AN3255

Application description

Doc ID 17784 Rev 1

5/24

1

Application description

1.1

Overview

This application is built around a short range RFID reader PCB developed by

STMicroelectronics. The PCB Gerber files and the user manual "CR14 and CRX14

reference design PCB Gerber files" (UM0672) are available from http://www.st.com.

This board is designed to be connected to a digital host, in this case an STM8S-

(see Figure 1).

The tags supported by this application must be based on ST contactless memories

compliant with ISO 14443 part2 type-B standard for the radio-frequency power and signal

interface.

This application has been tested using a tag based on ST SRI2K short range contactless

EEPROM. Refer to application note AN2866 explaining how to design a 13.56 MHz tag

antenna.

Figure 1.

Short range RFID reader solution

STLINK

SO16

footprint

RP1

RP2

Buzzer

Resistors

RFID reader PCB

STMicroelectronics

CR14

I2C bus

STM8S-DISCOVERY