YST**4 series are RFID
reader/writer module which pick or send command by UART and IIC
ports. YST**4 series meet kinds of international contactless IC
card standards. Also YST**4 series can support kinds of cards from
suppliers. YST**4 series RF antenna is separated from the module.
The module is connected to the antenna by the *0Ω cable. It is with
flexible
antenna size and layout. The RFID module can be very
good at reading/writing and very stable for impedance analyzer
adjusting between RF circuit and antenna. Characters: The module is connected to the
antenna by the *0Ω cable. It is with flexible antenna
size and layout. 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 Cable to antenna: *0cm, can be
custom-made, 0.**1.5mm 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
