPIO access connector
JP2 Power pins (VDD, VREGIN, and VBUS) access connector. This
connector can select between a bus-powered configuration
(VBUS connected to VREGIN) or self-powered configuration
(VREGIN connected to VDD with VDD powered externally).
JP3 Ground and RSTb header
UG205: CP2102N-EK Kit User's Guide
Hardware Overview
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