Description
CXP5080 is a CMOS 4-bit single chip microcomputer of piggyback/evaluator combined type which has been developed for functional evaluation of the CXP5084/5086.

Features
• Instruction cycle 3.8µs/4.19MHz (CXP5080) 1.9µs/4.19MHz (CXP5080H)
• ROM capacity Maximum 8K bytes (EPROM 27C64, LCC/DIP type 27C64)
• RAM capacity 400 × 4 bits (Including stack, display area)
• 32 general purpose I/O ports
• 16 large current output ports
• LCD controller/driver (Enables to direct drive)
    — Enables to specify the segment output of 24, 20 and 16 optionally
    — Enables to select program of the duty, 1/2, 1/3 and 1/4
    — 1/3 bias
• 2 external interruption input pins
• 8-bit timer, 8-bit timer/event counter and 18-bit time base timer, independently controlled
• Arithmetic and logical operations possible between the entire RAM area, l/O area and the accumulator by means of memory mapped I/O
• Reference to the entire ROM area is possible with the table look-up instruction
• 2 kinds of power down modes of sleep and stop
• Power on reset circuit (mask option)
• The oscillation circuit may be optionally specified as the crystal oscillation type or the CR oscillation type
• 64-pin ceramic SDIP/QFP