Description:The R8C/33M Group is supported only for customers who have already adopted these products. The RL78/G1F Group is recommended for new designsThe R8C/33M Group of single-chip MCUs incorporates the R8C CPU core, employing sophisticated instructions for a high level of efficiency. With 1Mb of address space, and it is capable of executing instructions at high speed. In addition, the CPU core boasts a multiplier for high-speed operation processing.Power consumption is low, and the supported operating modes allow
Renesas recommends using a POR circuit with a voltage detector and a capacitor to ensure a stable power-on reset. A typical circuit consists of a 1 kΩ resistor, a 10 μF capacitor, and a voltage detector such as the NCP302 or NCP303.
To implement a reliable WDT reset, ensure that the WDT is enabled and configured correctly in the software. Also, use a external reset circuit with a capacitor and a resistor to ensure a clean reset signal. Additionally, consider using a separate power supply for the WDT to prevent it from being affected by power glitches.
The maximum clock frequency for the R5F21336MNFP#50 is 32 MHz, but it can be overclocked up to 40 MHz with careful consideration of power consumption and thermal management. However, overclocking may void the warranty and is not recommended for production use.
To optimize power consumption, use the low-power modes (e.g., sleep, stop, and deep sleep) provided by the microcontroller. Also, consider using a low-power oscillator, reducing the clock frequency, and minimizing the use of peripherals when not necessary. Additionally, use power gating and clock gating to reduce power consumption in idle modes.
When designing a PCB with the R5F21336MNFP#50, consider using a 4-layer board with a solid ground plane to reduce noise and EMI. Keep the power supply lines short and use decoupling capacitors to reduce noise. Also, ensure that the clock signal lines are short and well-shielded to prevent jitter and noise.
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R5F21336MNFP#50 Overview
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