描述 Description

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-directional data communication via this RF field. It includes power management that handles switching between the magnetic field and a battery power supply. To store permanent data like an identifier code and configuration data, the U3280M includes a 512-bit EEPROM with a serial interface.

特性 Features

? Contactless Power Supply and Communication Interface
? Up to 10 kbaud Data Rate (R/O)
? Power Management for Contactless and Battery Power Supply
? Frequency Range 100 kHz to 150 kHz
? 32 x 16-bit EEPROM
? Two-wire Serial Interface
? Shift Register Supported Bi-phase and Manchester Modulator Stage
? Reset I/O Line
? Field Clock Extractor
? Field and Gap Detection Output for Wake-up and Data Reception
? Field Modulator with Energy-saving Damping StageApplications
? Main Areas
?? – Access Control
?? – Telemetry
?? – Wireless Sensors
? Examples:
?? – Wireless Passive Access and Active Alarm Control for Protection of Valuables
?? – Contactless Position Sensors for Alignments of Machines
?? – Contactless Status Verification and/or Data Readout from Sensors?

簡介

U3280M屬于RF/IF射頻/中頻RFID的RFID射頻接入監(jiān)控IC。由制造生產(chǎn)的U3280MRFID，射頻接入，監(jiān)控 ICRFID 或射頻接入監(jiān)控 IC 是配置為射頻識(shí)別 (RFID) 讀取器、應(yīng)答器、無源接入/無源啟動(dòng)處理器和輪胎壓力監(jiān)測系統(tǒng) (TPMS) 的半導(dǎo)體器件。這些器件的設(shè)計(jì)符合 EPC、ISO、NFC、MiFARE 和 FeliCa 等特定 RFID 標(biāo)準(zhǔn)，并通過 I2C、SPI、UART、USB、PWM、RS232、RS422、RS485 及其他接口進(jìn)行通信。