JMY503 is RFID reader/writer module with UART and IIC serial port. The design of JMY503 is low-power dissipation. 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. And the module and antenna are separate design. 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:

     Model number:JMY503L

     PCD: FM1702SL

     Working frequency: 13.56MHz

     RF standard: ISO14443A

     Operating distance: 70mm(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 ON

     EEPROM: 512 Bytes

     Interface: IIC&UART(selected by SPS pin, recommend to use IIC)

     Communication rate: IIC--400Kbps; UART--19.2Kbps/115.2Kbps

     Max.command length: 72 Bytes

     Interface level: 2.7V ~ 5. 5V(TTL level; 5V tolerance)

     Power supply: DC 2.7V ~ 5.0V

     Power consumption: 18mA, 0.1mA(CE=1)

     Dimension: 42mm×21mm×8mm

     Package: DIP32

     Weight: about 15g

     Operating temperature: -25 ~ +85 ℃ (-77 ~ +185°F)

     Storage temperature: -40 ~ +125 ℃ (-104 ~ +257°F)

     ISP: Supported

     RoHS: Compliant