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Renesas R5F100MFDFA#X0
- Part No.:
- R5F100MFDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F100MFDFA#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,023
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Product details
Overview
R5F100MFDFA#X0 from Renesas is an RL78/G13 80-pin LQFP-0.65mm microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, and real-time clock for embedded control in industrial sensor nodes and power-constrained HMI systems.
For engineers reviewing the R5F100MFDFA#X0 datasheet, R5F100MFDFA#X0 pinout, R5F100MFDFA#X0 application, or R5F100MFDFA#X0 equivalent, key selection criteria include its 80-pin LQFP package with 0.65-mm pitch, -40°C to +85°C industrial temperature grade (D suffix), integrated data flash for parameter storage, and RL78 CPU core supporting SNOOZE mode for battery-backed operation.
Technical Context
The R5F100MFDFA#X0 implements the RL78 CISC 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 register banks. Its memory subsystem includes 128 KB code flash (1 KB block size), 8 KB data flash with background operation (BGO) and 1M rewrite endurance, and 12 KB on-chip RAM.
Peripherals include eight 16-bit timers, one 12-bit interval timer, calendar-based real-time clock with alarm and correction, watchdog timer, 10-bit ADC with internal 1.45 V reference and temperature sensor, and up to ten serial interfaces (CSI, UART/LIN, I²C) across configurable channels - all operating within 1.6–5.5 V supply range and qualified for industrial ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt latency for real-time control loops. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance while maintaining 66 μA/MHz active current efficiency. |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports self-programming with boot swap and flash shield window for firmware updates and secure parameter storage. |
| ADC Resolution & Channels | 10-bit resolution, 26 analog input channels; includes internal 1.45 V reference and temperature sensor for calibration-free sensing. |
| Low-Power Modes | HALT, STOP, and SNOOZE modes; SNOOZE allows peripheral operation (e.g., UART receive) while CPU sleeps, reducing system wake-up latency. |
| Operating Voltage | 1.6 V to 5.5 V; enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic without level shifters. |
| Temperature Range | -40°C to +85°C (Industrial D-grade); validated for continuous operation in factory automation and building control environments. |
Pinout & Package
Package: 80-pin plastic LQFP, 12 × 12 mm body, 0.65-mm pitch, exposed pad (PLQP0080JB-E).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Configurable dual-function pin enabling hardware SPI master/slave or I²C bus communication with programmable slew rate. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-protocol pin supporting serial data input for SPI, asynchronous UART receive, or I²C bidirectional data transfer. |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel that doubles as positive reference voltage source for ADC measurements, improving measurement accuracy. |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input that serves as negative reference for differential ADC conversions, enabling ratiometric sensor interfacing. |
| P30/INTP0/TOOLRST | External Interrupt 0 / Debug Reset | Dual-role pin used for edge-triggered external interrupt or hardware reset during debug session via Renesas E2 emulator. |
| VDD | Main Power Supply | Primary 1.6–5.5 V supply rail powering CPU core, flash, and most peripherals; decoupling required per datasheet layout guidelines. |
| VSS | Ground | Digital ground reference; separate analog ground (AVSS) is available for noise-sensitive ADC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces system standby current to 0.57 μA (RTC + LVD only), extending battery life in wireless sensor nodes beyond 10 years. |
| Data flash with BGO | Enables concurrent program execution and non-volatile parameter writes (e.g., calibration data, device ID), eliminating firmware stalls during field updates. |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold ensures reliable brown-out detection across varying supply conditions without external components. |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction support eliminates need for external RTC IC in time-stamped logging and scheduling applications. |
| Multi-protocol serial interfaces | Configurable CSI (SPI-compatible), UART/LIN, and I²C channels allow single MCU to manage diverse sensors, displays, and bus networks without external protocol translators. |
| Hardware multiplier/divider | 16×16→32-bit multiply and 32÷32→32-bit divide accelerate motor control algorithms, digital filtering, and PID computation in real time. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting data via UART-to-LoRaWAN gateway every 15 minutes. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-triggered wake-up, low-power sleep sequencing, and UART data framing. Use Value: SNOOZE mode enables UART receive-ready state while CPU remains halted, cutting average current to <1.2 μA and enabling >7-year CR2032 battery life. |
Use Scenario: Wall-mounted HVAC thermostat with local display, relay drivers, and Modbus RTU communication over RS-485. IC Role / Device Role / Timing Role: Central MCU handling button debouncing, PWM fan control, 10-bit ADC for thermistor reading, and full-duplex UART for Modbus slave operation. Use Value: Integrated 10-bit ADC with internal reference eliminates external precision voltage reference, reducing BOM cost by $0.18 per unit at volume. |
| Programmable Logic Relay | Energy Meter Front-End |
|
Use Scenario: DIN-rail mounted relay module accepting 24 V DC inputs and driving 230 V AC outputs with configurable logic (AND/OR/timer) via USB configuration tool. IC Role / Device Role / Timing Role: Real-time logic engine executing user-defined ladder logic in <100 μs scan time using on-chip RAM and fast interrupt response. Use Value: 128 KB flash stores multiple logic configurations and firmware; data flash retains user settings across power cycles without supercapacitor backup. |
Use Scenario: Residential energy meter front-end measuring voltage/current via shunt/CT, computing kWh, and communicating via optical port or RF. IC Role / Device Role / Timing Role: Metrology co-processor performing RMS calculation, zero-crossing detection, and pulse accumulation using hardware multiplier and 16-bit timers. Use Value: Hardware multiplier accelerates RMS computation by 4.2× vs software-only implementation, enabling 10 kS/s sampling with margin for future feature expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100MGDFA#X0 | Same package and pinout; 128 KB flash but 16 KB RAM (vs. 12 KB) and 8 KB data flash - identical peripheral set and power profile. | Preferred when additional RAM is needed for larger protocol stacks (e.g., MQTT over TLS) or extended data buffering without external SRAM. | Select R5F100MGDFA#X0 if application requires >12 KB RAM for real-time data processing or multi-threaded RTOS operation. |
| R5F101MFDFA#X0 | Same footprint and peripherals but no data flash (0 KB); otherwise identical flash size, RAM, clock, and low-power specs. | Suitable for cost-sensitive applications where parameter storage is handled externally (e.g., EEPROM or cloud sync), avoiding data flash licensing overhead. | Choose R5F101MFDFA#X0 when firmware update persistence is managed off-chip and BGO functionality is unnecessary. |
Compared with R5F100MFDFA#X0, R5F100MGDFA#X0 offers expanded RAM for complex firmware without changing PCB layout, while R5F101MFDFA#X0 reduces unit cost by removing data flash - both retain identical timing, I/O, and industrial temperature qualification.
Availability
R5F100MFDFA#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for R5F100MFDFA#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, power, and SoC solutions for industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust industrial qualification, and seamless toolchain support for rapid development of sensor, control, and HMI systems.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F100MFDFA#X0?
The R5F100MFDFA#X0 operates at up to 32 MHz with typical active current of 66 μA/MHz at VDD = 3.3 V and TA = 25°C. At this frequency, it delivers 41 DMIPS performance while maintaining ultra-low-power efficiency - critical for battery-operated devices where processing throughput must be balanced against energy budget. The R5F100MFDFA#X0 also supports dynamic clock scaling down to 32.768 kHz for sub-μA RTC operation.
Does the R5F100MFDFA#X0 include on-chip debug capability and what interface does it use?
Yes, the R5F100MFDFA#X0 includes full on-chip debug functionality compliant with Renesas E2/E2 Lite emulator standards. It uses the dedicated TOOLRxD/TOOLRST pins (P11/P30) for SWD-style serial wire debugging, enabling non-intrusive breakpoints, real-time variable watch, and flash programming without requiring JTAG header space. This debug interface is fully supported by CS+ and e2 studio IDEs for R5F100MFDFA#X0 firmware development.
How many analog input channels and what ADC resolution does the R5F100MFDFA#X0 support?
The R5F100MFDFA#X0 integrates a 10-bit successive-approximation ADC with up to 26 configurable analog input channels. It includes an internal 1.45 V reference voltage and on-die temperature sensor - both accessible without external components. This ADC supports simultaneous sampling on multiple channels via hardware trigger sources (e.g., timer overflow), making it suitable for multi-sensor monitoring in industrial equipment where R5F100MFDFA#X0 serves as the primary signal acquisition engine.
What low-power modes are available on the R5F100MFDFA#X0 and how do they differ in wake-up capability?
The R5F100MFDFA#X0 provides HALT (CPU stopped, peripherals active), STOP (all clocks halted except sub-system clock), and SNOOZE (selected peripherals like UART or ADC operate while CPU sleeps) modes. SNOOZE mode uniquely allows UART receive or ADC conversion completion to wake the CPU without full restart - reducing wake latency to <1 μs. This makes R5F100MFDFA#X0 ideal for event-driven systems like remote controls or sensor polling where responsiveness and power savings must coexist.
Is the R5F100MFDFA#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100MFDFA#X0 is fully pin-compatible with all 80-pin LQFP-0.65mm RL78/G13 variants including R5F100MGDFA#X0, R5F100MHDFA#X0, and R5F101MFDFA#X0 - sharing identical pin functions, electrical characteristics, and thermal behavior. This allows design reuse across performance tiers (flash/RAM variations) and feature sets (data flash presence), simplifying migration paths and reducing qualification effort for R5F100MFDFA#X0-based platforms.
R5F100MFDFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 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:
R5F100MFDFA#X0 FAQ
1.How can I place an order for R5F100MFDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100MFDFA#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 R5F100MFDFA#X0 reliable?
The price and inventory of R5F100MFDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100MFDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100MFDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100MFDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100MFDFA#X0?
R5F100MFDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100MFDFA#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 R5F100MFDFA#X0?
For technical support, including R5F100MFDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100MFDFA#X0 requirements.
6.How does Aetrix verify that R5F100MFDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100MFDFA#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 R5F100MFDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100MFDFA#X0?
All R5F100MFDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100MFDFA#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 R5F100MFDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100MFDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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