DESCRIPTION
The 3806 group is 8-bit microcomputer based on the 740 family core technology.
The 3806 group is designed for controlling systems that require analog signal processing and include two serial I/O functions, A-D converters, and D-A converters.
The various microcomputers in the 3806 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 3806 group, refer to the section on group expansion.

FEATURES
• Basic machine-language instructions ....................................... 71
• Memory size
   ROM ................................................................ 12 K to 48 K bytes
   RAM ................................................................. 384 to 1024 bytes
• Programmable input/output ports ............................................. 72
• Interrupts .................................................. 16 sources, 16 vectors
• Timers ............................................................................. 8 bit ✕ 4
• Serial I/O1 .................... 8-bit ✕ 1 (UART or Clock-synchronized)
• Serial I/O2 .................................... 8-bit ✕ 1 (Clock-synchronized)
• A-D converter .................................................. 8-bit ✕ 8 channels
• D-A converter .................................................. 8-bit ✕ 2 channels
• Clock generating circuit ....................... Internal feedback resistor
   (connect to external ceramic resonator or quartz-crystal)
• Memory expansion possible

APPLICATIONS
   Office automation, VCRs, tuners, musical instruments, cameras, air conditioners, etc.