Last year, Jiangsu Yuheng Co., Ltd introduced a new microcontroller ... ranging from the CH551 in an SOP-16 package to the CH559 in an LQFP48 package, with more features available as the chips ...
It’s a virtual machine for AVR microcontrollers. The package has a relatively small overhead, taking up about 3kB of program memory. The VM can execute 74,000 instructions per second ...