R5F21336CDFP#50

Microcontrollers Overview

The R5F21336CDFP#50 is a 16-bit microcontroller from the Renesas R8C/3x series, utilizing the R8C CPU core. It features 32 kB of ROM program memory and 4 kB of RAM. The device operates at a maximum clock frequency of 20 MHz with a supply voltage range of 1.8 V to 5.5 V. It is housed in a 32-pin LQFP package and supports interfaces including I2C, LINbus, SIO, SSU, and UART/USART.

Microcontrollers Feature Summary

• Integrates a touch sensor control unit for detecting floating capacitance of electrostatic capacitive touch electrodes.
• Includes on-chip data flash with background operation (BGO) function for efficient data storage management.
• Features a multiplier for high-speed arithmetic processing within the R8C CPU core architecture.

Microcontrollers Applications

• Electronic household appliances
• Office equipment
• Audio equipment
• Consumer equipment

Microcontrollers Procurement Notes

Verify the specific suffix #50 against official Renesas documentation to confirm exact manufacturing lot or revision details. Ensure compatibility with existing PCB footprints for the 32-pin LQFP package. Confirm that the 20 MHz maximum speed meets system timing requirements. Validate power supply constraints within the 1.8 V to 5.5 V range for the target application environment.

Microcontrollers Selection Notes

Select this component when a 16-bit R8C core with integrated touch sensing capabilities is required. It is suitable for applications needing moderate program memory and multiple serial communication interfaces. Consider the 32-pin LQFP package size for space-constrained designs. Verify that the 20 MHz operating speed aligns with real-time processing demands.

Microcontrollers Part Context

This part belongs to the R8C/3x series of single-chip microcontrollers designed for efficiency and low power consumption. The series maximizes EMI/EMS performance and integrates multifunction timers and serial interfaces to reduce system component count. The R8C CPU core provides sophisticated instructions and a large address space for high-speed execution.

Microcontrollers Replacement Considerations

Consult the R8C/3x Group datasheet for pin-compatible alternatives within the same family. Verify functional equivalence regarding memory size, peripheral availability, and package dimensions before substitution.