MCRF202

MCRF202 125 kHz Passive RFID Device with Sensor Input Features External sensor input Data polarity changes with sensor input condition Read-only data transmission 96- or 128-bits of factory programming user memory (also supports 48- and 64-bit protocols) Operates up to 400 kHz carrier frequency Low-power operation Modulation options: - ASK, FSK, PSK Data Encoding options: - NRZ Direct, Differential Biphase Manchester Biphase Die, Wafer, PDIP or SOIC package option Factory programming and device serialization Applications Insect control Industrial tagging Reader RF Signal Data External MCRF202 Sensor Switch Package Type PDIP/SOIC VA NC TEST SENSOR 1 2 3 4 8 VB 7 NC 6 VSS 5 VCC Description The MCRF202 is a passive Radio Frequency Identification (RFID) device that provides an RF interface for reading the contents of a user memory array. This device is specially designed to detect the logic state of an external sensor, and alters its data transmissions, based on the condition of the sensor input. The device outputs a normal bit data stream if the sensor input has a logic ‘1’ state, but outputs an inverted data stream for a logic ‘0’ state. In this way, the reader can monitor the state (condition) of the external sensor input by detecting whether the data from the device is a normal or inverted data stream. The device is powered by rectifying the incoming RF carrier signal that is transmitted from the reader. When the device develops sufficient...