MS51FB9AE Overview
The MS51 is an embedded flash type, 8-bit high performance 1T 8051-based microcontroller. The instruction set is fully patible with the standard 80C51 and performance enhanced. The MS51FB9AE / MS51XB9AE / MS51XB9BE contains an 16K Bytes of main Flash called APROM, in which the contents of User Code resides.