R5F109LCKFB#V0

Microcontrollers Overview

The R5F109LCKFB#V0 is a 16-bit microcontroller from the Renesas RL78/F12 family, designed for automotive applications. It features an RL78 core with a maximum clock frequency of 32 MHz. The device includes 32 kB of program memory and 2 kB of data RAM. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an extended temperature range from -40°C to +125°C. The unit is housed in a 64-pin LFQFP package and holds AEC-Q100 qualification.

Microcontrollers Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Extended operating temperature range up to 125°C
• Integrated 10-bit analog-to-digital converter
• Supports CSI, I2C, and UART communication interfaces

Microcontrollers Applications

• Automotive body electronics control modules
• Instrument cluster processing units
• Door control systems
• Seat adjustment controllers

Microcontrollers Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as automotive MCUs may undergo obsolescence notices. Ensure ESD handling protocols are followed during storage and assembly to maintain device integrity.

Microcontrollers Selection Notes

Select this model when automotive certification and high-temperature operation are mandatory requirements. Compare pin compatibility with existing designs if upgrading from previous RL78 revisions. Evaluate peripheral availability against application needs, specifically checking ADC channel counts and I/O configurations. Consider power consumption profiles relative to system battery requirements.

Microcontrollers Part Context

This component belongs to the RL78/F12 series, which targets cost-sensitive automotive markets. The series emphasizes low power consumption while maintaining robust performance for general MCU tasks. It shares architectural similarities with other RL78 devices but offers specific memory and peripheral combinations optimized for body control applications.

Microcontrollers Replacement Considerations

Consult official Renesas cross-reference tools for verified substitutes. Direct replacements must match the RL78/F12 architecture and LFQFP-64 package. Verify that any alternative part maintains AEC-Q100 compliance and identical thermal specifications.