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Renesas R5F100LFAFA#V0
- Part No.:
- R5F100LFAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LFAFA#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,825
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Product details
Overview
R5F100LFAFA#V0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), used in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F100LFAFA#V0 datasheet, R5F100LFAFA#V0 pinout, R5F100LFAFA#V0 application, or R5F100LFAFA#V0 equivalent, key selection criteria include its integrated RTC with calendar support, background data flash rewrite capability (1M cycles), 10-bit 26-channel ADC with internal temperature sensor, and dual UART/LIN interfaces for robust fieldbus communication in constrained-power embedded systems.
Technical Context
The R5F100LFAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed oscillator) to 30.5 μs (32.768 kHz subsystem clock), and features an address space of 1 MB with four banks of 8-bit general-purpose registers.
It integrates a DMA controller (4 channels), 16-bit timer array (16 channels), real-time clock with alarm and correction functions, watchdog timer with dedicated low-speed oscillator, and on-chip voltage detector with 14-level LVD interrupt/reset selection - all optimized for deterministic low-power operation in industrial control loops.
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 - delivers 41 DMIPS for real-time control tasks |
| Flash Memory | 128 KB code flash with 1 KB block size and security erase lock |
| Data Flash | 8 KB with background operation (BGO) and 1,000,000 write cycles |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library use |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD active |
| Operating Voltage | 1.6 V to 5.5 V - supports single-supply operation across wide battery and rail conditions |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial interface clocking and I²C bus timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART0 RX / Debug RX / I²C Data | Shared signal path enabling debug communication, serial data reception, and I²C data transfer |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel with selectable role as positive reference for ADC measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input that doubles as negative reference for differential ADC operation |
| P22/ANI2 | Analog Input 2 | Dedicated analog input supporting 10-bit conversion with internal temperature sensor routing |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external debounced reset signals |
| VDD, VSS | Power supply and ground | Multiple VDD/VSS pairs ensure stable power delivery and noise immunity across 64-pin layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current enables multi-year battery life in always-on sensing nodes |
| Background data flash rewrite | Allows firmware updates or parameter storage without halting program execution |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction eliminate need for external timekeeping ICs |
| Multi-protocol serial interfaces | 2–4 UART/LIN, 2–8 CSI (SPI-compatible), and 3–10 I²C channels simplify peripheral integration |
| Self-programming with boot swap | Enables safe over-the-air (OTA) firmware upgrades with rollback capability |
| High-accuracy on-chip oscillator | +/-1.0% tolerance over -20°C to +85°C eliminates external crystal for cost-sensitive designs |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential and commercial electricity meters requiring long-term accuracy, tamper detection, and secure firmware updates. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and LIN/UART communication with concentrators. Use Value: Integrated 10-bit ADC with internal temperature sensor enables drift compensation; BGO data flash allows secure, non-interrupting tariff updates. |
Use Scenario: Wireless or wired environmental monitoring units deployed in factory floors or remote sites with limited maintenance access. IC Role / Device Role / Timing Role: Central acquisition unit handling analog sensor inputs (temp/humidity/pressure), local logging, and scheduled transmission via UART-to-LoRa gateway. Use Value: 0.57 μA STOP mode extends battery life beyond 5 years; RTC alarm triggers periodic wake-up without external timers. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: MCU in washing machines, HVAC controllers, or induction cooktops requiring responsive motor control and user interface management. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM-driven triac/motor drivers, touch-key scanning, and display refresh via SPI. Use Value: 41 DMIPS performance ensures smooth UI responsiveness; multiple 16-bit timers enable precise phase-angle control for AC loads. |
Use Scenario: Distributed control panel in lighting, access control, or fire alarm systems needing reliable local decision-making and bus communication. IC Role / Device Role / Timing Role: Edge node executing occupancy logic, relay actuation, and RS-485 Modbus RTU messaging with CRC validation. Use Value: Dual UART with LIN support simplifies interoperability with legacy building systems; LVD with 14-level threshold enables graceful shutdown during brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LGAFA#V0 | Same package and pinout; 128 KB flash, 8 KB data flash, but 12 KB RAM vs. 12 KB - identical memory configuration | No functional difference; differs only in traceability marking and internal wafer lot | Select when requiring Renesas' standard-grade industrial qualification (A/D temp range) |
| R5F101LFAFA#V0 | Same footprint and peripherals, but no data flash (0 KB); retains full code flash and RAM | Not suitable for applications requiring nonvolatile parameter storage or OTA update staging | Choose for cost-optimized designs where data persistence is handled externally or not required |
Compared with R5F100LFAFA#V0, R5F100LGAFA#V0 offers identical functionality with alternate traceability, while R5F101LFAFA#V0 removes data flash to reduce cost - making it viable only where background rewriting and embedded NVM are unnecessary.
Availability
R5F100LFAFA#V0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply, long-lifecycle support, and qualified industrial-grade operation.
Supply support for R5F100LFAFA#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 ultra-low-power general-purpose embedded control - balancing performance, energy efficiency, and integration to replace discrete analog/digital components in cost-sensitive industrial and consumer systems.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100LFAFA#V0?
The R5F100LFAFA#V0 operates up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS of processing performance. This enables real-time execution of control algorithms, communication stack handling, and sensor data preprocessing without external acceleration - verified in Renesas' benchmark testing under standard conditions (VDD = 3.3 V, TA = 25°C).
Does the R5F100LFAFA#V0 support in-system programming and secure firmware updates?
Yes, the R5F100LFAFA#V0 supports full in-system programming via its on-chip debug interface and includes self-programming capabilities with boot swap and flash shield window functions. These features allow secure, field-upgradable firmware with rollback protection - critical for maintaining integrity in deployed R5F100LFAFA#V0-based devices.
What analog features does the R5F100LFAFA#V0 provide for sensor interfacing?
The R5F100LFAFA#V0 integrates a 10-bit ADC with up to 26 input channels, internal 1.45 V reference voltage, and an on-die temperature sensor. It supports differential input modes using AVREFP/AVREFM pins (P20/P21), enabling precision measurement of resistive or ratiometric sensors without external references - directly usable in R5F100LFAFA#V0-based environmental monitors.
How does the R5F100LFAFA#V0 achieve ultra-low power consumption in standby modes?
The R5F100LFAFA#V0 achieves 0.57 μA in STOP mode by powering down the CPU, flash, and most peripherals while retaining RTC operation, LVD monitoring, and RAM contents. This mode is enabled via software-controlled register settings and requires no external components - allowing R5F100LFAFA#V0-based devices to maintain timekeeping and wake-on-event functionality for years on a coin cell.
Is the R5F100LFAFA#V0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100LFAFA#V0 is fully pin-compatible with all 64-pin LQFP RL78/G13 variants (e.g., R5F100LGAFA#V0, R5F101LFAFA#V0), sharing identical pin functions, electrical characteristics, and mechanical footprint. This enables direct substitution within the same PCB design when memory or feature requirements change - confirmed by Renesas' official package compatibility documentation.
R5F100LFAFA#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K 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:
R5F100LFAFA#V0 FAQ
1.How can I place an order for R5F100LFAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LFAFA#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 R5F100LFAFA#V0 reliable?
The price and inventory of R5F100LFAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LFAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100LFAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LFAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LFAFA#V0?
R5F100LFAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LFAFA#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 R5F100LFAFA#V0?
For technical support, including R5F100LFAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LFAFA#V0 requirements.
6.How does Aetrix verify that R5F100LFAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100LFAFA#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 R5F100LFAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100LFAFA#V0?
All R5F100LFAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LFAFA#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 R5F100LFAFA#V0 part is unused and in its original packaging.
Return procedure for R5F100LFAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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