[NEC]

FEATUREs
Minimum instruction execution time can be changed from high speed (0.1 µs: @ 20 MHz operation with highspeed system clock) to ultra low-speed (122 µs: @ 32.768 kHz operation with subsystem clock)
General-purpose register: 8 bits ×32 registers (8 bits ×8 registers ×4 banks) 
Buffer RAM: 32 bytes (can be used for transfer inCSI with automatic transmission/reception function)
On-chip single-power-supply flash memory
Self-programming (with boot swap function)
On-chip debug function (µPD78F0547D only)^Note
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/divider (16 bits ×16 bits, 32 bits / 16 bits)
On-chip key interrupt function
On-chip clock output/buzzer output controller
I/O ports: 71 (N-ch open drain: 4)
Timer: 8 channels
  • 16-bit timer/event counter: 2 channels
  • 8-bit timer/event counter:  2 channels
  • 8-bit timer:  2 channels
  • Watch timer:  1 channel
  • Watchdog timer:  1 channel 
Serial interface: 5 channels
  • UART (LIN (Local Interconnect Network)-bus supported:   1 channel
  • CSI/UART^Note                                                                                :   1 channel
  • CSI:  1 channel
  • CSI with automatic transmission/reception function:        1 channel
  • I2C:  1 channel
10-bit resolution A/D converter (AVREF= 2.3 to 5.5 V): 8 channels
Power supply voltage: VDD = 1.8 to 5.5 V
Operating ambienttemperature:
  •TA = −40 to +85°C:  (T), (S), (R) products
  •TA = −40 to +125°C: (T2) product

APPLICATIONs
Automotive equipment ((A), (A1), (A2) grade products, under development)
  • System control for body electricals (powerwindows, keyless entry reception, etc.)
  • Sub-microcontrollers for control
Car audio
AV equipment, home audio
PC peripheral equipment (keyboards, etc.)
Household electrical appliances
  •Air conditioners
  • Microwave ovens, electric rice cookers
Industrial equipment
  •Pumps
  •Vending machines
  • FA (Factory Automation)