YST303 series are RFID reader/writer module which pick or send command by UART and IIC ports. YST303 series meet kinds of international contactless IC card standards. Also YST303 series can support kinds of cards from suppliers. YST303 series RF antenna is separated from the module. The RFID module can be very good at reading/writing and very stable for impedance analyzer adjusting between RF circuit and antenna.4wires are linked the antenna and module. Normally the wire should be less than 200mm, or it will affect the modules performance and stability.
Qualifications
Where it can be used: bus, access control system, bank, water meter, etc.
PCD: NXP CV520
Working frequency: 13.56MHz
RF standard: ISO14443A
Operating distance: 80 mm (depending on card and antenna design)
Anti collision ability: Full functions anti collision; be able to process multi-card simultaneously; be able to set operate single card only.
Auto detecting card: yes, default OFF
Interface: IIC &UART (selected by SPS pin, IIC is better)
Communication rate: IIC 400Kbps, UART 19.2Kbps/115.2Kbps
Max command length: 128 Bytes
Interface level: 3.3V (TTL level; 5V tolerance)
Power consumption: 50mA
Dimension: 42mm*21mm*8mm
Package: DIP32
Weight about: 15g
Operating temperature: -25～+85℃(-77～+185℉)
Storage temperature: -40～+125℃(-104～+257℉)
ISP: Yes
