ST M24LR64-R温度数据无线采集解决方案

ST公司的 M24LR64-R是无线存储器，具有口令保护的64Kb EEPROM以及400kHz I2C串行总线和13.56MHz ISO 15693 RF协议的 双接口的64Kb EEPROM，可实现智能手机的近场通信（NFC）.单电源1.8V-5.5V工作，64kb EEPROM分成I2C模式的8192B和RF模式的2048x32b，无接触接口和ISO 15693与ISO 18000-3 mode 1兼容，载波频率13.56 MHz ±7k Hz，广泛用于工业和消费类电子产品.本文介绍了M24LR64-R 主要特性,功能方框图,数据采集器中STM8L101K3/M24LR64-R/STTS75的通信方框图,电路图和温度数据采集器元件表.

Developing your M24LR64-R datalogger application for temperature acquisition

The M24LR64-R device is a dual-interface, electrically erasable programmable memory(EEPROM). It features an I2C interface and can be operated from a VCC power supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR64-R is organized as 8192 × 8 bits in the I2C mode and as 2048 × 32 bits in the ISO 15693 and ISO 18000-3 mode 1 RF mode.

I2C uses a two-wire serial interface, comprising a bidirectional data line and a clock line. The devices carry a built-in 4-bit device type identifier code (1010) in accordance with the I2C bus definition.
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