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Description

The 3807 group is a 8-bit microcomputer based on the 740 family core technology. The 3807 group has two serial I/Os, an A-D converter, a D-A converter, a real time output port function, a watchdog timer, and an analog comparator, which are available for a system controller which controls motors of office equipment and household appliances.

The various microcomputers in the 3807 group include variations of internal memory size and packaging. For details, refer to the section on part numbering. For details on availability of microcomputers in the 3807 group, refer to the section on group expansion.

Features

• Basic machine-language instructions  : 71

• The minimum instruction execution time : 0.5 us (at 8 MHz oscillation frequency)

• Memory size 

  (1) ROM : 8 to 60 K bytes

  (2) RAM : 384 to 2048 bytes

• Programmable input/output ports  : 68

• Software pull-up resistors (Ports P0 to P2)  : 24

• Input ports (Ports P63 and P64)  : 2

• Interrupts  20 sources, 16 vectors

• Timers X, Y  : 16-bit x 2

• Timers A, B (for real time output port function)  : 16-bit x 2

• Timers 1 - 3 : 8-bit x 3