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ATA5577M1330C-PP 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
RF射频器件
封装:
TRANSPONDER (PP)
描述:
RFID应答器 125kHz Transponder
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ATA5577M1330C-PP数据手册
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3
ATA5577M1330C-PPMY [DATASHEET]
9333B–RFID–05/14
2. General
The transponder consists of a plastic brick which accommodates the following components:
● Atmel
®
ATA5577M1330C Read/Write IDIC
®
● Coil with Ferrite Core
Note: The antenna is implemented as a tuned inductor
2.1 Transponder Antenna
The antenna consists of a coil and an on-chip capacitor of Atmel ATA5577M1330C 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.
2.2 Atmel ATA5577M1-PP Transponder Operation
The Atmel read/write IDIC ATA5577M1330C is part of the Atmel transponder ATA5577M1330C-PPMY. The data is
transmitted bi-directionally between the base station and the transponder. The transponder receives power via a single coil
from the RF signal generated by the base station. The single coil is connected to the chip and also serves as the IC’s bi-
directional communication interface.
Data is transmitted by modulating the amplitude of the RF signal. The register contents are read by damping the coil voltage
using an internal load. Writing into registers occurs by interrupting the RF field in a specific way. The Atmel
ATA5577M1330C-PP transponder operates at a nominal frequency of 125kHz. There are varying bit rates and encoding
schemes. The on-chip 363-bit EEPROM (11 blocks with 33 bits each) can be read and written block-wise from a base station
(reader). The blocks can be protected against overwriting by using lock bits. Two blocks contain Atmel’s production
information and form a unique ID numbering system. Another block may contain a password to prevent unauthorized writing.
Two blocks are reserved for setting the IC's operating modes. See the Atmel ATA5577C datasheet for more detailed
information about Atmel ATA5577M1330C operating modes.
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