page_title: 78K
hierarchical_section_title: 78K
caption_attribution_description: English: NEC Do It, low cost evaluatuionboard for 78K0S family of 8 bit microcontroller Deutsch: NEC Do It, preiswertes Demoboard für die 8 Bit Microcontroller der 78K0S-Familie
context_page_description: 78K is the trademark name of 16- and 8-bit microcontroller family
  manufactured by Renesas Electronics, originally developed by NEC
  started in 1986.
  The basis of 78K Family is an accumulator-based register-bank CISC architecture.
  78K is a single-chip microcontroller, which usually integrates; program ROM, data RAM, serial interfaces, timers, I/O ports, an A/D converter, an interrupt controller, and a CPU core, on one die.
  Its application area is mainly simple mechanical system controls and man-machine interfaces.
  Regarding software development tools, C compilers and macro-assemblers are available.
  As for development tool hardware, full probing-pod type and debug port type in-circuit emulators,
  and flash ROM programmers
  are available.
  Historically, the family has 11 series with 9 instruction set architectures. As of 2018, 3 instruction set architectures, those are 8-bit 78K0, 8-bit 78K0S, and 16-/8-bit 78K0R, are still promoted for customers' new designs.
  But in most of cases, migration to RL78 Family,
  which is a successor of 78K0R and almost binary level compatible with 78K0R,
  is recommended.
context_section_description: 78K is the trademark name of 16- and 8-bit microcontroller family
  manufactured by Renesas Electronics, originally developed  by NEC
  started in 1986.
  The basis of 78K Family is an accumulator-based register-bank CISC architecture.
  78K is a single-chip microcontroller, which usually integrates; program ROM, data RAM, serial interfaces, timers,  I/O ports, an A/D converter, an interrupt controller, and a CPU core, on one die.
  Its application area is mainly simple mechanical system controls and man-machine interfaces.
  Regarding software development tools, C compilers and macro-assemblers are available.
  As for development tool hardware, full probing-pod type and debug port type in-circuit emulators,
  and flash ROM programmers
  are available.
  Historically, the family has 11 series with 9 instruction set architectures. As of 2018, 3 instruction set architectures, those are 8-bit 78K0, 8-bit 78K0S, and 16-/8-bit 78K0R, are still promoted for customers' new designs.
  But in most of cases, migration to RL78 Family,
  which is a successor of 78K0R and almost binary level compatible with 78K0R,
  is recommended.
caption: 78K0S/KA1+ Do It board
exif: {}