UC Micro Systems offers System Programmable Controller 5V DC Operating Voltage. UC Micro Systems manufactures Memories, Amp; Microcontrollers, Universal IC Programmers and Testers. The System Programmable Controller 5V DC Operating Voltage has Plug and play functionality for very fast prototype development. The System Programmable Controller has no need of any external hardware for programming. The System Programmable Controller 5V DC Operating Voltage can be used in place of any 40-pin 8051 Microcontroller. The System Programmable Controller is easy to use and install.