JMY501 series are RFID reader/writer module with UART and IIC serial ports. JMY501 has various functions and supports multi ISO/IEC standard of contactless card; the cards from different suppliers. The RF protocol is complex. But the designer combined some frequent used command of RF card and then user could operate the cards with full function by sending simple command to the module through IIC or UART interface. The impedance between RF module and antenna was tuned by impedance analyzer. And then the module has excellent performance and stability. The module and antenna is separate design. 4 wires are linked the antenna and module. Normally the wire should be less than 200mm, or it will affect the module's performance and stability. Qualifications: PCD: NXP RC500, RC531, RC632, RC400; FM1722 Working frequency: 13.56MHz RF standard: ISO14443A, ISO14443B, ISO15693 Operating distance: 100mm(depending on card and antenna design) Anti collision ability: Full function anti collision; be able to process multi-cards simultaneously; be able to set operate single card only Auto detecting card: Supported, default OFF EEPROM: 512Bytes Interface: IIC & UART (selected by SPS pin, recommend to use IIC) Communication rate: IIC--400Kbps, UART--19200bps/115200bps Max.command length: 511 Bytes Interface level: 3.3V (TTL level; 5V tolerance) Power supply: DC5V Power consumption: 70mA Dimension: 42mm¡Á21mm¡Á8mm Package: DIP32 Weight: about 15g Operating temperature: -77 ~ +185¡ãF Storage temperature: -104 ~ +257¡ãF ISP: Supported RoHS: Compliant 30 pcs per box, box size: 16cm*12cm*5cm.
