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Product Overview:

The 78K0/Fx2 is an 8-bit microcontroller for automotive use with low power consumption.

Key Features:

Operating voltage: VDD = 1.8 to 5.5 V
Max. frequency: 20 MHz
ROM capacities: 32KB to 128 KB flash memory
RAM capacities: Internal High-Speed RAM 1 KB / Internal Expansion RAM 1 KB to 6 KB
44/48/64/80-pin plastic LQFP package
Minimum instruction execution time can be changed from high speed (0.2 μs: @ 10 MHz operation with highspeed system clock) to ultra low-speed (122 μs: @ 32.768 kHz operation with subsystem clock)
General-purpose register: 8 bits x 32 registers (8 bits x 8 registers x 4 banks)
On-chip single-power-supply flash memory
Self-programming (with boot swap function)
On-chip debug function
On-chip power-on-clear (POC) circuit and low-voltage detector (LVI)
Short startup is possible via the CPU default start using the on-chip internal high-speed oscillator
On-chip watchdog timer (operable with on-chip internal low-speed oscillator clock)
On-chip multiplier/divider
On-chip clock output/buzzer output controller
I/O ports:

  • 37 (N-ch open drain: 3) (μPD78F0881, 78F0882, 78F0883)
  • 41 (N-ch open drain: 4) (μPD78F0884, 78F0885, 78F0886)
  • 55 (N-ch open drain: 4) (78K0/FE2)
  • 71 (N-ch open drain: 4) (78K0/FF2)

Timer: 8/10 channels
Serial interface: 3/4 channels

  • UART (LIN (Local Interconnect Network)-bus supported): 1 channel
  • CSI/UART: 1 channel
  • CSI: 0/1 channel
  • CAN: 1 channel

10-bit resolution A/D converter: 8/9/12/16 channels
Operating ambient temperature: TA = -40 to +85°C, -40 to +125°C

Key Applications:

  • Car Body


Product Lineup:


Alliance Partner



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