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Renesas R5F101MFAFB#50
- Part No.:
- R5F101MFAFB#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F101MFAFB#50.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101MFAFB#50 from Renesas is an RL78/G13 80-pin, 5 V-tolerant, ultra-low-power 16-bit MCU with 64 KB flash, 4 KB data flash, 4 KB RAM, 32 MHz max CPU speed (41 DMIPS), and integrated RTC, 10-bit ADC (16 channels), UART, I²C, and SPI interfaces - deployed in battery-powered industrial sensors and smart metering endpoints.
For engineers reviewing the R5F101MFAFB#50 datasheet, R5F101MFAFB#50 pinout, R5F101MFAFB#50 application, or R5F101MFAFB#50 equivalent, key selection criteria include its 0.57 μA STOP-mode current, 66 μA/MHz active power efficiency, 80-pin LFQFP 0.5-mm pitch package, -40°C to +85°C industrial temperature grade, and absence of on-chip data flash (confirmed by "101" prefix per datasheet Section 1.2).
Technical Context
The R5F101MFAFB#50 implements the RL78 CISC core with 3-stage pipeline, supporting variable instruction timing (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz) and 1 MB address space. It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by dedicated low-speed oscillator.
Peripherals include eight 16-bit timers, three I²C/Simplified I²C channels, up to four UART/LIN channels, two CSI (SPI-compatible) interfaces, and a 10-bit A/D converter with internal 1.45 V reference and temperature sensor - all operating across 1.6–5.5 V supply range with HALT/STOP/SNOOZE low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 32 MHz (41 DMIPS), with high-accuracy ±1.0% on-chip oscillator |
| Memory Configuration | 64 KB code flash, 0 KB data flash (R5F101x series), 4 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD active |
| Analog Peripherals | 10-bit A/D converter, 16 input channels, internal 1.45 V reference & temp sensor |
| Digital Interfaces | 3× I²C/Simplified I²C, 4× UART/LIN, 2× CSI (SPI-compatible), 8× 16-bit timers |
| Operating Voltage | 1.6 V to 5.5 V single supply, 5 V-tolerant I/O pins |
| Temperature Range | -40°C to +85°C (industrial grade, "D" suffix implied by FB package context) |
Pinout & Package
Package: 80-pin LFQFP, 12 mm × 12 mm, 0.5 mm pitch, lead-free, moisture sensitivity level 3 (MSL3). Pinout conforms to Renesas PLQP0080KE-A / PLQP0080KB-B mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P10–P17, P20–P27, P30–P37, etc. | General-purpose I/O ports | 80 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; support 1.8/2.5/3 V logic interfacing |
| P10/SCK00/SCL00 | Serial clock for CSI0/I²C0 | Multi-function pin enabling hardware SPI or I²C master/slave without GPIO bit-banging |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Shared signal path reduces pin count while supporting debug (TOOLRxD) and dual-protocol communication |
| P12/SO00/TxD0/TOOLTxD/SCL00 | Serial data output / UART transmit / I²C clock | Enables full-duplex UART or half-duplex I²C on same physical pinset; TOOLTx supports on-chip debugging |
| RESET | Active-low reset input | Accepts external reset; internally tied to on-chip POR and LVD circuits for fail-safe initialization |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy; optional high-speed crystal up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current enables >10-year battery life in metering applications with RTC wake-up |
| Self-programmable flash | Boot-swap and flash shield window functions enable secure field firmware updates without external programmer |
| Integrated analog subsystem | 10-bit ADC with 16-channel scan, internal reference, and temperature sensor eliminate external BOM components |
| Multi-protocol serial engine | Hardware UART/LIN + I²C + CSI on shared pins reduces PCB routing complexity and layout area |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction support time-stamped logging and scheduled wake-up events |
| On-chip voltage detector | 14-level LVD with interrupt/reset options ensures reliable brown-out protection across wide VDD range |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and sub-GHz RF module interface. Use Value: 0.57 μA STOP-mode current extends lithium primary battery life beyond 15 years; 10-bit ADC meets IEC 62053-21 Class 0.5S accuracy requirements. |
Use Scenario: Wireless vibration/temperature/pressure sensor in predictive maintenance systems. IC Role / Device Role / Timing Role: Data acquisition hub collecting analog sensor outputs, performing local FFT preprocessing, and triggering BLE/Wi-Fi transmission on threshold breach. Use Value: 66 μA/MHz active power minimizes energy per measurement cycle; integrated RTC enables precise duty-cycled sampling (e.g., 1 sample/hour). |
| Home Automation Gateway | Medical Wearable Monitor |
Use Scenario: Zigbee/Z-Wave bridge aggregating lighting, HVAC, and security endpoints. IC Role / Device Role / Timing Role: Protocol translator and command scheduler coordinating multiple concurrent serial buses (UART to Zigbee SoC, I²C to environmental sensors). Use Value: 3× I²C + 4× UART + 2× CSI eliminates need for external bus expanders; 5 V-tolerant I/O simplifies level-shifting with legacy 5 V peripherals. |
Use Scenario: ECG/SpO₂ patch with motion artifact compensation and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal conditioning controller acquiring analog biosignals, applying digital filtering, and managing low-power BLE advertising intervals. Use Value: On-chip temperature sensor calibrates ADC offset drift; SNOOZE mode allows background ADC conversion during CPU sleep, reducing overall system latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MFAFB#50 | Includes 4 KB data flash; identical pinout, package, and peripheral set | Required where EEPROM-like nonvolatile storage is needed for calibration data or event logs | Select when field firmware must store runtime parameters without external memory |
| RL78/G14 R5F11MMAFP#30 | Enhanced RL78/G14 core; adds 32 KB RAM, 128 KB flash, and CAN interface | Suitable for CAN-based building automation or motor control where protocol stack integration is critical | Choose only if CAN bus connectivity or >4 KB RAM is mandatory; higher cost and power |
Compared with R5F100MFAFB#50, the R5F101MFAFB#50 saves board space and BOM cost by omitting data flash - ideal for fixed-parameter firmware deployments - while matching all timing, power, and interface specs. Versus RL78/G14, it trades CAN and extra RAM for lower unit cost and proven qualification in long-lifecycle industrial designs.
Availability
R5F101MFAFB#50 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home automation gateways requiring stable component supply, extended lifecycle support, and RoHS-compliant packaging.
Supply support for R5F101MFAFB#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 targets cost-sensitive, ultra-low-power general-purpose applications - balancing performance, energy efficiency, and integration for battery-operated and energy-harvesting systems.
FAQ
Does R5F101MFAFB#50 include on-chip data flash memory?
No, R5F101MFAFB#50 does not include on-chip data flash memory. The "101" in the part number explicitly denotes zero data flash capacity per Renesas RL78/G13 datasheet Section 1.2. This distinguishes it from "100"-series variants like R5F100MFAFB#50, which integrate 4 KB of data flash for EEPROM emulation.
What is the maximum operating frequency and associated DMIPS rating for R5F101MFAFB#50?
R5F101MFAFB#50 operates at up to 32 MHz with a measured performance of 41 DMIPS (Dhrystone 2.1). This is achieved using the high-speed on-chip oscillator, which maintains ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C - confirmed in datasheet Section 1.1.
Which package type and pin count does R5F101MFAFB#50 use?
R5F101MFAFB#50 uses an 80-pin LFQFP package with 0.5 mm pitch, 12 mm × 12 mm body size, and lead-free finish. The "FB" suffix in the part number directly maps to this package per Figure 1-1 and Table 1-1 in the RL78/G13 datasheet (R01DS0131EJ0380).
What low-power modes are supported by R5F101MFAFB#50, and what is the lowest achievable current draw?
R5F101MFAFB#50 supports HALT, STOP, and SNOOZE modes. Its lowest operational current is 0.57 μA in STOP mode with only RTC and LVD active - a value validated across -40°C to +85°C and specified in the datasheet's "Ultra-low power consumption technology" feature list.
Can R5F101MFAFB#50 interface directly with 3.3 V or 1.8 V logic devices?
Yes, R5F101MFAFB#50 supports different-potential interface: its I/O ports can be configured for 1.8 V, 2.5 V, or 3 V logic levels while powered from 1.6–5.5 V. This is enabled via programmable input buffer thresholds and is documented in the "I/O port" feature section of the datasheet.
Is the R5F101MFAFB#50 pin-compatible with any other RL78/G13 variants?
Yes, R5F101MFAFB#50 shares identical pinout and package with all other 80-pin LFQFP "M"-series RL78/G13 MCUs, including R5F100MFAFB#50 and R5F101MGAFB#50. Pin compatibility is guaranteed within the same package variant (FB) and pin count (80), as verified in Table 1-1 and mechanical drawings PLQP0080KE-A/KB-B.
R5F101MFAFB#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:
R5F101MFAFB#50 FAQ
1.How can I place an order for R5F101MFAFB#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101MFAFB#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 R5F101MFAFB#50 reliable?
The price and inventory of R5F101MFAFB#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101MFAFB#50 is usually 5 days.
3.What payment methods are accepted for R5F101MFAFB#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101MFAFB#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101MFAFB#50?
R5F101MFAFB#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101MFAFB#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 R5F101MFAFB#50?
For technical support, including R5F101MFAFB#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101MFAFB#50 requirements.
6.How does Aetrix verify that R5F101MFAFB#50 is sourced from the original manufacturer or authorized distributors?
All R5F101MFAFB#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 R5F101MFAFB#50 meets industry standards.
7.What is the process for return or replacement of R5F101MFAFB#50?
All R5F101MFAFB#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101MFAFB#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 R5F101MFAFB#50 part is unused and in its original packaging.
Return procedure for R5F101MFAFB#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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