Description

 JMY**3 is RFID reader/writer module with UART and IIC serial port. The design of JMY**3 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 **0mm, or it will affect the module's performance and stability.

• Qualifications:
• • PCD: FM***2SL
• • Working frequency: *3.*6MHz
• • RF standard: ISO****3A
• • Operating distance: *0mm(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: **2 Bytes
• • Interface: IIC&UART(selected by SPS pin, recommend to use IIC)
• • Communication rate: IIC****0Kbps; UART***9.2Kbps/**5.2Kbps
• • Max.command length: *2 Bytes
• • Interface level: 2.7V ~ 5. 5V(TTL level; 5V tolerance)
• • Power supply: DC 2.7V ~ 5.0V
• • Power consumption: *8mA, 0.1mA(CE=1)
• • Dimension: *2mm×*1mm×8mm
• • Package: DIP*2
• • Weight: about *5g
• • Operating temperature: **5 ~ **5 ℃ (**7 ~ ***5°F)
• • Storage temperature: **0 ~ ***5 ℃ (***4 ~ ***7°F)
• • ISP: Supported
• • RoHS: Compliant