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Renesas R5F101MFAFB#10
- Part No.:
- R5F101MFAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFB#10.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:952
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Product details
Overview
R5F101MFAFB#10 from Renesas is an RL78/G13 80-pin, LFQFP-0.5mm-pitch, industrial-grade 16-bit microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 32 MHz max CPU speed (41 DMIPS), and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial sensors, smart meters, and motor control interfaces requiring extended runtime and robust timing.
For engineers reviewing the R5F101MFAFB#10 datasheet, R5F101MFAFB#10 pinout, R5F101MFAFB#10 application, or R5F101MFAFB#10 equivalent, key selection criteria include its 80-pin LFQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, and CSI serial interfaces.
Technical Context
The R5F101MFAFB#10 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 64 KB code flash (1 KB block size), 4 KB RAM, and no on-chip data flash - distinguishing it from R5F100x variants.
Power management features include HALT, STOP, and SNOOZE modes, on-chip POR and LVD (14-level selectable), and a high-accuracy ±1.0% on-chip oscillator (1–32 MHz). Peripheral integration covers up to 26-channel 10-bit ADC, real-time clock with calendar/alarm, watchdog timer, DMA (4 channels), and multiple serial interfaces (CSI, UART/LIN, I²C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control at 41 DMIPS @ 32 MHz. |
| Flash Memory | 64 KB code flash (1 KB erase blocks); supports self-programming with boot swap and flash shield window. |
| RAM | 4 KB on-chip RAM; sufficient for real-time control stacks and small data buffers in sensor/metering applications. |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor; enables multi-sensor analog acquisition without external references. |
| Operating Voltage | 1.6 V to 5.5 V single supply; allows direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals without level shifters. |
| Temperature Range | -40°C to +85°C (industrial grade D); qualified for deployment in factory automation, HVAC, and outdoor metering environments. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE; extends battery life in intermittent-sensing applications. |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.50-mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock (CSI) and I²C clock; enables dual-protocol peripheral interfacing on one pin. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data Input / UART RX / I²C Data | Multi-function pin supporting SPI master/slave, UART receive, debug tool communication, and I²C data - reduces pin count in space-constrained designs. |
| P20/ANI0/AVREFP | Analog Input / ADC Reference Positive | Primary analog input channel with selectable AVREFP function; allows flexible ADC reference configuration for precision measurement. |
| P21/ANI1/AVREFM | Analog Input / ADC Reference Negative | Second analog input with AVREFM capability; enables differential ADC measurements and programmable reference range. |
| P50/INTP0/TOOLRST | External Interrupt / Debug Reset | Dual-role pin for hardware interrupt triggering and on-chip debugger reset; simplifies test and field recovery workflows. |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 66 μA/MHz active current and 0.57 μA STOP mode enable >10-year battery life in wireless sensor nodes. |
| Integrated Real-Time Clock | Calendar-based RTC with alarm and clock correction supports time-stamped logging and scheduled wake-up without external components. |
| Hardware Multiplier/Divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and signal processing algorithms. |
| Background Data Flash Rewrite | BGO allows full program execution during data flash updates - critical for firmware-over-the-air (FOTA) in deployed devices. |
| Dedicated LIN Support | UART peripheral with LIN bus protocol compliance enables cost-effective automotive body electronics and industrial sub-networks. |
Applications
| Smart Energy Metering | Industrial Motor Control |
|---|---|
|
Use Scenario: Residential and commercial electricity meters requiring tamper-resistant logging, tariff switching, and communication via RS-485 or PLC. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling (voltage/current), RTC timestamping, secure flash storage, and UART/RS-485 interface. Use Value: Integrated 10-bit ADC with 26 channels and internal temperature sensor enables simultaneous multi-phase sensing; 64 KB flash accommodates encryption libraries and firmware updates. |
Use Scenario: Brushless DC (BLDC) motor drives in HVAC blowers, pumps, and factory automation where compact size and thermal resilience are critical. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithms, PWM generation, fault monitoring (LVD, watchdog), and CAN/UART feedback reporting. Use Value: 41 DMIPS performance at 32 MHz meets FOC loop timing; 16-bit timers with complementary PWM outputs drive gate drivers directly; -40°C to +85°C rating ensures reliability under motor heat stress. |
| Wireless Sensor Node | Building Automation Controller |
|
Use Scenario: Battery-powered environmental monitors (temperature/humidity/CO₂) transmitting data via Sub-GHz or BLE modules. IC Role / Device Role / Timing Role: System-on-chip host managing sensor I²C reads, low-power scheduling, RTC wake-up, and UART-to-radio bridging. Use Value: 0.57 μA STOP mode with RTC+LVD preserves battery for years; integrated 1.45 V reference stabilizes ADC accuracy across voltage drop; 80-pin package provides ample GPIO for future expansion. |
Use Scenario: DIN-rail mounted controllers for lighting, HVAC, and access systems integrating occupancy sensors, relays, and Modbus RTU communication. IC Role / Device Role / Timing Role: Central logic engine handling multi-sensor polling, relay timing, non-volatile parameter storage, and isolated RS-485 Modbus slave interface. Use Value: 4 KB RAM supports Modbus register mapping and event buffering; 64 KB flash stores configuration profiles and firmware; 26-channel ADC interfaces diverse analog sensors without external mux. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MFAFB#10 | Includes 8 KB data flash and 12 KB RAM; same 80-pin LFQFP-0.5mm package and peripheral set. | Preferred where firmware requires frequent non-volatile parameter updates (e.g., calibration data, user settings) without external EEPROM. | Select when data flash endurance (1M cycles) and background rewrite are required for field-upgradable configurations. |
| R5F101MGAFB#10 | Same R5F101x series, but with 96 KB flash and 8 KB RAM; identical pinout, package, and temperature grade. | Better suited for applications needing larger firmware (e.g., protocol stacks, UI logic) while retaining identical power/peripheral profile. | Choose when additional flash headroom is needed for future feature expansion or safety-certified bootloader space. |
Compared with R5F101MFAFB#10, R5F100MFAFB#10 adds data flash for robust parameter storage, while R5F101MGAFB#10 increases code density for complex firmware - both maintain pin compatibility and industrial temperature support without PCB redesign.
Availability
R5F101MFAFB#10 is available at Aetrix Electronics and suitable for smart energy metering, industrial motor control, wireless sensor nodes, building automation controllers, and HVAC system interfaces requiring stable component supply across long product lifecycles.
Supply support for R5F101MFAFB#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, power, and SoC solutions for industrial, automotive, and enterprise markets.
The RL78/G13 family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency without external timing or memory components.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F101MFAFB#10?
The R5F101MFAFB#10 operates at up to 32 MHz with a measured performance of 41 DMIPS. This benchmark reflects its RL78 CPU core's 3-stage pipeline efficiency and is validated under standard conditions (VDD = 2.7–5.5 V, TA = -40°C to +85°C). The R5F101MFAFB#10 achieves this without external crystal oscillators, using the on-chip high-accuracy ±1.0% oscillator.
Does the R5F101MFAFB#10 include on-chip data flash memory?
No, the R5F101MFAFB#10 does not include on-chip data flash memory. As indicated by the "101" in its part number per Renesas' naming convention, it belongs to the R5F101x series, which omits data flash. In contrast, R5F100x parts include 4–8 KB data flash. The R5F101MFAFB#10 relies on its 64 KB code flash for both program and configuration storage, supported by flash shield window and boot swap functions.
What is the operating temperature range and industrial qualification status of the R5F101MFAFB#10?
The R5F101MFAFB#10 is rated for -40°C to +85°C ambient operation and carries the "D" industrial grade designation. It is fully qualified per Renesas' industrial reliability standards, including extended temperature cycling, HTOL, and ESD testing. This makes the R5F101MFAFB#10 suitable for deployment in factory floors, utility substations, and outdoor enclosures without derating.
Which serial communication interfaces are integrated into the R5F101MFAFB#10?
The R5F101MFAFB#10 integrates three serial interface types: CSI (Simplified SPI) with up to 8 channels, UART/LIN with up to 4 channels (including LIN bus support), and I²C/Simplified I²C with up to 10 channels. All are implemented in hardware with independent clock domains, enabling concurrent multi-protocol communication - for example, CSI to an ADC, UART to a radio module, and I²C to a sensor hub - without CPU overhead.
How many analog input channels and what ADC resolution does the R5F101MFAFB#10 support?
The R5F101MFAFB#10 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and on-die temperature sensor, both accessible via dedicated ANI pins. The ADC supports scan mode, group conversion, and hardware-triggered sampling - enabling synchronized multi-channel acquisition for motor current/voltage monitoring or environmental sensing.
R5F101MFAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 64
- 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 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101MFAFB#10 FAQ
1.How can I place an order for R5F101MFAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFB#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 R5F101MFAFB#10 reliable?
The price and inventory of R5F101MFAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MFAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MFAFB#10?
R5F101MFAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFB#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 R5F101MFAFB#10?
For technical support, including R5F101MFAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFB#10 requirements.
6.How does Aetrix verify that R5F101MFAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFB#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 R5F101MFAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFB#10?
All R5F101MFAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFB#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 R5F101MFAFB#10 part is unused and in its original packaging.
Return procedure for R5F101MFAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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