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Renesas R5F100LJAFB#X0
- Part No.:
- R5F100LJAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJAFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,865
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Product details
Overview
R5F100LJAFB#X0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 192 KB flash memory, 8 KB data flash, 16 KB RAM, and operation from −40°C to +105°C. It delivers 41 DMIPS at 32 MHz, consumes as low as 66 μA/MHz active and 0.57 μA in RTC+LVD-only mode, and integrates UART, I²C, CSI, 16-bit timers, 10-bit ADC (26 channels), and real-time clock - deployed in battery-powered industrial sensors and motor control interfaces.
For engineers reviewing the R5F100LJAFB#X0 datasheet, R5F100LJAFB#X0 pinout, R5F100LJAFB#X0 application, or R5F100LJAFB#X0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, 192 KB/8 KB/16 KB memory configuration, −40°C to +105°C industrial temperature grade, integrated BGO-capable data flash, and support for SNOOZE mode for ultra-low-power wake-up event handling.
Technical Context
The R5F100LJAFB#X0 implements the RL78 CPU core with a 3-stage CISC pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 192 KB code flash (1 KB block size), 8 KB background-operation data flash (1M rewrite cycles), and 16 KB SRAM - all accessible under single 1.6–5.5 V supply.
Peripherals are tightly coupled to low-power operation: DMA supports 4-channel transfers with 2-cycle latency between SFR and RAM; the 10-bit ADC offers 26 input channels with internal 1.45 V reference and temperature sensor; and the real-time clock provides calendar, alarm, and clock correction functions - all operable in STOP/HALT modes with dedicated low-speed oscillator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 192 KB code flash (1 KB erase blocks); supports self-programming with boot swap |
| Data Flash | 8 KB with background operation (BGO); 1,000,000 write cycles; VDD = 1.8–5.5 V |
| RAM | 16 KB on-chip SRAM; used by flash library starting at address FAF00H |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD-only mode; HALT/STOP/SNOOZE low-power states |
| Operating Temperature | −40°C to +105°C (industrial G-grade); qualified per AEC-Q100 not claimed |
| Analog Peripherals | 10-bit ADC with 26 channels, internal 1.45 V reference, and integrated temperature sensor |
| Digital Interfaces | Up to 10 I²C/Simplified I²C channels; 2–4 UART/LIN; 2–8 CSI (SPI-compatible); 8–16 × 16-bit timers |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting master/slave SPI clock or I²C bus clock; shared with tool interface |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | High-density peripheral sharing enables compact board design; TOOLRxD allows in-circuit debugging without dedicated debug header |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as primary ADC input or positive reference voltage source; supports ratiometric sensing |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Paired with P20 to define differential ADC reference window; enables precision analog front-end calibration |
| P50/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin simplifies system reset architecture and enables hardware-triggered debug entry without external logic |
| VDD, VSS | Power Supply / Ground | Single 1.6–5.5 V supply rail; decoupling required per Renesas layout guidelines for noise-sensitive analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA RTC+LVD retention enables >10-year coin-cell life in metering applications |
| Background data flash rewriting | Enables firmware updates or parameter storage without halting application execution |
| SNOOZE mode | Peripheral-triggered wake-up (e.g., UART RX, ADC EOC) with sub-μs latency, preserving RAM contents |
| Integrated temperature sensor | Factory-calibrated ±2°C accuracy over −40°C to +105°C; eliminates external sensor BOM cost |
| On-chip debug & security | Firmware protection via flash shield window and block erase prohibition prevents unauthorized read/write |
| Different-potential I/O | N-ch open-drain ports tolerate 1.8/2.5/3.0 V logic levels, enabling direct interface with mixed-voltage peripherals |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node with BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, data preprocessing, low-power scheduling, and UART-to-BLE bridge timing. Use Value: SNOOZE mode enables 10-second wake intervals with <1 μA average current; integrated temperature sensor reduces component count by one. |
Use Scenario: Wall-mounted HVAC zone controller with display, relay drivers, and environmental feedback loop. IC Role / Device Role / Timing Role: Real-time coordinator of fan speed (PWM), valve position (ADC feedback), and user interface (key interrupt + buzzer output). Use Value: 16 KB RAM accommodates UI stack and PID control buffers; 10-bit ADC with 26 channels supports multi-sensor fusion without external mux. |
| Motor Drive Interface Module | Programmable Logic Relay |
|
Use Scenario: Compact 3-phase inverter interface board for BLDC motor control with fault monitoring. IC Role / Device Role / Timing Role: Safety monitor and communication hub: reads gate driver faults, samples bus voltage/current, and relays status via UART to main MCU. Use Value: HALT mode ensures deterministic response to overcurrent events; LVD interrupt at 14 selectable thresholds enables precise brown-out recovery. |
Use Scenario: DIN-rail mounted industrial relay module with configurable I/O mapping and Modbus RTU interface. IC Role / Device Role / Timing Role: Deterministic state machine executing ladder logic scan, digital I/O debouncing, and serial protocol framing. Use Value: 192 KB flash stores multiple configuration profiles; data flash retains runtime counters and trip logs across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LJAFB#X0 | No data flash (0 KB); identical pinout, package, and peripheral set | Not suitable where field firmware updates or nonvolatile parameter storage is required | Select when BGO data logging or bootloader flexibility is unnecessary and cost reduction is prioritized |
| R5F100LJAFP#X0 | LQFP-64 (12 × 12 mm, 0.65-mm pitch); same memory/peripherals; larger footprint | Requires PCB redesign due to different pad layout and thermal pad presence/absence | Choose only if legacy LQFP-0.65mm tooling or thermal requirements mandate larger package |
Compared with R5F100LJAFB#X0, R5F101LJAFB#X0 removes data flash to reduce cost but sacrifices field-upgrade capability, while R5F100LJAFP#X0 retains full functionality at the expense of board space and assembly compatibility - making R5F100LJAFB#X0 optimal for new designs balancing density, features, and industrial temperature resilience.
Availability
R5F100LJAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and motor drive interface modules requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial temperature performance.
Supply support for R5F100LJAFB#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 targets cost-sensitive, ultra-low-power general-purpose embedded systems - emphasizing energy efficiency, integrated analog, and simplified development for industrial controls and consumer appliances.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100LJAFB#X0?
The R5F100LJAFB#X0 operates up to 32 MHz using its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C), delivering 41 DMIPS. This performance is achieved with the RL78 core's 3-stage pipeline and optimized instruction set, enabling real-time control tasks such as PID loops and sensor fusion within tight timing budgets.
Does the R5F100LJAFB#X0 support in-system programming and secure firmware updates?
Yes, the R5F100LJAFB#X0 supports full in-system programming via its on-chip debug interface and includes flash shield window and block erase prohibition features. These enable secure firmware updates and prevent unauthorized access to code flash - critical for protecting intellectual property in deployed industrial devices.
How does the data flash memory in the R5F100LJAFB#X0 differ from standard code flash in terms of usage and endurance?
The R5F100LJAFB#X0 includes 8 KB of dedicated data flash rated for 1,000,000 write cycles at VDD = 1.8–5.5 V, with background operation (BGO) allowing concurrent program execution. Unlike code flash, it is optimized for frequent parameter storage and wear-leveling - essential for logging, calibration data, and configuration persistence across power cycles.
What low-power modes are available on the R5F100LJAFB#X0, and what is the lowest achievable current draw?
The R5F100LJAFB#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA - verified across −40°C to +105°C. SNOOZE mode enables peripheral-triggered wake-up (e.g., UART, ADC) with sub-microsecond latency while retaining RAM and register context.
Is the R5F100LJAFB#X0 pin-compatible with other RL78/G13 variants in the 64-pin LFQFP package?
Yes, all RL78/G13 64-pin LFQFP variants - including R5F100LJAFB#X0, R5F101LJAFB#X0, and R5F100LJAFP#X0 - share identical pinouts and electrical characteristics. However, R5F100LJAFP#X0 uses a larger LQFP-0.65mm package and is not mechanically interchangeable with the LFQFP-0.5mm R5F100LJAFB#X0.
R5F100LJAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 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:
R5F100LJAFB#X0 FAQ
1.How can I place an order for R5F100LJAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJAFB#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 R5F100LJAFB#X0 reliable?
The price and inventory of R5F100LJAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LJAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LJAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LJAFB#X0?
R5F100LJAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJAFB#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 R5F100LJAFB#X0?
For technical support, including R5F100LJAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJAFB#X0 requirements.
6.How does Aetrix verify that R5F100LJAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LJAFB#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 R5F100LJAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LJAFB#X0?
All R5F100LJAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJAFB#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 R5F100LJAFB#X0 part is unused and in its original packaging.
Return procedure for R5F100LJAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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