Renesas R5F100JJDFA#V0
- Part No.:
- R5F100JJDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JJDFA#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100JJDFA#V0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 20 KB RAM, 16-bit RL78 CPU core, and real-time clock with calendar support. It operates from 1.6–5.5 V, achieves 41 DMIPS at 32 MHz, and delivers ultra-low power consumption (66 μA/MHz active, 0.57 μA in RTC+LVD mode), targeting battery-powered industrial control and sensor nodes.
For engineers reviewing the R5F100JJDFA#V0 datasheet, R5F100JJDFA#V0 pinout, R5F100JJDFA#V0 application, or R5F100JJDFA#V0 equivalent, key selection criteria include its integrated RTC with calendar/alarm, background data flash rewrite capability (1M cycles), 10-bit 26-channel ADC with internal temperature sensor, and support for LIN-bus via UART - all within an industrial-grade -40°C to +85°C operating range.
Technical Context
The R5F100JJDFA#V0 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 256 KB on-chip code flash (1 KB block size, security-protected erase/write), 8 KB data flash with background operation (BGO), and 20 KB SRAM - enabling robust firmware updates and data logging without halting program execution.
Peripheral integration includes up to 16 channels of 16-bit timer, 12-bit interval timer, watchdog timer, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN interfaces, 2–8 CSI (SPI-compatible) channels, and an 8/10-bit ADC with internal 1.45 V reference and temperature sensor - all configurable via dedicated SFRs and supported by DMA (4-channel) for efficient data movement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic real-time response and low-power interrupt latency. |
| Max Clock Speed | 32 MHz (with ±1.0% accuracy high-speed on-chip oscillator); supports precise timing without external crystal. |
| Flash Memory | 256 KB code flash + 8 KB data flash; allows dual-bank firmware updates and nonvolatile parameter storage with BGO. |
| RAM | 20 KB on-chip SRAM; sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms. |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor; enables direct thermal monitoring and analog signal acquisition. |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD active; extends battery life in always-on edge devices. |
| Operating Temp | -40°C to +85°C (Industrial D-grade); qualified for factory automation, building controls, and outdoor metering environments. |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad (PLQP0052JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports single 1.6–5.5 V supply. |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling hardware SPI master/slave or I²C bus interface without GPIO bit-banging. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART RX / debug RX / I²C data | Shared serial interface pin supports toolchain debugging (TOOLRxD), LIN/UART communication, and I²C slave operation. |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as primary ADC channel or precision reference voltage input for ratiometric sensor measurements. |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Enables differential ADC mode or external reference biasing; critical for noise-immune analog front-end design. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; debounced internally to prevent spurious resets. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC + LVD active - enables multi-year battery life in periodic wake-up sensor applications. |
| Data flash BGO | Execute code from flash while rewriting 8 KB data flash; eliminates firmware update stalls and improves system responsiveness. |
| Integrated RTC with calendar | 99-year calendar, alarm, and clock correction - removes need for external RTC IC and reduces BOM cost/PCB area. |
| LIN-bus compliant UART | Hardware LIN 2.2/SAE J2602 support via UART module - simplifies automotive body electronics and industrial sub-network design. |
| On-chip debug interface | Fully functional on-chip debug (OCD) with SWD-like functionality - enables in-system programming and real-time trace without external emulator. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Utility-grade electricity/water/gas meter with tamper detection, time-of-use billing, and wireless backhaul. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based tariff switching, secure flash storage of consumption logs, and UART-based PLC or RF modem interface. Use Value: Integrated 10-bit 26-channel ADC with internal reference and temperature sensor enables direct shunt-based current measurement and thermal derating - eliminating external signal conditioning ICs. |
Use Scenario: Wireless vibration/temperature/humidity node deployed in factory machinery or HVAC ducts. IC Role / Device Role / Timing Role: Edge intelligence hub acquiring analog/digital sensor data, performing local FFT or threshold analysis, and scheduling low-power BLE/Wi-SUN transmissions via UART/SPI. Use Value: 0.57 μA STOP mode with RTC wake-up and BGO data flash lets the device log months of sensor history autonomously - reducing maintenance frequency and cloud upload overhead. |
| Building Automation Controller | Appliance Motor Control |
|
Use Scenario: DIN-rail mounted HVAC controller managing fan speed, valve position, CO₂ setpoints, and Modbus RTU communication. IC Role / Device Role / Timing Role: System-on-chip managing multiple PWM outputs, 16-bit timers for precise motor phase control, UART for Modbus, and I²C for environmental sensors. Use Value: 16 channels of 16-bit timer + 4-channel DMA offload timing-critical motor commutation and protocol framing - freeing CPU for supervisory logic and fault handling. |
Use Scenario: Brushless DC (BLDC) motor driver in washing machines, air conditioners, or power tools. IC Role / Device Role / Timing Role: Dedicated motor control MCU generating 3-phase PWM with dead-time insertion, sensing back-EMF via ADC, and executing FOC or trapezoidal commutation algorithms. Use Value: On-chip multiplier/divider and 16×16→32-bit MAC accelerate real-time current/voltage vector calculations - enabling smooth torque control without external DSP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JJDFA#V0 | No data flash (0 KB); identical code flash (256 KB), RAM (20 KB), package, and peripherals. | Suitable where nonvolatile parameter storage is handled externally or via EEPROM emulation in code flash. | Select when data logging or field firmware updates are not required - reduces cost and simplifies flash management. |
| RL78/G14 R5F104MJDFB#V0 | Enhanced RL78/G14 variant: 512 KB flash, 32 KB RAM, 12-bit ADC (32 ch), USB 2.0, and higher max clock (48 MHz). | Better suited for USB-connected HMI, advanced motor control with encoder feedback, or larger firmware images. | Choose when future scalability, USB connectivity, or higher analog performance is needed - same pinout but requires layout review for USB routing. |
Compared with R5F100JJDFA#V0, R5F101JJDFA#V0 removes data flash to lower cost for fixed-parameter systems, while RL78/G14 R5F104MJDFB#V0 adds USB and doubles memory resources - making it ideal for next-generation designs requiring host interface or expanded algorithm capacity.
Availability
R5F100JJDFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, and building automation controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F100JJDFA#V0 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 cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, peripheral richness, and energy efficiency for battery-operated and mains-powered industrial equipment.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F100JJDFA#V0?
The R5F100JJDFA#V0 features a high-accuracy on-chip oscillator selectable up to 32 MHz with ±1.0% tolerance over VDD = 1.8–5.5 V and TA = −20°C to +85°C. This eliminates the need for external crystals in many timing-critical applications while maintaining reliable UART/LIN baud rate generation and real-time control loop timing.
Does R5F100JJDFA#V0 support background data flash rewriting while executing application code?
Yes, the R5F100JJDFA#V0 supports Background Operation (BGO) for its 8 KB data flash memory. This allows the CPU to execute instructions from program memory during data flash erase/write cycles - essential for seamless firmware updates, configuration storage, and event logging without system interruption.
What is the analog input capability of R5F100JJDFA#V0, including reference and sensor options?
The R5F100JJDFA#V0 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and a calibrated temperature sensor - both accessible via dedicated ANI pins - enabling accurate ratiometric measurements and ambient thermal monitoring without external components.
Is R5F100JJDFA#V0 qualified for industrial temperature range operation?
Yes, R5F100JJDFA#V0 is rated for industrial operation from −40°C to +85°C (D-grade). This qualification covers full electrical specifications including flash endurance, ADC linearity, oscillator stability, and I/O drive strength - ensuring reliable deployment in factory floors, outdoor meters, and commercial HVAC systems.
How does the RTC in R5F100JJDFA#V0 differ from basic timer-based real-time counters?
The RTC in R5F100JJDFA#V0 is a dedicated calendar engine supporting year/month/day/hour/minute/second with leap-year correction, alarm interrupts, and programmable clock correction - unlike generic timers. It operates independently in STOP mode at 0.57 μA using the 32.768 kHz subsystem clock, enabling precise timekeeping for scheduling and timestamping without CPU intervention.
R5F100JJDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 38
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K 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:
R5F100JJDFA#V0 FAQ
1.How can I place an order for R5F100JJDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JJDFA#V0 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 R5F100JJDFA#V0 reliable?
The price and inventory of R5F100JJDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JJDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100JJDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JJDFA#V0 transactions.
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4.How is shipping managed for R5F100JJDFA#V0?
R5F100JJDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JJDFA#V0 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 R5F100JJDFA#V0?
For technical support, including R5F100JJDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JJDFA#V0 requirements.
6.How does Aetrix verify that R5F100JJDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100JJDFA#V0 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 R5F100JJDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100JJDFA#V0?
All R5F100JJDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JJDFA#V0, 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 R5F100JJDFA#V0 part is unused and in its original packaging.
Return procedure for R5F100JJDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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