R5F10DMFCLFB#12G Automotive Microcontroller Specifications and Applications


R5F10DMFCLFB#12G is a 16-bit automotive microcontroller from the Renesas RL78/D1A family. It is designed for automotive low-end instrument clusters and embedded control systems that require integrated communication, timing, display, and control functions.

The MCU combines a 16-bit RL78-S2 CPU with 96KB of program Flash, 8KB of data Flash, and 6KB of RAM. It also integrates CAN and LIN communication interfaces, multiple serial interfaces, PWM outputs, timers, an RTC, and a segment LCD controller.

The device is supplied in an 80-pin LFQFP package measuring 12 mm × 12 mm with a 0.5 mm pin pitch.

R5F10DMFCLFB#12G Memory

R5F10DMFCLFB#12G provides 96KB of program Flash memory for application firmware and 8KB of data Flash for non-volatile application data.

The 6KB internal RAM provides working memory for variables, communication buffers, control algorithms, and other runtime operations.

The combination of program Flash, data Flash, and RAM is suitable for embedded automotive controllers where a compact MCU needs to manage both control functions and vehicle communication.

R5F10DMFCLFB#12G CPU Performance

The device uses the RL78 architecture with a maximum operating frequency of 24MHz. The 16-bit CPU is designed for low-power embedded control applications and provides the processing capability required by automotive instrument and control functions.

The MCU also includes an on-chip oscillator and a 32.768kHz sub-clock option for timing and RTC-related functions.

R5F10DMFCLFB#12G Operating Voltage

R5F10DMFCLFB#12G operates from a supply voltage range of 2.7V to 5.5V.

The relatively wide supply range makes the MCU suitable for automotive electronic systems where supply conditions can differ from conventional 3.3V embedded platforms.

Designers should still consider the complete vehicle power architecture and provide appropriate voltage regulation, filtering, decoupling, and protection around the MCU power supply.

R5F10DMFCLFB#12G Communication Interfaces

The MCU integrates several communication interfaces for automotive embedded systems. It provides one CAN channel and two LIN channels for vehicle network communication.

It also includes two SPI channels and one I²C interface for communication with sensors, displays, memory devices, drivers, and other peripherals.

The combination of CAN and LIN interfaces makes R5F10DMFCLFB#12G particularly suitable for automotive control units and instrument-related applications that need to communicate with other vehicle electronic systems.

R5F10DMFCLFB#12G LCD Controller

One of the important features of the RL78/D1A family is its integrated segment LCD controller. R5F10DMFCLFB#12G supports up to 48 LCD segments according to the device specifications.

This allows the MCU to directly control an LCD display without requiring a separate external LCD controller for suitable applications.

The integrated display function can reduce PCB size, component count, and system complexity in automotive instrument and indicator designs.

R5F10DMFCLFB#12G Timers and PWM

R5F10DMFCLFB#12G provides multiple 16-bit timers and up to 21 PWM outputs. These resources can be used for motor control, actuator control, indicator control, timing generation, and other embedded functions.

The RL78/D1A family also incorporates functions designed for instrument cluster applications, including stepper motor control and sound generation.

These integrated peripherals allow a single MCU to handle several control tasks that might otherwise require additional external devices.

R5F10DMFCLFB#12G ADC

The device includes an 8-channel 10-bit analog-to-digital converter. The ADC can be used to monitor analog signals from sensors, switches, voltage monitoring circuits, and other automotive electronic subsystems.

For applications requiring analog measurement, engineers should evaluate ADC resolution, input range, reference configuration, conversion timing, and PCB noise conditions as part of the overall design.

R5F10DMFCLFB#12G Automotive Applications

R5F10DMFCLFB#12G is designed for automotive applications, particularly low-end instrument clusters.

Typical applications can include dashboard displays, vehicle meters, indicator panels, body electronics, automotive control modules, warning indicators, and embedded control systems that require CAN or LIN communication.

Its integrated LCD controller, communication peripherals, timers, PWM outputs, and analog inputs allow multiple functions to be implemented within one automotive MCU.

R5F10DMFCLFB#12G Temperature Range

R5F10DMFCLFB#12G is specified for an ambient operating temperature range of -40°C to +105°C.

This temperature range is intended for automotive electronic environments where the MCU may experience substantial temperature variation.

Thermal performance should still be evaluated according to the actual PCB design, enclosure, airflow, nearby heat sources, and vehicle installation location.

R5F10DMFCLFB#12G Package

The device uses an 80-pin LFQFP package with dimensions of approximately 12 mm × 12 mm × 1.6 mm and a 0.5 mm lead pitch.

The relatively high pin count provides connections for communication interfaces, LCD control, timers, PWM outputs, analog inputs, and general-purpose I/O while maintaining a conventional surface-mount package.

PCB designers should use the manufacturer's recommended land pattern and carefully control soldering and assembly conditions because the 0.5 mm pitch requires accurate PCB fabrication and placement.

R5F10DMFCLFB#12G I/O and Peripheral Integration

R5F10DMFCLFB#12G provides 68 I/O ports. The integrated peripherals allow many of these pins to be configured for communication, timer, PWM, analog, LCD, and other functions.

The MCU also includes two DMA channels, a watchdog timer, power-on reset, low-voltage detection, RTC, and external interrupt functions.

These integrated features can reduce the need for external control logic and help simplify automotive embedded system architecture.

R5F10DMFCLFB#12G Sourcing

When sourcing R5F10DMFCLFB#12G, buyers should verify the complete Renesas part number because the RL78/D1A family contains multiple memory, package, and ordering variants.

The exact R5F10DMFCLFB#12G version uses an 80-pin LFQFP package and is specified for the automotive RL78/D1A platform. Procurement specifications should include the complete part number, required quantity, packaging format, production requirements, and target delivery schedule.

For automotive production, buyers should also confirm the required quality and traceability documentation before approving inventory for production use.

R5F10DMFCLFB#12G for Automotive Instrument Clusters

R5F10DMFCLFB#12G integrates the core functions required for many low-end automotive instrument and control applications. Its 16-bit RL78 CPU, 96KB program Flash, 8KB data Flash, 6KB RAM, CAN and LIN interfaces, segment LCD controller, PWM outputs, timers, ADC, and automotive temperature range provide a broad set of resources in one MCU.

For new designs, engineers should verify memory requirements, communication interfaces, LCD segment requirements, I/O allocation, ADC channels, PWM resources, operating voltage, temperature range, and package dimensions before selecting R5F10DMFCLFB#12G for production.


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