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Renesas R5F101MFAFA#50
- Part No.:
- R5F101MFAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFA#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101MFAFA#50 from Renesas is an RL78/G13 80-pin LQFP-0.65mm microcontroller with 64 KB flash, 4 KB data flash, 4 KB RAM, 1.6–5.5 V operation, and ultra-low-power HALT/STOP/SNOOZE modes-designed for battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101MFAFA#50 datasheet, R5F101MFAFA#50 pinout, R5F101MFAFA#50 application, or R5F101MFAFA#50 equivalent, key selection criteria include its 64 KB code flash with self-programming, 10-bit 26-channel ADC, real-time clock with calendar, and support for LIN-bus UART in industrial temperature range (−40°C to +85°C).
Technical Context
The R5F101MFAFA#50 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features a 1 MB address space with four 8-bit register banks. It integrates a high-accuracy ±1.0% on-chip oscillator (selectable from 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.
Power management includes on-chip POR and 14-level LVD with interrupt/reset options; memory subsystem comprises 64 KB flash (1 KB block size), 4 KB data flash (1M rewrite cycles, BGO supported), and 4 KB RAM-with flash library RAM usage starting at FEF00H per documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 CISC with 3-stage pipeline, 1 MB address space, 4 × 8-bit register banks |
| Flash Memory | 64 KB code flash (1 KB erase blocks), supports boot swap and flash shield window |
| Data Flash | 4 KB with background operation (BGO), 1,000,000 write cycles, VDD = 1.8–5.5 V |
| RAM | 4 KB on-chip RAM; flash library uses RAM starting at address FEF00H |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temp sensor |
| Operating Range | −40°C to +85°C (Industrial D-grade), 1.6–5.5 V supply voltage |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE |
Pinout & Package
Package: 80-pin LQFP (14 × 14 mm, 0.65-mm pitch), JEDEC standard PLQP0080JB-E tray packaging (#V0, #X0, #10, #30, #50, #70).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for CSI0 SPI master clock or I²C bus clock; requires mode configuration |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / Debug RX / I²C Data | Multi-function pin supporting serial interface flexibility and on-chip debug communication |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel and selectable positive reference for ADC conversions |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input and negative reference for differential ADC measurements |
| P22/ANI2 | Analog Input 2 | Dedicated analog input channel usable without reference conflict |
| P30/INTP0/TOOLRST | Interrupt Input / Debug Reset | External interrupt source and hardware reset trigger for on-chip debugging |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables multi-year battery life in endpoint devices |
| Self-programmable flash | Boot swap and flash shield window allow secure firmware updates without external programmer |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction support time-stamped logging in unattended systems |
| Multi-protocol serial interfaces | Up to 10 I²C, 4 UART/LIN, and 8 CSI channels enable mixed-protocol sensor and actuator connectivity |
| 10-bit 26-channel ADC | High-resolution analog sensing across wide voltage range (1.6–5.5 V) with internal reference |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Standalone electricity/water/gas meter with tamper detection and local display. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing LCD driver, and timestamping consumption data via integrated RTC. Use Value: 64 KB flash stores dual firmware images; 4 KB data flash logs 10+ years of hourly readings; STOP-mode current <1 μA extends battery life beyond 10 years. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs, performing local calibration, and formatting data for BLE/Zigbee transmission. Use Value: 26-channel 10-bit ADC interfaces multiple sensors directly; LIN-capable UART connects to legacy control buses; SNOOZE mode reduces average power during idle intervals. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Unit |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs. IC Role / Device Role / Timing Role: Real-time I/O scheduler coordinating GPIO toggling, PWM generation, and fault monitoring with deterministic latency. Use Value: 16× 16-bit timers provide precise timing for pulse-width modulation and input capture; 80-pin LQFP supports full GPIO mapping for 32+ I/O lines with ESD protection. | Use Scenario: Washing machine main control board managing motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: Central MCU handling safety-critical logic, motor commutation timing, and touch-button scanning. Use Value: On-chip key interrupt and buzzer controller simplify HMI design; 1.6–5.5 V operation tolerates brown-out conditions during load transients; HALT mode cuts standby power to <100 μA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101MGAFA#50 | Same package and pinout; 96 KB flash, 8 KB data flash, 8 KB RAM | Higher memory capacity suits firmware with larger protocol stacks (e.g., Modbus TCP + web server) | Select when >64 KB flash or >4 KB data flash is required for field-upgradable feature sets |
| R5F100MFAFA#50 | Same package and pinout; includes 8 KB data flash (vs. 4 KB) but no data flash disable option | Required where persistent parameter storage exceeds 4 KB and flash wear leveling is critical | Choose when application mandates >4 KB nonvolatile parameter storage with guaranteed 1M write endurance |
Compared with R5F101MFAFA#50, R5F101MGAFA#50 offers scalable memory for complex firmware while maintaining identical power profile and peripheral set; R5F100MFAFA#50 trades data flash configurability for higher endurance storage-making it preferable for long-life calibration or event-logging applications.
Availability
R5F101MFAFA#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, PLC I/O modules, and home appliance control units requiring stable component supply across extended product lifecycles.
Supply support for R5F101MFAFA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 family delivers ultra-low-power, cost-optimized 16-bit MCUs targeting battery-operated and energy-conscious industrial control, metering, and sensor applications.
FAQ
What is the maximum operating frequency and corresponding instruction speed for R5F101MFAFA#50?
The R5F101MFAFA#50 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, the minimum instruction execution time is 0.03125 μs. The RL78 core supports dynamic clock scaling down to 32.768 kHz (30.5 μs/instruction), enabling adaptive performance/power trade-offs in the R5F101MFAFA#50.
Does R5F101MFAFA#50 support in-system programming and secure firmware updates?
Yes, the R5F101MFAFA#50 supports self-programming with boot swap functionality and flash shield window protection. These features allow safe over-the-air or field-based firmware updates while preventing unauthorized access to protected code sections-critical for secure deployment of the R5F101MFAFA#50 in certified metering or industrial systems.
What analog capabilities does R5F101MFAFA#50 provide for sensor interfacing?
The R5F101MFAFA#50 integrates a 10-bit ADC with up to 26 input channels, internal 1.45 V reference voltage, and an on-die temperature sensor. It operates across the full 1.6–5.5 V supply range, enabling direct connection to resistive, capacitive, or voltage-output sensors without external signal conditioning-key for compact, low-BOM designs using the R5F101MFAFA#50.
How does the low-power performance of R5F101MFAFA#50 compare across operational modes?
The R5F101MFAFA#50 achieves 66 μA/MHz in HALT mode, 0.57 μA in STOP mode (RTC + LVD active), and supports SNOOZE mode for partial peripheral wake-up. This tiered power architecture allows the R5F101MFAFA#50 to sustain decade-long operation on coin cells in metering or environmental monitoring deployments.
Is R5F101MFAFA#50 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 80-pin LQFP-0.65mm variants-including R5F101MFAFA#50, R5F101MGAFA#50, and R5F100MFAFA#50-share identical pinouts and footprint. This enables hardware reuse across memory- or feature-tiered designs without PCB revision, simplifying scalability of the R5F101MFAFA#50 into higher-flash or data-flash-equipped versions.
R5F101MFAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-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:
- 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#50 FAQ
1.How can I place an order for R5F101MFAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFA#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 R5F101MFAFA#50 reliable?
The price and inventory of R5F101MFAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MFAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MFAFA#50?
R5F101MFAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFA#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 R5F101MFAFA#50?
For technical support, including R5F101MFAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFA#50 requirements.
6.How does Aetrix verify that R5F101MFAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFA#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 R5F101MFAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFA#50?
All R5F101MFAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFA#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 R5F101MFAFA#50 part is unused and in its original packaging.
Return procedure for R5F101MFAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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