ATA5551M-PPMY Standard Read/Write ID Transponder with Anti-collision DATASHEET Features Read/write anti-collision ID transponder in plastic package Contactless read/write data transmission Inductive coupled power supply at 125kHz Basic component: R/W Atmel IDIC e5551 Anti-collision mode by password request E.g. 10 transponders read out in < 500ms (RF/32, Maxblock 2) depending on the application Built-in coil and capacitor for circuit antenna Starts with cyclical data read out 224-bit EEPROM user programmable in 32-bit blocks Typically < 50ms to write and verify a block Write protection by lock bits Malprogramming protection Options set by EEPROM Bit rate bit/s : RF/8, RF/16, RF/32, RF/40, RF/50, RF/64, RF/100, RF/128 Modulation: BIN, FSK, PSK, Manchester, bi-phase Application Access control systems Brand protection Process control and automation systems Installation and medical equipment Asset management systems Industrial 9334B-RFID-05/141. Description The Atmel ATA5551M-PPMY is a completely programmable R/W transponder which implements all important functions for identification systems, including anti-collision (e.g., 10 transponders in < 500ms depending on the application). It allows the contactless reading and writing of data which are transmitted bi-directionally between a read/write base station and the transponder. It is a plastic-packaged device which accommodates the IDIC e5551 and also the antenna realized as an LC- circuit. No additional external power supply is necessary for the transponder because it receives power from the RF field generated by the base station. Data are transmitted by modulating the amplitude of the RF field. The Atmel ATA5551M- PPMY can be used to adjust and modify the ID code or any other stored data, e.g., rolling code systems. The on-chip 264-bit EEPROM (8 blocks, 33 bits per block) can be read and written block wise from the base station. The blocks can be protected against overwriting. One block is reserved for setting the operation modes of the IC. Another block can obtain a password to prevent unauthorized writing. Figure 1-1. System Block Diagram 2. General The transponder is the mobile part of the closed coupled identification system (see Figure 4-1 on page 3), whereas the reader (writer) is based on an IC or on discrete solutions, and the read/write transponder is based on the Atmel IDIC e5551. The transponder is a plastic cube device consisting of the following parts: The transponder antenna, realized as a tuned LC circuit Read/write Atmel IDIC (e5551) with EEPROM 3. Transponder Antenna The antenna consists of a coil and a capacitor for tuning the circuit to the nominal carrier frequency of 125kHz. The coil has a ferrite core for improving the distance of read, write and programming operations. 2 ATA5551M-PPMY DATASHEET 9334BRFID05/14