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Renesas R5F100LJAFA#V0
- Part No.:
- R5F100LJAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LJAFA#V0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,312
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Product details
Overview
R5F100LJAFA#V0 from Renesas is a 64-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 20 KB RAM, 32 MHz operation (41 DMIPS), and ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock-targeted for industrial control panels requiring deterministic timing and extended battery life.
For engineers reviewing the R5F100LJAFA#V0 datasheet, R5F100LJAFA#V0 pinout, R5F100LJAFA#V0 application, or R5F100LJAFA#V0 equivalent, key selection criteria include its 64-pin LQFP package with 52 I/Os, 256 KB code flash with self-programming support, -40°C to +85°C industrial temperature grade (D suffix), and integrated BGO-capable data flash for firmware-over-the-air updates without halting execution.
Technical Context
The R5F100LJAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting variable instruction execution time (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz) and 1 MB address space. Its power management includes HALT, STOP, and SNOOZE modes with on-chip POR and 14-level LVD.
Peripherals include dual DMA channels (2-clock transfers between SFR and RAM), hardware multiplier/divider/MAC, up to 16× 16-bit timers, calendar-based RTC with alarm/correction, and 10-bit ADC with internal 1.45 V reference and temperature sensor-enabling precise sensor fusion in resource-constrained edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with high-accuracy ±1.0% on-chip oscillator |
| Memory Configuration | 256 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD-only mode |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Digital Interfaces | Up to 8× CSI (SPI-compatible), 4× UART/LIN, 10× I²C/Simplified I²C |
| Package & Temp Range | LQFP-64 (12 × 12 mm, 0.65 mm pitch), -40°C to +85°C (Industrial D-grade) |
Pinout & Package
64-pin LQFP (12 × 12 mm, 0.65 mm pitch), JEDEC standard, RoHS-compliant, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 1.6–5.5 V rail; supports low-voltage brown-out detection via LVD |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P80–P87 | General-purpose I/O ports | 52 configurable GPIOs with N-ch open-drain, pull-up, TTL buffer, and multi-voltage interface (1.8/2.5/3 V) |
| P11, P12, P13 | UART0/1/2 serial I/O | Full-duplex UART with LIN bus support; enables automotive diagnostics and sensor telemetry |
| P14–P17 | SPI0/1/2/3 clock/data lines | CSI interface compatible with SPI peripherals; supports daisy-chain configuration for multi-sensor systems |
| P20–P25 | ADC analog inputs (ANI0–ANI5) | 10-bit resolution with internal reference; used for precision current/voltage monitoring in power supplies |
| P30, P31 | I²C0 SCL/SDA | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C; connects to EEPROM, sensors, and PMICs |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Enables concurrent code execution from flash while rewriting 8 KB data flash-critical for secure OTA firmware updates |
| Real-Time Clock (RTC) | Calendar function (99-year range), alarm, and auto-correction; eliminates need for external RTC IC in metering applications |
| Ultra-Low-Power Modes | STOP mode draws only 0.57 μA with RTC + LVD active-extends battery life in wireless sensor nodes beyond 10 years |
| On-Chip Debug & Security | Flash shield window and block erase prohibition prevent unauthorized firmware extraction during development and field deployment |
| Hardware Multiplier/Divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and digital filtering |
Applications
| Smart Energy Metering | Industrial HMI Panels |
|---|---|
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and RF communication. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-based billing cycles, and UART-to-PLC modem interface. Use Value: Integrated 10-bit ADC with 26 channels and RTC eliminates external components; BGO enables seamless firmware updates during meter operation. | Use Scenario: Local operator interface for PLC-controlled HVAC systems with touch feedback and status LEDs. IC Role / Device Role / Timing Role: UI processor handling button debouncing, LED PWM dimming, and RS-485 Modbus RTU communication. Use Value: 52 GPIOs support direct matrix keypad scanning and LED drivers; 32 MHz performance ensures <10 ms UI response latency. |
| Wireless Sensor Node | Appliance Motor Control |
Use Scenario: Battery-powered CO₂ sensor node transmitting data via LoRaWAN gateway every 15 minutes. IC Role / Device Role / Timing Role: System-on-chip managing sensor readout, low-power sleep scheduling, and UART-to-LoRa module handoff. Use Value: 0.57 μA STOP mode extends CR2032 battery life to >12 years; integrated temperature sensor calibrates CO₂ readings. | Use Scenario: Brushless DC motor driver in smart washing machine with speed profiling and fault logging. IC Role / Device Role / Timing Role: Motion controller executing FOC algorithms using hardware MAC and 16-bit timer PWM outputs. Use Value: Hardware multiplier/divider reduces CPU load by 40% vs software math; 16× 16-bit timers enable precise 3-phase commutation timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LJAFB#V0 | Same core, memory, and peripherals but in 64-pin LFQFP (0.5 mm pitch); smaller footprint, tighter layout constraints | Preferred for space-constrained PCBs where thermal dissipation allows reduced pad pitch | Select when board area is critical and assembly process supports 0.5 mm pitch reflow |
| R5F101LJAFA#V0 | No data flash (0 KB); otherwise identical flash/RAM/peripherals; same package and temp grade | Suitable for cost-sensitive designs where firmware updates occur only via external loader or factory programming | Choose when field firmware updates are unnecessary and BOM cost reduction is prioritized over data retention flexibility |
Compared with R5F100LJAFA#V0, R5F100LJAFB#V0 offers identical functionality in a denser package for compact layouts, while R5F101LJAFA#V0 removes data flash to reduce unit cost-making it viable only where runtime parameter storage or OTA capability is not required.
Availability
R5F100LJAFA#V0 is available at Aetrix Electronics and suitable for smart energy metering, industrial HMI panels, wireless sensor nodes, and appliance motor control requiring stable component supply across long production lifecycles.
Supply support for R5F100LJAFA#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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers ultra-low-power, cost-optimized MCUs for general-purpose embedded control-designed to replace legacy 8/16-bit devices in metering, home appliances, and industrial automation with minimal code migration effort.
FAQ
What is the operating voltage range of the R5F100LJAFA#V0?
The R5F100LJAFA#V0 operates from 1.6 V to 5.5 V, enabling direct integration with single-cell Li-ion, 3.3 V logic, and 5 V legacy systems. Its on-chip voltage detector (LVD) provides 14 programmable threshold levels for brown-out protection and system reset control across this full range.
Does the R5F100LJAFA#V0 support in-system programming via standard interfaces?
Yes, the R5F100LJAFA#V0 supports in-system programming through its on-chip debug interface using Renesas E2 studio and E2 Lite emulator. It also enables self-programming of code and data flash via boot swap and flash shield window functions-allowing secure firmware updates without external programmers.
How many analog input channels does the R5F100LJAFA#V0 ADC support?
The R5F100LJAFA#V0 features a 10-bit successive approximation ADC with up to 26 analog input channels (ANI0–ANI25), including dedicated pins for AVREFP/AVREFM and internal temperature sensor access-supporting simultaneous sampling of multiple sensors in energy monitoring applications.
What is the maximum number of UART interfaces available on the R5F100LJAFA#V0?
The R5F100LJAFA#V0 supports up to four UART channels (UART0–UART3), each capable of LIN bus protocol compliance. This enables concurrent communication with multiple subsystems-for example, one UART for host MCU, one for display, one for sensor hub, and one for diagnostic port.
Is the R5F100LJAFA#V0 qualified for industrial temperature operation?
Yes, the R5F100LJAFA#V0 carries the 'D' grade suffix indicating qualification for industrial ambient temperature operation from -40°C to +85°C. This is confirmed in the RL78/G13 datasheet section 1.1 and ordering part number decoding table.
R5F100LJAFA#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):
- 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:
R5F100LJAFA#V0 FAQ
1.How can I place an order for R5F100LJAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LJAFA#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 R5F100LJAFA#V0 reliable?
The price and inventory of R5F100LJAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LJAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100LJAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LJAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LJAFA#V0?
R5F100LJAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LJAFA#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 R5F100LJAFA#V0?
For technical support, including R5F100LJAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LJAFA#V0 requirements.
6.How does Aetrix verify that R5F100LJAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100LJAFA#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 R5F100LJAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100LJAFA#V0?
All R5F100LJAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LJAFA#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 R5F100LJAFA#V0 part is unused and in its original packaging.
Return procedure for R5F100LJAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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