The RL78/G15 packs 4-8KB of code flash memory in package sizes ranging from 8 to 20 pins, with the smallest 8-pin device measuring 3 x 3 mm.

These features are designed to keep system size small and reduce the cost of end systems, such as industrial, consumer, sensor control, lighting, and inverter applications.

In addition, the maximum operating ambient temperature of 125°C facilitates optimal thermal design, covering a wide temperature range and allowing the MCU to be used near heat-generating components such as inverter motors.


Key Features of the RL78/G15

  • RL78 16-bit CPU core operating at 16MHz
  • Wide operating ambient temperature range of -40°C to 125°C
  • Available in 8-pin to 20-pin packages, with the smallest 3 mm x 3mm WDFN package
  • All pins can be used for general-purpose I/O, except VDD and VSS power supply pins
  • Up to 8 KB of code flash memory, 1 KB of data flash, and 1 KB of SRAM
  • Supports operating voltages from 2.4V to 5.5V
  • Multiple serial interfaces supported: CSI, UART, Simple I2C, and multi-master I2C
  • High-precision oscillator (±1.0%)
  • Built-in comparator