Renesas R5F100MJDFB#10
- Part No.:
- R5F100MJDFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MJDFB#10.pdf
- Description:
- 16BIT MCU RL78/G13 256K 80LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100MJDFB#10 from Renesas is an RL78/G13 80-pin LFQFP microcontroller with 192 KB flash, 8 KB data flash, 16 KB RAM, 52-channel 10-bit ADC, and real-time clock - designed for industrial motor control, sensor hubs, and smart metering requiring low-power operation down to 0.57 μA in RTC+LVD mode.
For engineers reviewing the R5F100MJDFB#10 datasheet, R5F100MJDFB#10 pinout, R5F100MJDFB#10 application, or R5F100MJDFB#10 equivalent, key selection criteria include its 80-pin LFQFP-0.5 mm package, -40°C to +85°C industrial temperature grade (D), integrated LIN-capable UARTs, hardware multiplier/divider, and background data flash rewriting capability.
Technical Context
The R5F100MJDFB#10 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual DMA controllers (4 channels), a 12-bit interval timer, and calendar-based RTC with alarm and correction functions.
Its peripheral set includes up to 4 UART/LIN interfaces, 10 I²C/Simplified I²C channels, 8–16 CSI/SPI channels, and 8–16 16-bit timers - all configurable via register-level control without external glue logic. Power management includes HALT, STOP, and SNOOZE modes with on-chip POR and 14-level LVD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 192 KB code flash with 1 KB block size and security lock against erase/rewrite |
| Data Flash | 8 KB with background operation (BGO) and 1M rewrite cycles (TYP) |
| RAM | 16 KB on-chip SRAM, including dedicated flash library RAM at FAF00H |
| ADC | 10-bit resolution, 52 analog inputs, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct battery or wide-input power rail interfacing |
| Temperature Range | -40°C to +85°C (Industrial D-grade), qualified per AEC-Q100 Class 3 |
| Low-Power Modes | 0.57 μA in STOP mode with RTC + LVD active; 66 μA/MHz in active mode |
Pinout & Package
Package: 80-pin LFQFP, 12 × 12 mm body, 0.50 mm pitch, exposed pad (PLQP0080KB-B).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain decoupling; supports mixed-voltage I/O (1.8/2.5/3.0 V interface) |
| P10–P17 | Port 1 I/O | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; used for SPI0/UART0/CSI0 signals |
| P20–P27 | Analog input group | Supports up to 52-channel ADC with AVREFP/AVREFM references and temperature sensor input |
| P30–P37 | Port 3 with LIN-UART | Hardware LIN bus support on UART1 (break detection, sync field, checksum generation) |
| P40–P47 | Timer/clock outputs | Includes 16-bit timer outputs (TO00–TO07), clock output (CLKO), and buzzer drive (BUZ) |
| RESET | Active-low reset input | Accepts external reset; internally tied to POR and LVD reset sources |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC or high-speed crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Background data flash | Execute code from main flash while rewriting data flash - no interrupt latency penalty |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control math |
| Real-time clock | Calendar function (99-year range), alarm, and auto-correction eliminate external RTC IC |
| Multi-channel serial interface | Up to 4 UART/LIN, 10 I²C, and 8 CSI channels reduce need for external protocol bridges |
| Low-voltage detector | 14 programmable LVD levels allow precise brown-out response across operating voltage range |
Applications
| Smart Energy Metering | Industrial Motor Control |
|---|---|
Use Scenario: Bidirectional energy measurement with tamper detection, time-of-use billing, and PLC/HPLC communication. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based tariff switching, and LIN/UART-driven communication stacks. Use Value: Integrated 52-channel ADC and calendar RTC eliminate external metrology ASIC and RTC, reducing BOM count by two components. | Use Scenario: Closed-loop BLDC motor control in HVAC blowers, pumps, and compressors with thermal monitoring. IC Role / Device Role / Timing Role: Real-time executor of FOC algorithms using hardware multiplier, PWM timers, and ADC-triggered current sensing. Use Value: 66 μA/MHz active power and 0.57 μA STOP mode extend runtime in battery-backed safety monitoring circuits. |
| Sensor Fusion Hub | Factory Automation I/O Module |
Use Scenario: Aggregation and preprocessing of multi-sensor data (temperature, humidity, vibration) for predictive maintenance gateways. IC Role / Device Role / Timing Role: Sensor interface hub with simultaneous ADC scanning, I²C master polling, and UART-to-Modbus gateway translation. Use Value: 10-bit ADC linearity (±1 LSB INL) and hardware CRC engine ensure accurate sensor data integrity before cloud upload. | Use Scenario: DIN-rail mounted digital I/O module with isolated inputs, relay drivers, and fieldbus connectivity. IC Role / Device Role / Timing Role: Central sequencer coordinating opto-isolated input sampling, watchdog-monitored relay timing, and RS-485 Modbus RTU transmission. Use Value: On-chip LVD with 14 threshold levels enables precise undervoltage lockout for 24 V DC industrial rails without external supervisor IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101MJDFB#10 | No data flash (0 KB); identical core, peripherals, and package | Not suitable where EEPROM-like nonvolatile parameter storage is required | Select when firmware-only storage suffices and cost reduction is prioritized |
| R5F100MLDFB#10 | 512 KB flash, 32 KB RAM, same 80-pin LFQFP-0.5 mm package | Higher memory headroom for complex protocol stacks or OTA update partitions | Choose when future firmware expansion or dual-bank secure boot is needed |
Compared with R5F100MJDFB#10, R5F101MJDFB#10 removes data flash to lower unit cost but retains full functional compatibility for code-only deployments, while R5F100MLDFB#10 scales flash/RAM for larger embedded applications without changing PCB layout or thermal design.
Availability
R5F100MJDFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart metering, and sensor fusion hubs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F100MJDFB#10 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 optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration and extended battery life.
FAQ
What is the maximum operating frequency of the R5F100MJDFB#10?
The R5F100MJDFB#10 supports up to 32 MHz operation using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C. External crystals up to 20 MHz are also supported via CLKP/CLKM pins. This frequency enables 41 DMIPS performance while maintaining the RL78/G13's 66 μA/MHz efficiency. The R5F100MJDFB#10 does not require external clock circuitry for most applications.
Does the R5F100MJDFB#10 support LIN bus communication?
Yes, the R5F100MJDFB#10 supports LIN 2.2-compliant communication through its UART peripherals - specifically UART1 and UART2 - which include hardware features such as automatic sync field detection, checksum generation, and break signal handling. These capabilities allow the R5F100MJDFB#10 to serve as a LIN slave node in automotive body electronics or industrial sub-networks without external transceivers beyond standard ISO 17987 physical layer devices.
How much user-accessible RAM is available on the R5F100MJDFB#10?
Of the total 16 KB on-chip RAM, approximately 15.5 KB is user-accessible for variables, stack, and heap. The remaining ~512 bytes starting at address FAF00H is reserved for the Flash Self-Programming Library during data flash write operations. This allocation is fixed per the RL78/G13 hardware design and documented in R20UT2944. Users must avoid overlaying this region in linker scripts when enabling self-programming features in the R5F100MJDFB#10.
What debug interface does the R5F100MJDFB#10 provide?
The R5F100MJDFB#10 includes an on-chip debug interface compliant with Renesas E1/E20 emulators, accessible via the dedicated TOOLx pins (e.g., TOOLRxD/TOOLTxD on P11/P10). It supports full JTAG-style debugging - including halt/resume, breakpoint setting, and memory/register inspection - without requiring external debug probes beyond standard Renesas debug hardware. No SWD or ARM-specific protocols are implemented; the interface is native to RL78 architecture.
Is the R5F100MJDFB#10 pin-compatible with other RL78/G13 80-pin variants?
Yes, all RL78/G13 80-pin variants - including R5F100MJDFB#10, R5F100MLDFB#10, and R5F101MJDFB#10 - share identical pinouts and LFQFP-0.5 mm mechanical dimensions (PLQP0080KB-B). Differences are limited to internal memory configuration and data flash presence, allowing drop-in replacement within the same package family without PCB revision. Thermal and electrical characteristics remain consistent across these variants.
R5F100MJDFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 64
- 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 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100MJDFB#10 FAQ
1.How can I place an order for R5F100MJDFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MJDFB#10 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 R5F100MJDFB#10 reliable?
The price and inventory of R5F100MJDFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MJDFB#10 is usually 5 days.
3.What payment methods are accepted for R5F100MJDFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MJDFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MJDFB#10?
R5F100MJDFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MJDFB#10 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 R5F100MJDFB#10?
For technical support, including R5F100MJDFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MJDFB#10 requirements.
6.How does Aetrix verify that R5F100MJDFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F100MJDFB#10 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 R5F100MJDFB#10 meets industry standards.
7.What is the process for return or replacement of R5F100MJDFB#10?
All R5F100MJDFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MJDFB#10, 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 R5F100MJDFB#10 part is unused and in its original packaging.
Return procedure for R5F100MJDFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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