The R5F100SKDFB#50 from Renesas Electronics Corporation is a sophisticated 16-bit microcontroller unit (MCU) belonging to the RL78/G13 series, designed to address the demanding requirements of embedded system applications requiring robust processing capabilities, extensive memory resources, and versatile connectivity options. This integrated circuit features an RL78 core processor operating at 32MHz, providing efficient computational performance for real-time control and data processing tasks while maintaining low power consumption characteristics essential for battery-operated and energy-conscious applications.
At the heart of this microcontroller lies a substantial 384KB flash program memory (384K x 8 configuration) that accommodates complex firmware and application code, complemented by 24KB of RAM (24K x 8) for dynamic data handling and an 8KB EEPROM for non-volatile data storage, making it particularly suitable for applications requiring parameter retention and configuration data preservation across power cycles. The device is housed in a compact 128-LFQFP package measuring 14x20mm with surface mount technology, offering an impressive 110 general-purpose I/O pins that provide exceptional flexibility for interfacing with external sensors, actuators, displays, and communication modules in space-constrained designs.
The microcontroller addresses critical design challenges including multi-protocol communication requirements through its comprehensive connectivity suite featuring CSI (Clock Synchronous Interface), I²C, LINbus, and UART/USART interfaces, enabling seamless integration into automotive, industrial control, and consumer electronics systems. Its rich peripheral set includes DMA for efficient data transfer without CPU intervention, PWM modules for motor control and LED dimming applications, a watchdog timer (WDT) for system reliability, low voltage detection (LVD), and power-on reset (POR) circuits that ensure stable operation across varying power conditions. The integrated 26-channel analog-to-digital converter with selectable 8-bit or 10-bit resolution provides precise analog signal acquisition for sensor interfacing and measurement applications.
Operating across an exceptionally wide voltage range of 1.6V to 5.5V and temperature range of -40°C to 85°C, this microcontroller demonstrates remarkable environmental adaptability suitable for automotive, industrial automation, smart metering, home appliances, building automation, medical devices, and portable instrumentation applications. The device's internal oscillator eliminates the need for external crystal components, reducing bill-of-materials costs and board space requirements while simplifying design implementation. Its RoHS3 compliance ensures environmental responsibility and regulatory adherence for global market deployment, with availability in tape and reel packaging facilitating automated assembly processes.
Equivalent and alternative models within the RL78/G13 family include variants with different memory configurations such as the R5F100SL (512KB flash), R5F100SJ (256KB flash), and R5F100SG (192KB flash), while pin-compatible alternatives in different package options include 100-pin LQFP, 80-pin LQFP, and 64-pin LQFP versions for design scalability. Cross-family alternatives include the RL78/G14 series offering enhanced peripheral features and the RL78/G1A series optimized for LCD applications, while competitive equivalents from other manufacturers include the Microchip PIC24F series, STMicroelectronics STM32F0 series, and Texas Instruments MSP430 family, though specific feature-for-feature matching requires careful comparison of memory, peripherals, and package configurations to ensure application requirements are fully met.
R5F100SKDFB#50 (1)
R5F100SKDFB#50 Key Technical Attributes
RL78 Core, 16-Bit Architecture, 384KB Flash, 24KB RAM, 8KB EEPROM
128-LFQFP Package, 14x20mm Size, Surface Mount, -40°C ~ 85°C, 1.6V ~ 5.5V
110 I/O Pins, 32MHz Speed, A/D 26-channels, UART/USART, DMA, PWM, LVD, POR
R5F100SKDFB#50 Packing Size
The R5F100SKDFB#50 is encapsulated in a 128-pin Low-profile Quad Flat Package (LFQFP), measuring 14x20 mm, which supports high-density mounting on PCBs. This leaded surface-mount package is widely adopted for its reliability, offering excellent heat dissipation and ease of automated assembly. The 128-LFQFP package features a fine-pitch lead configuration with robust mechanical stability and is ideal for high-pin-count applications that demand optimized footprint without sacrificing electrical or thermal performance.
R5F100SKDFB#50 Application
Renesas R5F100SKDFB#50 microcontroller is designed for a wide spectrum of applications in the fields of industrial control, consumer electronics, automotive electronics, healthcare, and home appliances. Its versatile peripheral set and robust processing capabilities make it especially suitable for advanced motor controls, user interfaces, intelligent sensors, communication gateways, building automation, smart meters, and low-power embedded systems.
R5F100SKDFB#50 Features
This microcontroller integrates a high-performance RL78 core running at up to 32MHz, supporting both high efficiency and strong computational processing in a power-conscious 16-bit architecture. It includes 384KB of on-chip flash memory capable of in-system reprogramming, ensuring scalable code storage and reliability. SRAM of 24KB offers responsive data access for real-time operations. Alongside, 8KB EEPROM enables retention of critical user or configuration data without battery backup.
Peripheral functionalities encompass advanced modules such as Direct Memory Access (DMA) for minimal CPU intervention in data transfers, multiple low-voltage detection (LVD) circuits for safe operation, power-on reset (POR) for reliable startup, programmable pulse width modulation (PWM) outputs, and a hardware watchdog timer (WDT) for system safety. With up to 110 configurable general-purpose I/Os, it allows seamless integration of external devices and complex signaling.
Communication interfaces include multi-channel UART/USART, multi-functional serial interfaces (CSI, IC), and LINbus, which collectively provide extensive connectivity and protocol support. The device offers embedded analog-to-digital converters (A/D) with 26 channels at 8 or 10 bits resolution, facilitating high-accuracy sensor interfacing. The microcontroller operates from 1.6V to 5.5V supply voltage, making it suitable for both battery-powered and regulated applications. An integrated internal oscillator offers clock generation without external components, reducing overall BOM and board space.
R5F100SKDFB#50 Quality and Safety Features
Compliant with the latest RoHS 3 environmental standards, the device ensures hazardous substance-free manufacturing and supports eco-friendly electronic designs. Its wide operating temperature range (-40°C to 85°C) and robust LFQFP packaging make it reliable for industrial and automotive grade robustness. Integrated safety functions such as LVD, POR, and WDT provide comprehensive protection against voltage dips, power anomalies, and system lock-up scenarios, reinforcing the reliability of critical embedded systems.
R5F100SKDFB#50 Compatibility
The R5F100SKDFB#50 is a proud member of the well-regarded RL78/G13 series, enabling code reuse and pin-to-pin compatibility with other family members whenever possible. It is designed with scalability and flexible upgrades in mind, making it suitable for both legacy system expansion and new product development. Standard communication peripherals, broad voltage range, and extensive I/O multiplexing ensure it can be easily adopted across a multitude of industrial and consumer platforms.
R5F100SKDFB#50 Datasheet PDF
For the most comprehensive technical details, timing diagrams, and usage guidelines, we maintain the most authoritative and up-to-date datasheet for the R5F100SKDFB#50 microcontroller directly on this page. Customers are highly encouraged to download the official datasheet now for in-depth design insights and to ensure optimal integration within their applications.
Quality Distributor
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