Renesas R5F100LJGFB#V0
- Part No.:
- R5F100LJGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJGFB#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100LJGFB#V0 from Renesas is a 64-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, and industrial-grade operation up to +105°C. It delivers 41 DMIPS at 32 MHz, consumes just 66 μA/MHz active and 0.57 μA in RTC+LVD-only mode, and targets battery-powered industrial sensors, motor control interfaces, and smart metering endpoints.
For engineers reviewing the R5F100LJGFB#V0 datasheet, R5F100LJGFB#V0 pinout, R5F100LJGFB#V0 application, or R5F100LJGFB#V0 equivalent, key selection criteria include its integrated 10-bit 26-channel ADC, dual UART/LIN support, real-time clock with calendar, hardware multiplier/divider, and low-voltage detection across 1.6–5.5 V supply range.
Technical Context
The R5F100LJGFB#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates DMA with 4 channels, background data flash rewriting (BGO), and self-programming with boot swap and flash shield window functions.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2× CSI/SPI, 4× UART/LIN, 12-bit interval timer, watchdog timer, and on-chip temperature sensor with internal 1.45 V reference - all operating within -40°C to +105°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing |
| Max Clock | 32 MHz (41 DMIPS); high-accuracy on-chip oscillator ±1.0% over -20 to +85°C |
| Memory | 256 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference and temperature sensor |
| Timers | 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock (99-year calendar) |
| Serial Interfaces | 2× CSI/SPI, 4× UART/LIN, 3× I²C/Simplified I²C |
| Supply Range | 1.6 V to 5.5 V; ultra-low power: 66 μA/MHz active, 0.57 μA in RTC+LVD mode |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, industrial temperature grade (-40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs for noise isolation; supports 1.6–5.5 V operation |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V level shifting |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM references; enables simultaneous 10-bit ADC sampling |
| RESET | Reset input | Active-low reset with on-chip POR and selectable LVD interrupt/reset (14 levels) |
| CLKP, CLKN | Crystal oscillator inputs | Supports external crystal (32.768 kHz or 1–20 MHz) for precise timing or RTC calibration |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | HALT (0.34 μA), STOP (0.23 μA), SNOOZE (fast wake-up with partial peripheral retention) |
| Data flash BGO | Execute code from flash while rewriting data flash - enables seamless firmware updates without interruption |
| Hardware multiplier/divider | 16×16→32-bit signed/unsigned multiply, 32÷32→32-bit unsigned divide, 16×16+32→32 MAC |
| On-chip debug | Fully integrated debug interface with trace capability; no external emulator required for development |
| Security functions | Flash block erase/write prohibition, flash shield window, and boot swap for secure firmware deployment |
Applications
| Industrial Sensor Node | Smart Energy Meter Interface |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure via analog and digital sensors. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, signal conditioning, LIN bus communication, and RTC-stamped data logging. Use Value: Ultra-low 0.57 μA RTC+LVD standby extends 10-year battery life; 26-channel ADC eliminates external signal conditioning ICs. |
Use Scenario: Sub-metering module interfacing with metrology ICs, display, tamper detection, and PLC/HPLC communication. IC Role / Device Role / Timing Role: System management MCU handling pulse counting, LCD driving, secure firmware updates, and time-of-use tariff scheduling. Use Value: Integrated 8 KB data flash with 1M rewrite cycles stores 10+ years of billing logs; LIN/UART support enables direct connection to utility communication modules. |
| Brushless DC Motor Control | Home Appliance UI Controller |
Use Scenario: Compact BLDC driver board for HVAC blowers or refrigerator compressors requiring closed-loop speed regulation. IC Role / Device Role / Timing Role: Real-time motor commutation controller using PWM outputs, ADC current sensing, and quadrature encoder input. Use Value: 16× 16-bit timers with complementary PWM output enable precise 3-phase gate drive; 41 DMIPS handles field-oriented control (FOC) math in real time. |
Use Scenario: Front-panel controller for washing machines or ovens managing touch keys, LED indicators, buzzer feedback, and safety interlocks. IC Role / Device Role / Timing Role: Dedicated UI processor offloading main MCU, handling key scan, LED dimming, and audible alerts via on-chip buzzer controller. Use Value: On-chip key interrupt and clock output/buzzer controller reduce BOM count; -40°C to +105°C rating ensures reliability in hot appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJGFB#V0 | No data flash (0 KB); same core, peripherals, and package | Suitable where firmware updates or parameter storage are handled externally | Select when data flash is unnecessary and cost reduction is prioritized |
| R5F100LJGFA#V0 | LQFP-64 (0.65-mm pitch) instead of LFQFP-64 (0.5-mm pitch); identical memory/peripherals | Requires PCB layout change due to larger pad pitch and footprint | Choose for legacy LQFP-compatible designs or where finer pitch assembly is unavailable |
Compared with R5F100LJGFB#V0, R5F101LJGFB#V0 removes data flash to lower cost and power in static-firmware systems, while R5F100LJGFA#V0 retains full functionality but eases PCB assembly at the expense of board area - both require revalidation of thermal and signal integrity margins.
Availability
R5F100LJGFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meter interfaces, and BLDC motor control systems requiring stable component supply, long-term lifecycle assurance, and extended temperature support.
Supply support for R5F100LJGFB#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, integration, and energy efficiency for battery-operated and thermally constrained systems.
FAQ
What is the maximum operating frequency and performance of the R5F100LJGFB#V0?
The R5F100LJGFB#V0 operates at up to 32 MHz and delivers 41 DMIPS of processing performance. Its RL78 CPU core supports configurable instruction timing - as fast as 0.03125 μs per instruction at 32 MHz using the high-speed on-chip oscillator, or as slow as 30.5 μs at 32.768 kHz for ultra-low-power RTC operation. This flexibility allows dynamic trade-offs between throughput and energy consumption in the R5F100LJGFB#V0.
Does the R5F100LJGFB#V0 include data flash memory, and what are its endurance specifications?
Yes, the R5F100LJGFB#V0 integrates 8 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) across the full 1.8–5.5 V supply range. It supports background operation (BGO), enabling concurrent program execution and data flash rewriting - critical for reliable over-the-air updates and parameter logging in field-deployed systems using the R5F100LJGFB#V0.
What analog capabilities does the R5F100LJGFB#V0 provide for sensor interfacing?
The R5F100LJGFB#V0 features a 10-bit successive-approximation ADC with up to 26 analog input channels, internal 1.45 V reference voltage, and an integrated temperature sensor. It supports simultaneous sampling across multiple channels and operates across the full 1.6–5.5 V supply range - making it ideal for direct interfacing with resistive, capacitive, and thermistor-based sensors without external signal conditioning in the R5F100LJGFB#V0.
How does the R5F100LJGFB#V0 support low-power operation in battery-powered applications?
The R5F100LJGFB#V0 achieves industry-leading low-power operation with 66 μA/MHz active current and only 0.57 μA in STOP mode with RTC and LVD enabled. It offers three ultra-low-power states - HALT, STOP, and SNOOZE - each with configurable peripheral retention and wake-up sources including key interrupts, timer events, and serial activity - extending operational life for remote sensor nodes built around the R5F100LJGFB#V0.
Is the R5F100LJGFB#V0 qualified for industrial temperature operation, and what packaging does it use?
Yes, the R5F100LJGFB#V0 is rated for industrial operation from -40°C to +105°C ('G' grade) and housed in a 64-pin LFQFP package (10 × 10 mm, 0.5-mm pitch). This fine-pitch, lead-free package supports high-density PCB layouts while maintaining thermal robustness and mechanical reliability in demanding environments where the R5F100LJGFB#V0 is deployed.
R5F100LJGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LJGFB#V0 FAQ
1.How can I place an order for R5F100LJGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJGFB#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 R5F100LJGFB#V0 reliable?
The price and inventory of R5F100LJGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F100LJGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LJGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LJGFB#V0?
R5F100LJGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJGFB#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 R5F100LJGFB#V0?
For technical support, including R5F100LJGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJGFB#V0 requirements.
6.How does Aetrix verify that R5F100LJGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100LJGFB#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 R5F100LJGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F100LJGFB#V0?
All R5F100LJGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJGFB#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 R5F100LJGFB#V0 part is unused and in its original packaging.
Return procedure for R5F100LJGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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