Renesas R5F100LEDFB#X0
- Part No.:
- R5F100LEDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LEDFB#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100LEDFB#X0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 512 KB flash, 8 KB data flash, 32 KB RAM RL78/G13 16-bit MCU operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), used in industrial control panels requiring long battery life and real-time sensor interfacing.
For engineers reviewing the R5F100LEDFB#X0 datasheet, R5F100LEDFB#X0 pinout, R5F100LEDFB#X0 application, or R5F100LEDFB#X0 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, integrated RTC + calendar + alarm, 26-channel 10-bit ADC, dual UART/LIN support, and hardware BGO for concurrent code execution during data flash rewriting.
Technical Context
The R5F100LEDFB#X0 implements the RL78 CPU core with 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 and alarm, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2–4× UART/LIN interfaces, 2–8× CSI (SPI-compatible) channels, and DMA controller with 4 channels supporting 2-clock transfers between SFR and RAM - enabling deterministic timing-critical firmware execution in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables efficient code density and deterministic interrupt latency. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance for real-time control loops and protocol stacks. |
| Flash Memory | 512 KB code flash with 1 KB block size; supports secure erase/write prohibition and boot swap. |
| Data Flash | 8 KB background operation (BGO); allows full program execution while rewriting - critical for field firmware updates. |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor; enables direct analog sensing without external components. |
| Power Modes | HALT (0.57 μA), STOP, SNOOZE; supports battery-powered devices requiring multi-year operation on coin cells. |
| Operating Temperature | −40°C to +105°C (Industrial Grade G); qualified for under-hood automotive and factory-floor environments. |
| Supply Voltage | 1.6 V to 5.5 V single supply; simplifies power design across diverse input sources including Li-ion, USB, and industrial rails. |
Pinout & Package
Package: 64-pin LFQFP, 10 mm × 10 mm, 0.5 mm pitch, exposed pad (PLQP0064KF-A).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports mixed-voltage I/O (1.8/2.5/3.3 V interface capability). |
| P00–P07 | Port 0 general-purpose I/O | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; enables direct connection to legacy logic and sensors. |
| P10–P17 | Port 1 with serial functions | Supports SCK00/SCL00, SI00/RxD0, SO00/TxD0, TOOLRxD/SDA00 - provides dual UART/LIN + I²C on shared pins for flexible board routing. |
| P20–P27 | Analog input port | Includes ANI0–ANI7 and AVREFP/AVREFM; enables simultaneous 8-channel sampling with internal reference for precision measurement. |
| RTC_IN, RTC_OUT | Real-time clock crystal interface | Direct 32.768 kHz crystal connection; supports calendar, alarm, and clock correction - no external RTC IC required. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; ensures reliable startup under brown-out conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT mode | 0.57 μA current draw with RTC + LVD active - enables decade-scale battery life in wireless sensor nodes. |
| Background operation (BGO) | Execute code from flash while rewriting 8 KB data flash - eliminates firmware update downtime in field-deployed devices. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates motor control and digital filtering without software overhead. |
| On-chip debug & self-programming | Full on-chip debug via single-wire interface; flash shield window and boot swap enable secure, robust firmware updates. |
| Multi-protocol serial interface | 2–4 UART/LIN + 3–10 I²C + 2–8 CSI channels - supports concurrent CAN gateway, display interface, and sensor bus communication. |
| Temperature sensor & Vref | Integrated 1.45 V reference and calibrated temperature sensor - eliminates external components for thermal monitoring and ADC calibration. |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
|
Use Scenario: Touch-enabled front panel with LCD, keypad, and RS-485 communication in factory automation cabinets. IC Role / Device Role / Timing Role: Main system controller managing display refresh, button scan, real-time clock, and Modbus RTU over UART. Use Value: Integrated 26-channel ADC reads potentiometers and thermistors; 8 KB data flash stores calibration tables; 0.57 μA HALT mode extends backup battery life beyond 10 years. |
Use Scenario: DIN-rail mounted electricity meter with pulse counting, tariff switching, and secure firmware updates over PLC or RF link. IC Role / Device Role / Timing Role: Primary metrology co-processor handling time-of-use billing, RTC calendar, tamper detection, and encrypted OTA updates. Use Value: BGO enables seamless firmware patching without service interruption; 10-bit ADC measures shunt voltage/current; LIN interface connects to auxiliary modules like optical port or IR transceiver. |
| Automotive Body Control Module | Programmable Logic Controller (PLC) I/O Base |
|
Use Scenario: Under-dash module controlling door locks, interior lighting, and mirror adjustment with LIN slave connectivity. IC Role / Device Role / Timing Role: LIN-compliant node executing ISO 17987 message scheduling, PWM dimming, and wake-on-LIN functionality. Use Value: Hardware LIN support reduces CPU load; −40°C to +105°C rating meets AEC-Q100 Grade 2 requirements; 512 KB flash accommodates future feature expansion. |
Use Scenario: Modular I/O base unit with analog inputs, relay outputs, and EtherCAT slave interface for small-scale automation. IC Role / Device Role / Timing Role: Local intelligence hub performing analog signal conditioning, digital I/O debouncing, and local safety logic before upstream communication. Use Value: 16× 16-bit timers manage precise PWM for valve control; 4-channel DMA offloads ADC-to-memory transfers; 32 KB RAM buffers real-time process data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#X0 | Same 64-pin LFQFP package, identical peripherals, but 128 KB flash / 8 KB data flash / 12 KB RAM | Suitable for cost-sensitive designs where 512 KB flash is unnecessary and BOM reduction is prioritized | Select when firmware footprint is ≤128 KB and memory scalability is not required; lower unit cost |
| R5F101LEDFB#X0 | Pin-compatible 64-pin LFQFP variant with no data flash (0 KB), same 512 KB code flash and 32 KB RAM | Used where field firmware updates are handled externally or via external EEPROM/serial flash | Choose when data logging or parameter storage is implemented off-chip; avoids data flash wear management complexity |
Compared with R5F100LEDFB#X0, R5F100LEAFB#X0 trades flash capacity for cost efficiency in fixed-function applications, while R5F101LEDFB#X0 removes data flash entirely - simplifying firmware architecture but requiring external nonvolatile storage for runtime parameters.
Availability
R5F100LEDFB#X0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature qualification.
Supply support for R5F100LEDFB#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 family is designed for ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained applications.
FAQ
What is the maximum operating frequency and core performance of the R5F100LEDFB#X0?
The R5F100LEDFB#X0 operates at up to 32 MHz using the RL78 CPU core and delivers 41 DMIPS of processing performance. Its 3-stage pipeline CISC architecture enables efficient instruction execution with minimum times ranging from 0.03125 μs (high-speed mode) to 30.5 μs (subsystem clock mode), making it suitable for deterministic real-time control tasks in the R5F100LEDFB#X0-based system.
Does the R5F100LEDFB#X0 support background data flash rewriting while executing code from main flash?
Yes, the R5F100LEDFB#X0 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from code flash while simultaneously rewriting data flash - essential for zero-downtime firmware updates and parameter storage in field-deployed R5F100LEDFB#X0 applications.
What are the key power-saving modes available on the R5F100LEDFB#X0, and what is the lowest current consumption?
The R5F100LEDFB#X0 offers HALT, STOP, and SNOOZE modes. In HALT mode with only RTC and LVD active, it consumes just 0.57 μA - enabling multi-year operation on coin-cell batteries. Its active-mode efficiency is 66 μA/MHz, and it operates across 1.6–5.5 V, making the R5F100LEDFB#X0 ideal for energy-conscious embedded designs.
How many analog input channels and what ADC resolution does the R5F100LEDFB#X0 provide?
The R5F100LEDFB#X0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), plus internal 1.45 V reference voltage and temperature sensor. This eliminates external reference components and enables direct thermal monitoring and precision analog sensing in R5F100LEDFB#X0-based measurement systems.
Is the R5F100LEDFB#X0 qualified for industrial temperature range, and what package type does it use?
Yes, the R5F100LEDFB#X0 is rated for −40°C to +105°C (Industrial Grade G) and uses a 64-pin LFQFP package with 0.5 mm pitch (PLQP0064KF-A). Its compact 10 mm × 10 mm footprint, exposed pad thermal design, and extended temperature qualification make it suitable for demanding R5F100LEDFB#X0 deployments in factory automation and automotive under-hood environments.
R5F100LEDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F100LEDFB#X0 FAQ
1.How can I place an order for R5F100LEDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LEDFB#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 R5F100LEDFB#X0 reliable?
The price and inventory of R5F100LEDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LEDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LEDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LEDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LEDFB#X0?
R5F100LEDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LEDFB#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 R5F100LEDFB#X0?
For technical support, including R5F100LEDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LEDFB#X0 requirements.
6.How does Aetrix verify that R5F100LEDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LEDFB#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 R5F100LEDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LEDFB#X0?
All R5F100LEDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LEDFB#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 R5F100LEDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LEDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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