The Easy8051 v6 is compatible with 14-, 16-, 20-, 28-, 40-pin PLCC44 and PLCC32 MCUs. It comes with an AT89S8253. The board has a USB 2.0 programmer and many peripherals such as COG, port expander, MENU and 4×4 keypads etc.
The BIG8051 development system supports 100-pin Silabs 8051 microcontrollers. It comes with the c8051f040 microcontroller. The system is delivered with a Silabs USB 2.0 programmer and many peripheral modules such as Serial Ethernet, DAC, ADC etc.