Description
EM MICROELECTRONIC - MARIN SA www.DataSheet4U.com EM4022 Multi Frequency Contactless Identification Device Anti-Collision compatible with BTG's Sup.
The EM4022 (previously named P4022) chip implements patented anti-collision protocols for both high frequency and low frequency applications.
Features
* Implements all BTG anti-collision protocols: Fast SWITCH-OFF, SLOW-DOWN, and FREE-RUNNING Can be used to implement low frequency inductive coupled transponders, high frequency RF coupled transponders or bi-frequency transponders Reading 500 transponders in less than one second for high frequency app
Applications
* It is even possible to identify transponders with identical codes, thereby making it possible to count identical items. The chip is typically used in “passive” transponder applications, i. e. it does not require a battery power source. Instead, it is powered up by an electromagnetic energy field or