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I2C(内部集成电路,InterIC,ICTOIC)总线是PhilipsSemiconductors在20世纪80年代中期开发的,最初用于音频和视频目的。将I2C扩展为系统管理总线SMBus后可用于电源管理及CPU
The I2C (Inter-Integrated Circuit, Inter IC, ICTOIC) bus was developed by Philips Semiconductors in the mid-1980s and initially used for audio and video purposes. Expansion of I2C to SMBus can be used for power management and CPU