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Renesas R5F101LFAFA#50
- Part No.:
- R5F101LFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101LFAFA#50 from Renesas is a 64-pin LQFP-0.65mm, 512 KB flash, 32 KB RAM RL78/G13 16-bit microcontroller with true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 10-bit ADC (26 channels), RTC, and UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101LFAFA#50 datasheet, R5F101LFAFA#50 pinout, R5F101LFAFA#50 application, or R5F101LFAFA#50 equivalent, key selection criteria include its data-flash-free architecture, -40°C to +85°C industrial-grade temperature range (A-grade), 64-pin LQFP package with 26 analog input pins, and support for background data flash programming via BGO mode.
Technical Context
The R5F101LFAFA#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer driven by dedicated low-speed oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2–4× UART/LIN channels, 2–8× CSI (SPI-compatible) channels, and DMA controller with 4 channels supporting 2-clock transfers between SFR and RAM - all operating within the 1.6–5.5 V voltage range and -40°C to +85°C ambient specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control for real-time sensor polling and motor commutation. |
| Flash Memory | 512 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window for firmware security. |
| RAM | 32 KB on-chip RAM; sufficient for dual-buffered communication stacks and real-time control variables in industrial HMI applications. |
| ADC | 10-bit resolution, 26-channel SAR ADC with internal 1.45 V reference and temperature sensor; enables direct thermal monitoring without external components. |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD active - extends battery life in wireless sensor nodes beyond 10 years. |
| Operating Voltage | 1.6 V to 5.5 V single supply; allows direct interface with LiSOCl₂, alkaline, or 3.3 V/5 V system rails without level-shifting. |
| Temperature Range | -40°C to +85°C (A-grade); qualified for deployment in outdoor utility meters and factory-floor controllers without derating. |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65-mm pitch (PLQP0064JA-A), lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared function pin supporting synchronous serial master/slave operation or I²C bus clock generation. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling flexible peripheral routing: SPI data-in, UART receive, debug interface, or I²C bidirectional data line. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel with selectable role as positive reference for ADC measurements - critical for precision sensor signal conditioning. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input or negative reference; enables ratiometric measurement setups using external bridge sensors. |
| P40/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin for hardware-triggered event handling or forced reset during in-circuit debugging sessions. |
| VDD | Core Power Supply | Primary 1.6–5.5 V supply rail powering CPU, flash, and most peripherals; decoupling required per Renesas layout guidelines. |
| VSS | Ground Reference | Digital ground plane connection; must be tied to clean system ground with low-inductance path for ADC stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC + LVD active - enables decade-scale battery operation in remote environmental monitors. |
| Background Data Flash Operation (BGO) | Allows full CPU execution from program memory while rewriting 4–8 KB data flash - essential for over-the-air firmware updates without service interruption. |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold; prevents erratic behavior during brown-out conditions in unregulated power systems. |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction; eliminates need for external RTC IC in time-stamped data loggers and energy meters. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates PID loop calculations and sensor linearization in real time. |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and secure metrology data logging. IC Role / Device Role / Timing Role: Primary metrology controller managing ADC sampling, RTC timestamping, secure flash storage, and optical/IR communication. Use Value: 512 KB flash stores encrypted firmware and decades of consumption logs; 0.57 μA STOP mode enables >15-year battery life in sealed meters. |
Use Scenario: Wireless vibration/temperature/pressure sensor node in predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition engine performing ADC oversampling, FFT preprocessing, and low-duty-cycle RF wake-up coordination. Use Value: 26-channel ADC captures multi-sensor inputs simultaneously; BGO enables firmware patching during sleep intervals without interrupting sensor duty cycles. |
| Home Energy Monitor | Factory Floor HMI Panel |
|
Use Scenario: Plug-in residential energy monitor with current transformer inputs and Bluetooth LE reporting. IC Role / Device Role / Timing Role: Analog front-end processor converting CT signals, computing RMS/kWh, and driving BLE stack via UART. Use Value: Internal 1.45 V reference and temperature sensor enable drift-compensated measurements across 0–50°C ambient range. |
Use Scenario: Local operator interface with touch buttons, LED indicators, and relay control for PLC-linked equipment. IC Role / Device Role / Timing Role: Real-time I/O coordinator managing debounced inputs, PWM dimming, and isolated relay drivers via GPIO and timers. Use Value: 64 GPIO pins (including N-ch open-drain outputs) directly drive LEDs, buzzers, and opto-isolators without external logic buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LFAFA#50 | Includes 8 KB data flash; same 512 KB code flash, 32 KB RAM, and identical pinout/package. | Preferred where field firmware updates require non-volatile parameter storage separate from code space. | Select when persistent configuration storage (e.g., calibration tables, device IDs) is required alongside main application code. |
| R5F101LFAFB#50 | Same core specs but in 64-pin LFQFP (0.5 mm pitch, PLQP0064KF-A); smaller footprint, tighter layout constraints. | Better suited for space-constrained PCBs where 0.65 mm pitch LQFP is impractical. | Choose for compact designs requiring higher component density; verify soldering process compatibility with 0.5 mm pitch. |
Compared with R5F100LFAFA#50, the R5F101LFAFA#50 omits data flash to reduce cost and simplify secure boot design, while R5F101LFAFB#50 trades package pitch for board area savings - making the R5F101LFAFA#50 optimal for cost-sensitive, thermally stable industrial panels with standard assembly lines.
Availability
R5F101LFAFA#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home energy monitors, and factory floor HMIs requiring stable component supply across multi-year production cycles.
Supply support for R5F101LFAFA#50 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and AC-powered industrial controls.
FAQ
What is the flash memory configuration of the R5F101LFAFA#50?
The R5F101LFAFA#50 contains 512 KB of code flash memory organized in 1 KB blocks, with no data flash memory onboard. This architecture simplifies secure firmware updates and reduces cost for applications that store configuration data externally or in emulated EEPROM using code flash sectors.
Does the R5F101LFAFA#50 support background data flash programming?
No - the R5F101LFAFA#50 does not include data flash memory, so background data flash programming (BGO) is not applicable. However, it supports background operation for code flash self-programming with boot swap functionality, enabling safe firmware upgrades without halting real-time tasks.
What is the operating temperature grade of the R5F101LFAFA#50?
The R5F101LFAFA#50 is rated for -40°C to +85°C ambient operation (A-grade), qualified for industrial environments including utility meters, HVAC controllers, and factory automation interfaces where extended thermal reliability is required.
Which package type does the R5F101LFAFA#50 use?
The R5F101LFAFA#50 uses a 64-pin LQFP package with 12 × 12 mm body size and 0.65 mm pin pitch (PLQP0064JA-A), compatible with standard surface-mount assembly processes and offering robust thermal and mechanical performance for industrial PCBs.
How many analog input channels does the R5F101LFAFA#50 support?
The R5F101LFAFA#50 supports up to 26 analog input channels on its 10-bit ADC, with internal 1.45 V reference and integrated temperature sensor - enabling simultaneous monitoring of multiple sensors (e.g., current, voltage, temperature) in energy metering and condition-monitoring applications.
R5F101LFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- -
- 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:
R5F101LFAFA#50 FAQ
1.How can I place an order for R5F101LFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LFAFA#50 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 R5F101LFAFA#50 reliable?
The price and inventory of R5F101LFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F101LFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LFAFA#50?
R5F101LFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LFAFA#50 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 R5F101LFAFA#50?
For technical support, including R5F101LFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LFAFA#50 requirements.
6.How does Aetrix verify that R5F101LFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F101LFAFA#50 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 R5F101LFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F101LFAFA#50?
All R5F101LFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LFAFA#50, 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 R5F101LFAFA#50 part is unused and in its original packaging.
Return procedure for R5F101LFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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