/Series 155
M55155/30XJ08 is a microcontroller from the Concord/Series 155 family from Motorola. It has a 16-bit data bus and a 24-bit address bus and a clock speed of 8 MHz. It has 8K bytes of program memory, 4K bytes of RAM, and an internal 32-bit stack pointer. It is compatible with the standard microcontroller instruction set, and has an on-board analog-to-digital converter, serial port, and parallel port. The M55155/30XJ08 also features 256 bytes of nonvolatile RAM, battery-backed real-time clock/calendar, LCD controller, and two additional timers.