Presenting sbc11/51 a general purpose, low-cost and highly expandable micro-controller card based on the 8051 based single-chip flash micro-controller. This micro-controller features 12/64 kilobytes flash memory, two 16 bit timer/counter, programmabl uart serial channel, isp/iap capability, 32 general purpose i/o pins. 768-byte ram + 32 kb ram [optional], rs232 serial port, in-circuit programming of the micro-controller through the serial port, expansion frc connector, expansion bus interface to low-cost peripheral board such as 8255 ppi controller, 8 channel adc, 8 channel dac, 8 input/output relay card, on board lcd/keypad connector, add-on 2 channel ports, this card replaces existing plcs in machinery and processes and can also be used for evaluation purpose. Programming on to this board is easy using basic/c++/plc ladder.
