User Guide

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DB9

Connector

RS232 Transceivers

Remote Wakeup

Push Button

CP2102N Device

USB Connector

JP1 - Battery Charger and

GPIO Header

J1 - UART Signal

Access Connector

JP3 - Ground and

RSTb Header

JP2 - Power

Configuration Header

Figure 5.1. CP2102N Evaluation Board

5.1 USB Interface (J4)

A Universal Serial Bus (USB) connector (J4) is provided to facilitate connections to the USB interface on the CP2102N. See the table

below for the USB pin definitions.

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 5.2. USB Connector Pin Descriptions

Pin Number Description

1 VBUS

2 D-

3 D+

4 GND (Ground)

UG205: CP2102N-EK Kit User's Guide

Hardware Overview

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