Renesas R5F100LLAFB#X0
- Part No.:
- R5F100LLAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LLAFB#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100LLAFB#X0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 512 KB flash, 32 KB RAM RL78/G13 16-bit microcontroller with integrated RTC, 10-bit ADC (26 channels), UART/LIN, I²C, and CSI interfaces, operating from 1.6–5.5 V at -40°C to +85°C for industrial control and sensor node applications.
For engineers reviewing the R5F100LLAFB#X0 datasheet, R5F100LLAFB#X0 pinout, R5F100LLAFB#X0 application, or R5F100LLAFB#X0 equivalent, key selection criteria include ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), on-chip data flash (8 KB), self-programming capability, and support for background data flash rewriting during program execution.
Technical Context
The R5F100LLAFB#X0 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm/correction, and watchdog timer with dedicated low-speed oscillator.
It features dual power domains (VDD and EVDD), selectable voltage detector (LVD) levels (14 options), DMA controller (4 channels), 16×16/32÷32 multiplier/divider, and BCD correction circuit - all optimized for deterministic real-time response in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-code-footprint firmware. |
| Flash Memory | 512 KB code flash (1 KB block size); supports secure erase prohibition and boot swap for robust firmware updates. |
| Data Flash | 8 KB on-chip data flash with background operation (BGO); allows concurrent program execution and nonvolatile parameter storage. |
| RAM | 32 KB on-chip RAM; sufficient for real-time buffering, stack depth, and firmware data structures in industrial edge nodes. |
| ADC | 10-bit resolution, 26-channel SAR ADC with internal 1.45 V reference and temperature sensor; eliminates external precision references for sensor interfacing. |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE; enables battery-powered operation >10 years in periodic-sensing applications. |
| Operating Voltage | 1.6–5.5 V single supply; simplifies power design across diverse input sources including coin cells and 3.3/5 V rails. |
| Temperature Range | -40°C to +85°C (Industrial A-grade); qualified for deployment in HVAC, motor drives, and factory automation environments. |
Pinout & Package
64-pin LFQFP package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI clock / I²C clock | Shared hardware resource enabling flexible interface selection without additional GPIO overhead. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI input / UART receive / I²C data | Multi-function pin reduces PCB routing complexity and supports debug (TOOLRxD) and sensor bus (SDA00) simultaneously. |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Enables ratiometric sensing using external sensor bridges while providing precise ADC reference path. |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential analog measurements and programmable AVREF range for improved noise immunity. |
| P50/INTP0/TOOLRST | External interrupt 0 / debug reset | Combines system wake-up trigger and JTAG/SWD reset into one pin, minimizing debug footprint. |
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation under transient load conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP modes | Reduces average current to sub-μA levels in sleep states, extending battery life in wireless sensor nodes. |
| On-chip data flash with BGO | Enables firmware field updates and logging without halting real-time control tasks. |
| Real-time clock with calendar | Provides accurate timekeeping over 99 years with alarm and auto-correction, eliminating external RTC ICs. |
| Integrated LIN transceiver support | UART peripheral configured for LIN 2.2 protocol, reducing component count in automotive body electronics. |
| Hardware multiplier/divider | Accelerates PID loop calculations and signal processing in motor control and power conversion firmware. |
| On-chip temperature sensor | Delivers ±2°C accuracy for thermal monitoring without external sensors in fan control or power supply management. |
Applications
| Smart Thermostat Control | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Programmable HVAC thermostat with local display, temperature/humidity sensing, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, PID-based setpoint regulation, display refresh, and RF module handshaking. Use Value: Integrated 10-bit ADC (26 ch), RTC calendar, and ultra-low-power STOP mode enable multi-year battery operation with daily scheduling and event logging. | Use Scenario: Compact BLDC motor driver board with hall-effect feedback, current sensing, and fault protection. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, PWM generation, and overcurrent shutdown within strict timing windows. Use Value: 4-channel DMA, hardware multiplier, and 32 KB RAM allow deterministic 20 kHz PWM update rates with minimal CPU load and fast fault response. |
| Energy Meter Data Logger | Factory Floor Sensor Node |
Use Scenario: DIN-rail mounted electricity meter collecting voltage/current samples and storing billing intervals in nonvolatile memory. IC Role / Device Role / Timing Role: Precision measurement processor with synchronous sampling, timestamping, and secure data retention. Use Value: 8 KB data flash with 1M-cycle endurance and BGO permits hourly energy accumulation without interrupting metering cycles. | Use Scenario: Wireless vibration/temperature node deployed on CNC machines for predictive maintenance. IC Role / Device Role / Timing Role: Edge intelligence hub acquiring analog sensor data, performing FFT preprocessing, and triggering BLE alerts. Use Value: On-chip temperature sensor, 26-channel ADC, and 512 KB flash support firmware-over-the-air (FOTA) updates and long-term calibration data storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LLAFB#X0 | No data flash (0 KB); identical code flash (512 KB), RAM (32 KB), peripherals, and package. | Not suitable where nonvolatile parameter storage or firmware logging is required. | Select R5F101LLAFB#X0 only when data flash is unnecessary and cost reduction is prioritized. |
| RL78/G14 R5F104LEAGFB#X0 | Enhanced variant: 512 KB flash, 32 KB RAM, but adds USB 2.0 FS, more timers, and higher max frequency (48 MHz). | Required for USB host/device connectivity or higher-performance control loops beyond 32 MHz. | Choose R5F104LEAGFB#X0 when USB interface or extended peripheral set justifies migration effort. |
Compared with R5F100LLAFB#X0, R5F101LLAFB#X0 removes data flash to reduce cost and die size while retaining full code execution capability, whereas R5F104LEAGFB#X0 extends functionality with USB and higher clock speed - making R5F100LLAFB#X0 optimal for cost-sensitive, data-logging-capable industrial controllers without USB needs.
Availability
R5F100LLAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, HVAC thermostats, and factory floor sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for R5F100LLAFB#X0 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial embedded applications requiring high integration and long-term reliability.
FAQ
What is the maximum operating frequency of the R5F100LLAFB#X0?
The R5F100LLAFB#X0 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V and TA = –20 to +85°C). This frequency enables 41 DMIPS performance while maintaining ultra-low power consumption (66 μA/MHz), making it ideal for real-time control tasks in energy-constrained systems.
Does the R5F100LLAFB#X0 support in-system programming via standard interfaces?
Yes, the R5F100LLAFB#X0 supports in-system programming via its on-chip debug interface (using SWD or JTAG), and includes self-programming capability for both code and data flash memory. The flash shield window function and block-erase prohibition provide security against unauthorized reprogramming, ensuring firmware integrity in deployed R5F100LLAFB#X0 units.
How many serial communication interfaces does the R5F100LLAFB#X0 integrate?
The R5F100LLAFB#X0 integrates up to 10 serial interfaces: 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels. Pin multiplexing allows dynamic allocation based on application needs - for example, configuring P10/P11 as SCK00/SDA00 for I²C sensor networks or as SCK00/SI00 for SPI flash memory access.
Is the R5F100LLAFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100LLAFB#X0 is pin-compatible with all other 64-pin LFQFP RL78/G13 variants sharing the FB suffix (e.g., R5F100LKAFB#X0, R5F100LJAFB#X0), as confirmed by Renesas' standardized pin configuration for the 64-pin LQFP/LFQFP family. This allows drop-in replacement for memory-size or feature-tier upgrades without PCB redesign.
What development tools are officially supported for the R5F100LLAFB#X0?
Renesas provides full toolchain support for the R5F100LLAFB#X0, including the CS+ IDE with compiler and debugger, E2 emulator Lite for hardware debugging, and the RL78/G13 Target Board (YRDKRL78G13) for rapid prototyping. Additionally, Renesas offers the FSP (Flexible Software Package) with HAL drivers, RTOS abstraction, and sample projects specifically validated for R5F100LLAFB#X0 hardware configurations.
R5F100LLAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LLAFB#X0 FAQ
1.How can I place an order for R5F100LLAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LLAFB#X0 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F100LLAFB#X0 reliable?
The price and inventory of R5F100LLAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LLAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LLAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LLAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LLAFB#X0?
R5F100LLAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LLAFB#X0 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F100LLAFB#X0?
For technical support, including R5F100LLAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LLAFB#X0 requirements.
6.How does Aetrix verify that R5F100LLAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LLAFB#X0 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F100LLAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LLAFB#X0?
All R5F100LLAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LLAFB#X0, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F100LLAFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LLAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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