The R8C/L3xM groups include a high-speed on-chip oscillator with +/- 1% typical accuracy at room temperature and +/-1.5% guaranteed accuracy in all temperature ranges, including aging variation after factory calibration. The high-speed on-chip oscillator supplies the 40MHz oscillation with 1/2, 1/3, 1/4, 1/5 1/6, 1/7, 1/8 or 1/9 clock division as clock sources to the CPU and also the on-chip peripheral functions. This allows the MCU to communicate with external components via serial interfaces without any other external resonators.
In addition to the accurate high-speed on-chip oscillator, the R8C/L3xM groups offer features that contribute to reduced overall system power consumption, based on the existing R8C/L3xA, R8C/L3xB and R8C/L3xC groups.
The key differences between the four groups are listed in the table below. A variety of specifications is available with different pin counts and supported LCD sizes, allowing customers to choose the version that best matches their requirements.