In upcoming ubiquitous electronics environment, abundant electronics systems will be deployed in a sensor, car, robot, home, town, and even in a farm. The ubiquitous electronics support our comfortable and safe life, and thus require low-power feature. High-performance silicon VLSIs such as microprocessors will still be the mainstream also in the future ubiquitous electronics environment, as the modern life is supported by ldquothe micro electronicsrdquo. That is, cost reduction and power saving by downsizing will be keys. However, the ubiquitous electronics are not achieved only by the micro electronics. Another technology such as organic electronics has been recently called ldquomacro electronicsrdquo, and will complement the silicon system. The macro electronics realize a new system as a fusion of the heterogeneous technologies. In this paper, we introduce some low-power control techniques for silicon and organic electronics. In particular, we focus on circuits with array structures like silicon static random access memory and organic sensors.