Renesas R5F100LJDFB#10
- Part No.:
- R5F100LJDFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJDFB#10.pdf
- Description:
- 16BIT MCU RL78/G13 256K 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100LJDFB#10 from Renesas is a 64-pin LFQFP-packaged RL78/G13 16-bit microcontroller with 192 KB flash, 8 KB data flash, and 16 KB RAM, operating from 1.6–5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), real-time clock, and multiple serial interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100LJDFB#10 datasheet, R5F100LJDFB#10 pinout, R5F100LJDFB#10 application, or R5F100LJDFB#10 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm pitch package, industrial-grade −40°C to +85°C operation (D-grade), on-chip debug support, and self-programmable flash with BGO capability for firmware updates without halting execution.
Technical Context
The R5F100LJDFB#10 implements the RL78 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), and includes dedicated hardware multipliers/dividers for efficient signal processing. Its memory architecture separates code flash (192 KB), data flash (8 KB), and RAM (16 KB), enabling concurrent background flash rewriting via BGO.
Power management integrates HALT, STOP, and SNOOZE modes with configurable voltage detector (LVD) interrupt/reset levels and a POR circuit. Peripheral integration includes up to 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, and 3× I²C/Simplified I²C channels - all accessible through programmable I/O ports with N-ch open-drain, TTL input, and pull-up options.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash with 1 KB block size, security lock, and self-programming |
| Data Flash | 8 KB with background operation (BGO), 1M rewrite cycles, 1.8–5.5 V programming |
| RAM | 16 KB on-chip SRAM, including dedicated flash library working area at FAF00H |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6–5.5 V supply range, compatible with single-cell Li-ion, 3.3 V, and 5 V systems |
| Temperature Range | −40°C to +85°C (Industrial D-grade), qualified for long-term deployment in harsh environments |
| Package | 64-pin LFQFP, 10 × 10 mm, 0.5 mm pitch, RoHS-compliant lead-free finish |
Pinout & Package
64-pin LFQFP (PLQP0064KF-A) with 0.5 mm pitch, 10 × 10 mm body, exposed pad optional per Renesas design guidelines. Pin functions conform to RL78/G13 standard mapping for 64-pin variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | General-purpose I/O | 64 total I/O pins; configurable as N-ch open-drain (6 V tolerant), TTL input, or with on-chip pull-up |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function serial interface | Shared UART0 receive, SPI0 slave-in, I²C0 data line, and on-chip debug channel |
| P10/SCK00/SCL00 | Serial clock line | Shared SPI0 clock and I²C0 clock; enables dual-protocol peripheral interfacing on same pins |
| RESET | Active-low reset input | Accepts external reset; internally tied to POR and LVD reset outputs |
| AVREFP/AVREFM | Analog reference inputs | Differential reference for ADC; supports external or internal 1.45 V reference selection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active - extends battery life in always-on sensing nodes |
| Background flash rewriting | Execute code from flash while updating data flash (BGO), enabling seamless field firmware upgrades |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate control algorithms |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging |
| Configurable I/O voltage interface | Supports 1.8 V, 2.5 V, and 3 V logic level interfacing without external level shifters |
| On-chip debug interface | Fully integrated with E1/E20 emulators; no external debug header required for development |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy measurement with tamper detection, tariff switching, and secure data logging in DIN-rail meters. IC Role / Device Role / Timing Role: Main system controller managing metrology IC interface, LCD driver, IR/RF communication, and secure flash storage. Use Value: 192 KB flash stores dual-application firmware (metering + comms); 8 KB data flash retains 10+ years of consumption logs with BGO writes. |
Use Scenario: Wireless vibration/temperature monitoring node in predictive maintenance systems with 10-year battery life. IC Role / Device Role / Timing Role: Low-power host MCU acquiring ADC samples, running FFT preprocessing, and triggering BLE/Wi-SUN transmission. Use Value: 0.57 μA STOP mode with RTC wake-up enables precise duty-cycled sampling; 10-bit ADC resolves sub-millivolt sensor signals. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board managing motor drive, water valves, display, and user interface. IC Role / Device Role / Timing Role: Central timing and sequencing controller coordinating PWM motor drivers, relay outputs, and touch-key scanning. Use Value: 16× 16-bit timers provide independent PWM channels for inverter control; N-ch open-drain I/O directly drives 24 V solenoids. |
Use Scenario: HVAC zone controller integrating temperature/humidity sensing, damper actuation, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Protocol-aware bridge MCU handling RS-485 physical layer, Modbus/BACnet stack, and analog sensor conditioning. Use Value: Multiple UART/I²C peripherals enable simultaneous sensor bus, actuator interface, and network transceiver control; 1.6–5.5 V range simplifies power design across 24 V AC/DC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJDFB#10 | No data flash (0 KB); identical core, peripherals, and package | Suitable where firmware updates occur only via external loader or factory programming | Select when data logging or field-upgradable parameter storage is unnecessary |
| R5F100LJAFB#10 | Same flash/RAM but in 64-pin LQFP-0.65 mm pitch (PLQP0064JA-A) instead of LFQFP-0.5 mm | Requires PCB layout change due to larger pitch and different land pattern | Choose for legacy board compatibility or simplified assembly with wider pitch tolerance |
Compared with R5F100LJDFB#10, R5F101LJDFB#10 removes data flash to reduce cost and die size while retaining full code execution capability, whereas R5F100LJAFB#10 maintains identical functionality but shifts to a more widely available LQFP footprint - both require explicit validation of flash usage and PCB layout impact before substitution.
Availability
R5F100LJDFB#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-lifecycle support, and industrial-temperature grade assurance.
Supply support for R5F100LJDFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 family delivers true low-power performance for general-purpose embedded applications, targeting cost-sensitive, battery-operated, and industrial control designs requiring robust peripheral integration and long-term supply stability.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100LJDFB#10?
The R5F100LJDFB#10 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS performance. This is achieved with zero wait-state execution from flash memory and reflects the RL78 core's optimized 3-stage pipeline efficiency under typical conditions.
Does the R5F100LJDFB#10 support in-system programming and secure firmware updates?
Yes, the R5F100LJDFB#10 supports full in-system programming via its on-chip debug interface and includes flash shield window and block erase prohibition features. It enables secure field updates using the flash self-programming library with background operation (BGO) to maintain real-time responsiveness during writes.
What are the key low-power modes available on the R5F100LJDFB#10 and their typical current consumption?
The R5F100LJDFB#10 offers HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. STOP mode is most relevant for battery longevity, maintaining calendar time and voltage monitoring while disabling CPU and most peripherals - verified at VDD = 3.0 V, TA = 25°C.
How many analog input channels does the integrated ADC support, and what reference options are available?
The R5F100LJDFB#10 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. Reference options include external differential (AVREFP/AVREFM), internal fixed 1.45 V, or VDD - selectable per channel group, enabling flexible sensor interfacing across varying supply and signal ranges.
Is the R5F100LJDFB#10 pin-compatible with other RL78/G13 64-pin variants such as R5F100LJAFB#10?
No, the R5F100LJDFB#10 (LFQFP, 0.5 mm pitch) is not pin-compatible with R5F100LJAFB#10 (LQFP, 0.65 mm pitch) despite identical pin count and function mapping - differing pitch, land pattern, and mechanical dimensions require separate PCB layouts and assembly tooling.
R5F100LJDFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- 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:
R5F100LJDFB#10 FAQ
1.How can I place an order for R5F100LJDFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJDFB#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 R5F100LJDFB#10 reliable?
The price and inventory of R5F100LJDFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJDFB#10 is usually 5 days.
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R5F100LJDFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJDFB#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 R5F100LJDFB#10?
For technical support, including R5F100LJDFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJDFB#10 requirements.
6.How does Aetrix verify that R5F100LJDFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F100LJDFB#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 R5F100LJDFB#10 meets industry standards.
7.What is the process for return or replacement of R5F100LJDFB#10?
All R5F100LJDFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJDFB#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 R5F100LJDFB#10 part is unused and in its original packaging.
Return procedure for R5F100LJDFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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