Renesas R5F100MFGFB#X0
- Part No.:
- R5F100MFGFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MFGFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100MFGFB#X0 from Renesas is an RL78/G13 80-pin, 5V-tolerant 16-bit microcontroller with 128 KB flash, 12 KB RAM, and integrated 10-bit ADC, RTC, and low-power modes (0.57 μA in STOP with RTC+LVD). It operates from 1.6–5.5 V and delivers 41 DMIPS at 32 MHz, targeting battery-powered industrial sensors and smart metering interfaces.
For engineers reviewing the R5F100MFGFB#X0 datasheet, R5F100MFGFB#X0 pinout, R5F100MFGFB#X0 application, or R5F100MFGFB#X0 equivalent, key selection criteria include its LFQFP-80 (12×12 mm, 0.5-mm pitch) package, -40°C to +105°C industrial temperature grade (G-suffix), data flash (8 KB), and dual UART/LIN support for robust serial communication in constrained environments.
Technical Context
The R5F100MFGFB#X0 implements the RL78 CPU core with a 3-stage pipeline, 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 128 KB code flash (1 KB block size), 8 KB data flash with background operation (BGO), and 12 KB SRAM - all accessible via unified 1 MB address space.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, one calendar-capable real-time clock (RTC), one watchdog timer, up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, and three serial interface types: CSI (SPI-compatible), UART/LIN (2 channels), and I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline and 1 MB address space |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for real-time control loop execution |
| Flash Memory | 128 KB code flash with 1 KB erase blocks and flash shield window security |
| Data Flash | 8 KB with background operation (BGO) and 1M rewrite cycles (TYP) |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library self-programming |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE for low-latency wake-up |
| Operating Voltage | 1.6–5.5 V - supports direct interfacing with 3.3 V and 5 V peripherals without level shifters |
Pinout & Package
Package: 80-pin LFQFP (12 × 12 mm, 0.5-mm pitch), RoHS-compliant, industrial-grade (G-suffix = -40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD pins (Pins 1, 79) and multiple VSS (Pins 2, 40, 80) enable low-noise power distribution and EMI reduction |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin supporting master/slave SPI timing or I²C bus clock generation |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART0 RX / debug RX / I²C data | Shared serial interface pin enabling flexible peripheral routing and in-circuit debugging |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as primary analog input or ADC voltage reference source for precision measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Supports differential ADC measurement or external reference biasing |
| P22/ANI2 | Analog input 2 | Dedicated analog input channel compatible with internal temperature sensor output |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC or external clock source up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - enables multi-year battery life in remote sensors |
| Data flash BGO | Allows full CPU execution from program memory while rewriting data flash - eliminates interrupt latency during logging |
| Multi-protocol serial interfaces | 2 UART/LIN + 3–10 I²C + 2–8 CSI channels - simplifies connectivity to displays, transceivers, and sensors without external bridges |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - removes need for external RTC IC in time-stamped applications |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates motor control and filtering algorithms |
| 5-V-tolerant I/O | All GPIOs withstand 5 V regardless of VDD (1.6–5.5 V) - enables direct interfacing with legacy 5 V logic and analog front-ends |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Bidirectional energy monitoring in DIN-rail mounted meters with tamper detection and time-of-use billing. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based tariff switching, LIN communication to display module, and secure flash storage of consumption logs. Use Value: Integrated 10-bit ADC with internal reference and 8 KB data flash enable accurate, long-term energy logging without external components. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems with local edge processing before RF transmission. IC Role / Device Role / Timing Role: Signal acquisition controller running FFT preprocessing on ADC data, triggering wake-up from STOP mode on threshold events, and managing UART-to-LoRaWAN bridge. Use Value: 0.57 μA STOP mode with RTC ensures precise wake intervals; hardware multiplier accelerates real-time spectral analysis. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Motor-driven HVAC fan control with soft-start, thermal protection, and user interface via touch keys and LED indicators. IC Role / Device Role / Timing Role: Real-time motor commutation controller using PWM timers, on-chip key interrupt for capacitive touch sensing, and buzzer output for status feedback. Use Value: On-chip key interrupt and clock output/buzzer controller eliminate discrete timing and driver ICs, reducing BOM count. |
Use Scenario: DIN-rail mounted lighting and HVAC controller with Modbus RTU over RS-485 and local LCD menu navigation. IC Role / Device Role / Timing Role: Protocol gateway handling UART-to-Modbus framing, RTC-synchronized scheduling, and I²C interface to character LCD and EEPROM. Use Value: Dual UART with LIN support allows native RS-485 transceiver interfacing and firmware updates via service port without protocol translation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MGAFB#X0 | Same 80-pin LFQFP package and G-temp grade, but 96 KB flash / 8 KB RAM / 4 KB data flash | Lower memory configuration suits simpler control tasks with reduced firmware footprint and logging depth | Select when application requires identical thermal and mechanical fit but lower nonvolatile storage needs |
| R5F101MLAFB#X0 | Same pinout and package, but no data flash (0 KB); otherwise identical flash/RAM/peripherals | Lacks background data logging capability - unsuitable for applications requiring persistent event history without external EEPROM | Choose only if data flash functionality is unnecessary and cost optimization is prioritized over field-upgradable parameter storage |
Compared with R5F100MGAFB#X0 and R5F101MLAFB#X0, the R5F100MFGFB#X0 uniquely balances extended data retention (8 KB BGO-capable data flash), industrial temperature resilience (+105°C), and sufficient compute headroom (128 KB flash, 41 DMIPS) for feature-rich embedded control without external memory or timing ICs.
Availability
R5F100MFGFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across extended product lifecycles.
Supply support for R5F100MFGFB#X0 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 management solutions for automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration and energy efficiency for battery-operated and thermally constrained systems.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100MFGFB#X0?
The R5F100MFGFB#X0 operates at up to 32 MHz with its high-speed on-chip oscillator, achieving 41 DMIPS. This performance level supports real-time control loops, sensor fusion, and communication protocol stacks without external acceleration. The minimum instruction time is 0.03125 μs under these conditions, and the device maintains full functionality across its 1.6–5.5 V supply range.
Does the R5F100MFGFB#X0 include integrated data flash, and what are its key characteristics?
Yes, the R5F100MFGFB#X0 includes 8 KB of data flash memory. It supports background operation (BGO), allowing CPU execution from program memory during rewrites. Rated for 1,000,000 write/erase cycles (typical) and programmable at VDD = 1.8–5.5 V, it enables reliable parameter storage, firmware update staging, and event logging without external EEPROM.
What temperature grade does the R5F100MFGFB#X0 support, and how is this indicated in the part number?
The R5F100MFGFB#X0 carries the 'G' suffix, designating the industrial temperature grade of –40°C to +105°C. This is confirmed in the RL78/G13 datasheet Section 1.2 and Table 1-1, where 'G' explicitly denotes extended ambient operation for demanding environments such as factory automation and outdoor metering.
Which serial communication protocols are supported by the R5F100MFGFB#X0, and how many instances are available?
The R5F100MFGFB#X0 supports three serial protocols: UART/LIN (2 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-compatible, up to 8 channels). All are implemented in hardware with independent clock sources and configurable baud rates, enabling concurrent communication with displays, sensors, transceivers, and host controllers.
What low-power modes are available on the R5F100MFGFB#X0, and what is the lowest achievable current consumption?
The R5F100MFGFB#X0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes 0.57 μA (typical) - verified in the datasheet Section 1.1. This enables multi-year operation on coin-cell batteries in applications like wireless sensor nodes and utility meters.
Is the R5F100MFGFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 80-pin LFQFP package (e.g., R5F100MGAFB#X0, R5F101MLAFB#X0) share identical pinouts and electrical characteristics. This allows drop-in replacement within the same package family when memory or feature requirements change - provided software is adapted for differences in flash size, data flash presence, or peripheral enablement.
R5F100MFGFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 8K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 17x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100MFGFB#X0 FAQ
1.How can I place an order for R5F100MFGFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MFGFB#X0 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 R5F100MFGFB#X0 reliable?
The price and inventory of R5F100MFGFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MFGFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100MFGFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MFGFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MFGFB#X0?
R5F100MFGFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MFGFB#X0 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 R5F100MFGFB#X0?
For technical support, including R5F100MFGFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MFGFB#X0 requirements.
6.How does Aetrix verify that R5F100MFGFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100MFGFB#X0 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 R5F100MFGFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100MFGFB#X0?
All R5F100MFGFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MFGFB#X0, 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 R5F100MFGFB#X0 part is unused and in its original packaging.
Return procedure for R5F100MFGFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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