YST**3 series are RFID
reader/writer module which pick or send command by UART and IIC
ports. YST**3 series meet kinds of international contactless IC
card standards. Also YST**3 series can support kinds of cards from
suppliers. YST**3 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 **0mm, 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 CV**0 Working frequency:
*3.*6MHz RF standard:
ISO****3A Operating distance: *0 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 **0Kbps,
UART *9.2Kbps/**5.2Kbps Max command length: **8
Bytes Interface level: 3.3V (TTL level;
5V tolerance) Power consumption:
*0mA Dimension:
*2mm**1mm*8mm Package: DIP*2 Weight about: *5g
