YST304 is based on NXP CV520 chip design, it support UART or IIC interface and fully compatible with ISO14443A, the dimension is 42mm*21mm*8mm.
YST303 is the high performance RFID module. The module and antenna are separate design. 50Ω
cable are linked the antenna and module. The antenna can be used at will.
YST304 series are RFID reader/writer module which pick or send command by UART and IIC ports. YST304 series meet kinds of international contactless IC card standards. Also YST304 series can support kinds of cards from suppliers. YST304 series RF antenna is separated from the module. The module is connected to the antenna by the 50Ω cable. The antenna can be used at will. The RFID module can be very good at reading/writing and very stable for impedance analyzer adjusting between RF circuit and antenna.
Characters:
The antenna is connected to the module by 50Ω cable. The antenna can be used at will. The size and structure are flexible.
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
