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Renesas R5F101LGAFA#10
- Part No.:
- R5F101LGAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LGAFA#10.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F101LGAFA#10 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB RAM, RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), real-time clock, 10-bit ADC (26 channels), and integrated UART/I²C/CSI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101LGAFA#10 datasheet, R5F101LGAFA#10 pinout, R5F101LGAFA#10 application, or R5F101LGAFA#10 equivalent, key selection criteria include its data-flash-free architecture, -40°C to +85°C industrial temperature grade, 64-pin LQFP package with 26 analog input channels, and support for SNOOZE mode wake-up via peripheral interrupts.
Technical Context
The R5F101LGAFA#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock), and features a unified 1 MB address space with four register banks of eight 8-bit registers each.
It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction functions, watchdog timer with dedicated low-speed oscillator, and DMA controller with 4 channels enabling 2-clock transfers between SFRs and internal RAM - all operating within 1.6–5.5 V supply range and compliant with industrial ambient conditions (-40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Flash Memory | 128 KB code flash (1 KB block size); no data flash - simplifies firmware update logic |
| RAM | 8 KB on-chip RAM, including dedicated areas for flash library operations (start address FF300H) |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with Li-ion, alkaline, and 3.3 V/5 V system rails |
| Power Consumption | 66 μA/MHz active; 0.57 μA in RTC+LVD-only STOP mode - extends battery life in always-on sensing |
| Analog Peripherals | 10-bit ADC with 26 input channels and internal 1.45 V reference - supports multi-sensor signal acquisition |
| Temperature Range | -40°C to +85°C (industrial grade D suffix) - validated for deployment in HVAC controls and factory automation |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared serial clock line for master/slave communication; configurable per peripheral mode |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling debug interface (TOOLRxD), sensor bus (I²C), and legacy SPI connectivity |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel; doubles as positive reference for precision ADC measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input; serves as negative reference to enable ratiometric or differential measurement |
| P30/INTP0/TOOLnTRST | External Interrupt 0 / JTAG Reset | Hardware interrupt trigger and JTAG boundary-scan reset - critical for field firmware recovery |
| VDD | Core Power Supply | 1.6–5.5 V main supply; powers CPU, RAM, and most peripherals - decoupling required at pin |
| VSS | Digital Ground | Reference return path for digital logic; separate from AVSS in mixed-signal layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables >10-year battery life in periodic wake-up applications |
| SNOOZE mode operation | Permits background ADC conversion and UART receive while CPU remains halted - reduces average system power |
| Self-programming flash | Supports in-application reprogramming without external programmer; includes boot swap and flash shield window |
| Background operation (BGO) | Enables concurrent program execution and data flash rewrite - eliminates firmware stalls during parameter updates |
| Multi-protocol serial interface | Configurable CSI (SPI-like), UART (LIN-capable), and I²C on shared pins - minimizes PCB routing complexity |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold - protects against brown-out corruption in unregulated supplies |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered gas/water meter with hourly pressure/temperature logging and RF upload. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing RTC-triggered sampling, and handling UART-to-Sub-GHz transceiver handoff. Use Value: 0.57 μA STOP mode extends AA-cell lifetime beyond 12 years; 26-channel ADC supports multi-sensor fusion without external mux. |
Use Scenario: DIN-rail mounted condition monitor for motor vibration, temperature, and current in factory settings. IC Role / Device Role / Timing Role: Real-time data aggregator with SNOOZE-mode ADC scanning and UART/LIN output to PLC gateway. Use Value: -40°C to +85°C rating ensures reliability in enclosure environments; 128 KB flash accommodates dual firmware images for safe OTA updates. |
| Home Energy Monitor | Building Automation Controller |
|
Use Scenario: AC-powered residential energy monitor measuring voltage/current harmonics and kWh accumulation. IC Role / Device Role / Timing Role: Signal processor interfacing isolated sigma-delta ADCs, computing RMS/THD, and updating LCD via SPI. Use Value: 10-bit ADC with internal reference eliminates external precision reference IC; 66 μA/MHz efficiency lowers thermal load in sealed enclosures. |
Use Scenario: Standalone HVAC zone controller managing damper actuation, temperature setpoints, and occupancy detection. IC Role / Device Role / Timing Role: Central timing and I/O manager coordinating PWM fan control, thermistor reads, and IR remote decode. Use Value: Integrated RTC with calendar alarm enables precise scheduling; 4-channel DMA offloads burst sensor reads from CPU during PID loop execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LGAFB#10 | Same core, memory, and peripherals; differs only in LFQFP-0.5 mm (10×10 mm) package - 1.44 mm² smaller footprint | Preferred where board space is constrained and fine-pitch assembly capability exists | Select when PCB layout requires tighter component density and reflow profile supports 0.5 mm pitch |
| R5F100LGAFA#10 | Identical package and pinout but includes 8 KB data flash - adds EEPROM-like nonvolatile storage capability | Suitable for applications requiring frequent parameter logging (e.g., calibration history, event counters) | Choose when firmware must retain runtime configuration across power cycles without external serial EEPROM |
Compared with R5F101LGAFB#10, the R5F101LGAFA#10 offers identical functionality in a larger LQFP footprint that eases hand-soldering and visual inspection; versus R5F100LGAFA#10, it trades data flash capacity for reduced BOM cost and simplified flash management firmware.
Availability
R5F101LGAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility metering, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F101LGAFA#10 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 - emphasizing energy efficiency, integration density, and toolchain maturity for rapid development of battery- and line-powered devices.
FAQ
What is the maximum operating frequency and corresponding instruction speed of the R5F101LGAFA#10?
The R5F101LGAFA#10 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 μs due to its 3-stage pipeline RL78 core. This delivers 41 DMIPS performance, verified in Renesas' benchmark testing under VDD = 1.8–5.5 V and TA = –40°C to +85°C conditions.
Does the R5F101LGAFA#10 include data flash memory, and how does that affect firmware design?
No, the R5F101LGAFA#10 does not include data flash memory - confirmed by Renesas' part numbering convention ("101" denotes no data flash). Firmware must use external serial EEPROM or FRAM for nonvolatile parameter storage, or allocate wear-leveled sectors in code flash using Renesas' Flash Self-Programming Library. This reduces BOM cost but increases firmware complexity for field updates.
Which serial communication protocols are supported on the R5F101LGAFA#10, and how are they mapped to pins?
The R5F101LGAFA#10 supports CSI (SPI-compatible), UART (with LIN support), and I²C - all multiplexed on shared pins like P10 (SCK00/SCL00) and P11 (SI00/RxD0/SDA00). Pin function selection is controlled via system control registers (e.g., PMR, PCR), allowing dynamic reconfiguration. Up to 10 I²C channels and 4 UARTs are available depending on pin assignment and peripheral enable settings.
What power modes does the R5F101LGAFA#10 support, and what is the lowest achievable current draw?
The R5F101LGAFA#10 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws 0.57 μA (typical) at VDD = 3.0 V and TA = 25°C - documented in Section 1.1 of R01DS0131EJ0380. Wake-up sources include external interrupts, RTC alarm, and peripheral events such as UART receive or ADC completion.
Is the R5F101LGAFA#10 pin-compatible with other RL78/G13 variants in the same package?
Yes - all RL78/G13 devices in the 64-pin LQFP-0.65 mm package (e.g., R5F100LGAFA#10, R5F101LGAFA#10, R5F101LCAFA#10) share identical pinouts and electrical characteristics. Differences are limited to memory size, data flash presence, and temperature grade - enabling hardware reuse across product tiers with only firmware and BOM adjustments.
R5F101LGAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K 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:
R5F101LGAFA#10 FAQ
1.How can I place an order for R5F101LGAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LGAFA#10 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 R5F101LGAFA#10 reliable?
The price and inventory of R5F101LGAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LGAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F101LGAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LGAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LGAFA#10?
R5F101LGAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LGAFA#10 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 R5F101LGAFA#10?
For technical support, including R5F101LGAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LGAFA#10 requirements.
6.How does Aetrix verify that R5F101LGAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F101LGAFA#10 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 R5F101LGAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F101LGAFA#10?
All R5F101LGAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LGAFA#10, 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 R5F101LGAFA#10 part is unused and in its original packaging.
Return procedure for R5F101LGAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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