Renesas R5F101MFAFA#30
- Part No.:
- R5F101MFAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFA#30.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:278
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Product details
Overview
R5F101MFAFA#30 from Renesas is a 80-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 KB RAM, 16-bit RL78 CPU core, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for industrial control and sensor interface applications.
For engineers reviewing the R5F101MFAFA#30 datasheet, R5F101MFAFA#30 pinout, R5F101MFAFA#30 application, or R5F101MFAFA#30 equivalent, key selection criteria include its 80-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade (D suffix), and integrated peripherals including 12-bit ADC (26 channels), RTC, UART/SPI/I²C, and DMA.
Technical Context
The R5F101MFAFA#30 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (@32 MHz high-speed oscillator) to 30.5 μs (@32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm functions, and watchdog timer with dedicated low-speed oscillator.
Peripherals include up to 26-channel 8/10-bit ADC with internal 1.45 V reference and temperature sensor, 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) channels, and 8–16 16-bit timers - all operating across 1.6–5.5 V supply and -40°C to +85°C ambient range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 64 KB code flash (1 KB block size); no on-chip data flash (R5F101x series) |
| RAM | 4 KB on-chip RAM for program/data storage and flash library operation |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation enables direct battery or wide-input power rail interfacing |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD active |
| ADC | 10-bit resolution (VDD-referenced), 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Package & Temp | 80-pin LQFP (14 × 14 mm, 0.65 mm pitch), industrial grade (-40°C to +85°C) |
Pinout & Package
80-pin LQFP package (PLQP0080JB-E), 14 × 14 mm body, 0.65 mm pitch, exposed pad not specified, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared serial clock line supporting master/slave SPI or I²C communication |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling SPI data-in, asynchronous UART receive, or I²C bidirectional data |
| P12/SO00/TxD0/TOOLTxD | SPI Output / UART TX | Dedicated SPI output and full-duplex UART transmit path; supports debug tool interface |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel and selectable positive reference voltage input for ADC |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input and negative reference input; enables differential ADC measurements |
| P22/ANI2 | Analog Input 2 | Dedicated analog input channel compatible with internal temperature sensor and 1.45 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention with RTC and LVD active-enables multi-year battery life in metering and remote sensors |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over 1.8–5.5 V and -20 to +85°C-eliminates external crystal for cost-sensitive timing |
| Background data flash rewriting | BGO allows code execution during data flash write-enables firmware updates without halting real-time tasks |
| Multi-protocol serial interface | Hardware support for UART (LIN-capable), I²C, and CSI (SPI-compatible) on shared pins-reduces PCB routing complexity |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction-supports time-stamped logging and scheduled wake-up in energy-harvesting systems |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC actuators and pump drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, PWM generation, fault monitoring, and CAN/UART communication. Use Value: 64 KB flash accommodates motor control libraries and safety routines; 16-bit timers with dead-time insertion enable precise 3-phase gate drive. |
Use Scenario: Residential electricity meter with pulse counting, tariff switching, and tamper detection. IC Role / Device Role / Timing Role: Primary metrology processor managing ADC sampling, RTC-based billing cycles, and secure data storage. Use Value: 26-channel ADC interfaces shunt/CT sensors and auxiliary inputs; 4 KB RAM buffers waveform data for harmonic analysis. |
| Building Automation Sensor Node | Medical Portable Monitor |
|
Use Scenario: Battery-powered CO₂, temperature, and humidity node with wireless backhaul. IC Role / Device Role / Timing Role: Low-power sensor aggregator with wake-on-event, local processing, and UART-to-Bluetooth bridge. Use Value: 0.57 μA STOP mode extends 10-year battery life; integrated temperature sensor calibrates environmental readings. |
Use Scenario: Handheld pulse oximeter with optical sensing, display, and USB charging. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing LED drivers, ADC sampling, and OLED refresh. Use Value: 10-bit ADC with 26 channels captures dual-wavelength photodiode signals; 1.6–5.5 V operation supports single-cell Li-ion input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MFAFA#30 | Includes 8 KB data flash; identical pinout, package, and peripheral set | Required where field firmware updates or parameter storage exceed 4 KB RAM capacity | Select when non-volatile parameter retention or bootloader swap functionality is needed |
| R5F101MGAFB#30 | Same flash/RAM specs but 80-pin LFQFP (0.5 mm pitch); different land pattern and thermal pad | Preferred for high-density PCBs requiring finer pitch and improved thermal dissipation | Choose only if layout supports 0.5 mm pitch and enhanced thermal management is critical |
Compared with R5F100MFAFA#30, the R5F101MFAFA#30 trades data flash for lower cost and reduced BOM count in fixed-function designs; versus R5F101MGAFB#30, it offers easier assembly and rework via 0.65 mm pitch while maintaining identical logic and timing behavior.
Availability
R5F101MFAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, building automation sensor nodes, medical portable monitors, and battery-backed RTC applications requiring stable component supply across long production lifecycles.
Supply support for R5F101MFAFA#30 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 product line delivers true low-power performance for general-purpose embedded applications, targeting cost-sensitive industrial controls, sensor nodes, and metering systems requiring robust operation from -40°C to +85°C.
FAQ
What is the flash memory configuration of the R5F101MFAFA#30?
The R5F101MFAFA#30 contains 64 KB of on-chip code flash memory organized in 1 KB blocks, with no integrated data flash (R5F101x series designation confirms this). It supports self-programming with boot swap and flash shield window functions, and uses 4 KB of RAM for flash library operations during rewriting.
Does the R5F101MFAFA#30 support hardware RTC with calendar functionality?
Yes, the R5F101MFAFA#30 includes a dedicated real-time clock peripheral with full calendar support (year/month/day/hour/minute/second), alarm interrupt, and clock correction function-operating independently in STOP mode with only RTC and LVD enabled at 0.57 μA.
What is the maximum ADC resolution and channel count supported by the R5F101MFAFA#30?
The R5F101MFAFA#30 features an 8/10-bit successive approximation ADC with up to 26 analog input channels. Resolution is selectable per channel; internal 1.45 V reference and temperature sensor are accessible, and conversion operates across the full 1.6–5.5 V supply range.
Is the R5F101MFAFA#30 pin-compatible with other RL78/G13 80-pin variants?
Yes, the R5F101MFAFA#30 shares identical pinout and LQFP-0.65mm package (PLQP0080JB-E) with all other 80-pin RL78/G13 devices including R5F100MFAFA#30 and R5F101MGAFA#30-enabling drop-in replacement where flash/RAM requirements align.
What power modes does the R5F101MFAFA#30 support for ultra-low-power operation?
The R5F101MFAFA#30 supports HALT, STOP, and SNOOZE modes. In STOP mode with RTC and LVD active, it draws just 0.57 μA; active-mode consumption is 66 μA/MHz. Voltage detector (LVD) offers 14 selectable threshold levels for brown-out protection and wake-up triggering.
R5F101MFAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
R5F101MFAFA#30 FAQ
1.How can I place an order for R5F101MFAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFA#30 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 R5F101MFAFA#30 reliable?
The price and inventory of R5F101MFAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFA#30?
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4.How is shipping managed for R5F101MFAFA#30?
R5F101MFAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFA#30 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 R5F101MFAFA#30?
For technical support, including R5F101MFAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFA#30 requirements.
6.How does Aetrix verify that R5F101MFAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFA#30 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 R5F101MFAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFA#30?
All R5F101MFAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFA#30, 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 R5F101MFAFA#30 part is unused and in its original packaging.
Return procedure for R5F101MFAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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