U3280M

Note:Stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition beyond those indicated in the operational section of these specification is not implied. Exposure to absolute maximum rating conditions for an extended period may affect device reliability. All inputs and outputs are protected against high electrostatic voltages or electric fields. However, precautions to minimize build-up of electrostatic charges during handling are recommended. Reliability of operation is enhanced if unused inputs are connected to an appropriate logic voltage level (for example, V_DD).

The U3280M is a transponder interface for use in contactless ID systems, remote control systems, tag and sensor applications. It supplies the microcontroller with power from an RF field via an LC-resonant circuit and it enables contactless bi-directionaldata communication via this RF field. It includes power management that handles switching between the magnetic field and a battery power supply. To store permanentdata like an identifier code and configuration data, the U3280M includes a 512-bit EEPROM with a serial interface.