M-Bus远程抄表系统（symphonicmbus），是欧洲标准的2线的二总线，主要用于消耗测量仪器诸如热表和水表系列。
PCA9519 是一个4 通道的I2C 总线/SMBus 中继器，可以实现将低电压两线串行总线接口的处理器与标准的I2C 总线或SMBus I/O 相连。该中继器在电平转换中保持I2C
The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Ou
资料->【B】电子技术->【B5】通信技术->【1】通信协议->【USB、OTG】->Universal Serial Bus Device Class Specification for Device Firmware Upgrade.p...
资料->【B】电子技术->【B4】电子专题->【0】电源技术->vicor公司电源设计资料->VICOR的MMM系列BUS-PR引脚.pdf
Universal Serial Bus Device Class Specification for Device Firmware Upgrade This document
Universal Serial Bus Device Class Definition for MIDI Devices 1 IntroductionFollowing
Under contract with Signetics, Mr. Thomas J. Chaney of WashingtonUniversity, St. Louis tested a
Universal Serial Bus Device Class Definition for Printing Devices The Universal Serial Bu