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Worldwide 
Europe
78K0R/KE3 Microcontrollers
Features
- Power supply voltage: VDD = 1.8 to 5.5 V
- Max. frequency 20 MHz
- ROM capacities 64 KB to 256 KB flash memory
- RAM capacities 4 KB to 12 KB
- 64 pins FPBGA or QFP package
- Minimum instruction execution time can be changed from high speed (0.05 µs: @ 20 MHz operation with highspeed system clock) to ultra low-speed (61 µs: @ 32.768 kHz operation with subsystem clock)
- General-purpose register: 8 bits × 32 registers (8 bits × 8 registers × 4 banks)
- On-chip single-power-supply flash memory (with prohibition of chip erase/block erase/writing function)
- Self-programming (with boot swap function/flash shield window function)
- On-chip debug function
- On-chip power-on-clear (POC) circuit and low-voltage detector (LVI)
- On-chip watchdog timer (operable with the on-chip internal low-speed oscillation clock)
- On-chip multiplier (16 bits × 16 bits)
- On-chip key interrupt function
- On-chip clock output/buzzer output controller
- On-chip BCD adjustment
- I/O ports: 55 (N-ch open drain: 4)
- Timer: 10 channels
- 16-bit timer: 8 channels
- Watchdog timer: 1 channel
- Real-time counter: 1 channel - Serial interface
- UART/CSI: 1 channel
- UART/CSI/simplified I2C: 1 channel
- UART (LIN-bus supported): 1 channel
- I2C: 1 channel - 10-bit resolution A/D converter (AVREF = 2.3 to 5.5 V): 8 channels
- Operating ambient temperature: TA = -40 to +85°C
