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EHUOYAN
YHY522R
RFID module
Page 4 of 36
1. Introduction
This document describes the functionality of the contactless reader/writer
YHY522R . It includes the functional and electrical specifications.
2. General description
The YHY522R is a highly integrated reader/writer for contactless
communication at 13.56MHz.The YHY522R reader supports ISO14443A/
MIFARE
®
mode.
The YHY522R has built-in transceiver antenna to communicate with
ISO/IEC 14443A/ MIFARE
®
cards without additional circuitry. The module
provides a robust and efficient implementation of a demodulation and
decoding circuitry for signals from ISO/IEC 14443A/ MIFARE
®
compatible
cards and transponders. The digital part handles the complete ISO/IEC
14443A framing and error detection(Parity & CRC).
In the master mode, YHY522R will seek the card or data itself and output to
host automatically.
In the slave mode, the module just needs only one command to finish one
action, such as read or write data from card’s block. The user does not need
input three steps : request, anticollision and selection. The module will do this
function for you automatically. What you need is just sending one command
to the module. Then it will send back what you want. Anything is just so
simple and so easy. Also, if there is any card goes into the rf field, the red led
on the module will light and the IRQ pin will change from “1” to “0” to indicate
the event.
Host
interface
:
Serial RS232
3. Features
▲
Can detect UID clone card
▲
Small size and built-in antenna on board
▲
Auto scan for presence of tags and upload data
▲
NFC NDEF text commands
▲
Encrypted EEPROM to store up to 40 groups of keys
▲
Contactless operating frequency 13.56 MHz
▲
Supports ISO14443A ,Mifare
®
Classic1K,Mifare
®
UltraLight, NTAG213
▲
RS232 Interface, baud rate up to 230400bps,default 19200bps
▲
Typical Operating Distance: 0 ~5cm
▲
Operating Voltage
:
DC 5.0V
▲
1 LED indicator,