Renesas R5F100FFAFP#X0
- Part No.:
- R5F100FFAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F100FFAFP#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,336
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Product details
Overview
R5F100FFAFP#X0 from Renesas is a 44-pin LQFP-44, 96 KB flash, 4 KB data flash, 4 KB RAM RL78/G13 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 41 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.57 μA RTC+LVD), used in battery-powered industrial sensor nodes and smart metering interfaces.
For engineers reviewing the R5F100FFAFP#X0 datasheet, R5F100FFAFP#X0 pinout, R5F100FFAFP#X0 application, or R5F100FFAFP#X0 equivalent, key selection criteria include its integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, dual UART/LIN support, and 44-pin LQFP package with industrial-grade -40°C to +85°C operation.
Technical Context
The R5F100FFAFP#X0 implements the RL78 CPU core with CISC architecture and 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 on-chip debug, self-programming flash with boot swap, and background operation for data flash rewriting.
It features a 16-bit timer array (12 channels), 12-bit interval timer, watchdog timer with dedicated low-speed oscillator, and serial interfaces including 3–10 I²C channels, 2–4 UART/LIN channels, and 2–8 CSI (SPI-compatible) channels - all configurable via register-based peripheral control without external glue logic.
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 | 96 KB code flash (1 KB block size) with security lock and on-chip debug |
| Data Flash | 4 KB background rewrite-capable memory rated for 1M cycles at VDD = 1.8–5.5 V |
| RAM | 4 KB on-chip SRAM, including dedicated areas for flash library operations |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct interface with 1.8 V, 2.5 V, and 3.3 V peripherals |
| Temperature Range | -40°C to +85°C (Industrial D-grade), validated for continuous operation in sealed enclosures |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial clock output/input for CSI or I²C master/slave |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART0 RX / Debug RX / I²C Data | Shared serial data path enabling tool communication, peripheral bridging, and dual-protocol I/O |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI Output / UART0 TX / Debug TX / I²C Data | Enables full-duplex UART debugging while simultaneously serving as I²C bidirectional data line |
| P13/INTP0/TOOL0 | Port 13 / External Interrupt 0 / Debug Interface | Dedicated hardware interrupt input with configurable edge detection and debug session trigger capability |
| P14/INTP1/TOOL1 | Port 14 / External Interrupt 1 / Debug Interface | Secondary interrupt source synchronized to debug state transitions for trace-triggered capture |
| P20/ANI0/AVREFP | Port 20 / Analog Input 0 / ADC Reference Positive | Analog input channel with selectable internal reference voltage or external AVREFP biasing |
| P21/ANI1/AVREFM | Port 21 / Analog Input 1 / ADC Reference Negative | Provides differential ADC measurement capability when paired with P20 and internal 1.45 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical current draw with RTC and LVD active - enables >10-year coin-cell operation in metering |
| Background data flash rewrite | Execute code from program memory while updating 4 KB data flash - no application interruption required |
| Multi-protocol serial interface | Single pin set supports UART, LIN, I²C, and CSI - reduces PCB routing complexity and BOM count |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external RTC IC and backup battery |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control and sensor fusion |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Residential electricity meter with tamper detection, pulse counting, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, real-time tariff calculation, and LIN/UART-based firmware updates. Use Value: Integrated 10-bit ADC with 26 channels and internal temperature sensor enable direct analog front-end interfacing without external signal conditioning. |
Use Scenario: Wireless vibration sensor node monitoring pump health in HVAC systems with local data logging. IC Role / Device Role / Timing Role: Low-power acquisition controller triggering wake-up on threshold events, performing FFT preprocessing, and buffering data to external EEPROM. Use Value: SNOOZE mode allows periodic ADC sampling and processing at <10 μA average current, extending battery life beyond 5 years. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main board requiring motor phase control, water level sensing, and user interface management. IC Role / Device Role / Timing Role: Real-time motor timing generator using 16-bit timer array and PWM outputs, coordinated with touch-key interrupt handling. Use Value: On-chip key interrupt function detects button presses without polling, reducing CPU load and power consumption during idle states. |
Use Scenario: DIN-rail mounted HVAC controller with Modbus RTU over RS-485 and local display interface. IC Role / Device Role / Timing Role: Protocol bridge between RS-485 physical layer and internal CAN/LIN bus for actuator coordination. Use Value: Dual UART channels support simultaneous Modbus master/slave operation and debug console access without multiplexing delays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FGAFP#X0 | 128 KB flash, 8 KB data flash, 12 KB RAM - same package and peripheral set | Required for larger firmware images or extended data logging buffers | Select when application firmware exceeds 96 KB or requires >4 KB persistent parameter storage |
| R5F101FFAFP#X0 | No data flash (0 KB), identical code flash (96 KB), RAM (4 KB), and peripherals | Suitable where firmware updates occur only via external host, not field self-programming | Choose to reduce cost and simplify qualification when background data flash rewrite is unnecessary |
Compared with R5F100FFAFP#X0, R5F100FGAFP#X0 provides scalable nonvolatile storage headroom, while R5F101FFAFP#X0 removes data flash circuitry to lower unit cost - both retain identical pinout, timing, and peripheral compatibility for drop-in layout reuse.
Availability
R5F100FFAFP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply across multi-year production cycles.
Supply support for R5F100FFAFP#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 solutions for industrial, automotive, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded systems requiring integrated analog peripherals and robust firmware update capability.
FAQ
What is the maximum operating frequency of the R5F100FFAFP#X0?
The R5F100FFAFP#X0 operates up to 32 MHz using its high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C. At this frequency, it achieves 41 DMIPS performance while maintaining 66 μA/MHz active current consumption - verified in Renesas R01DS0131EJ0380 Rev.3.80.
Does the R5F100FFAFP#X0 support in-system programming via UART?
Yes, the R5F100FFAFP#X0 supports in-system programming (ISP) through UART0 using Renesas Flash Development Toolkit (FDT) and standard bootloader protocol. This enables field firmware updates without JTAG debugger hardware - confirmed in Section 24.3 "Boot Swap Function" of the R5F100FFAFP#X0 datasheet.
What is the purpose of the SNOOZE mode in the R5F100FFAFP#X0?
SNOOZE mode in the R5F100FFAFP#X0 allows selective peripheral operation (e.g., ADC conversion, UART receive) while the CPU remains halted, reducing power to ~1.2 μA typical. It is used for periodic sensor sampling in battery-powered devices - detailed in Section 10.3.2 of the R5F100FFAFP#X0 datasheet.
Can the R5F100FFAFP#X0 drive an LCD directly?
No, the R5F100FFAFP#X0 does not integrate an LCD controller or segment drivers. It lacks dedicated LCD voltage bias generation, COM/SEG pin mapping, or static/dynamic drive capability - unlike RL78/L12 or RL78/F14 families. External LCD driver ICs or segment-mapped GPIO must be used.
Is the R5F100FFAFP#X0 pin-compatible with other RL78/G13 44-pin variants?
Yes, all RL78/G13 44-pin LQFP variants - including R5F100FAAFP#X0 through R5F100FLAFP#X0 - share identical pinout, electrical characteristics, and package dimensions (PLQP0044GC-A). This enables seamless migration across memory configurations without PCB redesign.
R5F100FFAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Bulk
- 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:
- 31
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100FFAFP#X0 FAQ
1.How can I place an order for R5F100FFAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100FFAFP#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 R5F100FFAFP#X0 reliable?
The price and inventory of R5F100FFAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100FFAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F100FFAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100FFAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100FFAFP#X0?
R5F100FFAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100FFAFP#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 R5F100FFAFP#X0?
For technical support, including R5F100FFAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100FFAFP#X0 requirements.
6.How does Aetrix verify that R5F100FFAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100FFAFP#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 R5F100FFAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F100FFAFP#X0?
All R5F100FFAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100FFAFP#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 R5F100FFAFP#X0 part is unused and in its original packaging.
Return procedure for R5F100FFAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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