Renesas R5F100PFAFA#V0
- Part No.:
- R5F100PFAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F100PFAFA#V0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100PFAFA#V0 from Renesas is a 100-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 128 KB flash memory, 12 KB RAM, and integrated data flash (8 KB), operating at up to 32 MHz with 41 DMIPS performance and ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode). It targets battery-powered industrial control panels requiring real-time clock, analog sensing, and LIN/UART communication.
For engineers reviewing the R5F100PFAFA#V0 datasheet, R5F100PFAFA#V0 pinout, R5F100PFAFA#V0 application, or R5F100PFAFA#V0 equivalent, key selection criteria include its 100-pin LQFP package, 128 KB code flash with self-programming, 10-bit 26-channel ADC, dual UART/LIN support, and -40°C to +85°C industrial temperature grade.
Technical Context
The R5F100PFAFA#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting variable instruction execution time from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz). It integrates a 12-bit interval timer, calendar-based real-time clock with alarm and correction, and watchdog timer with dedicated low-speed oscillator.
Its peripheral set includes up to 16× 16-bit timers, 3–10× I²C/Simplified I²C channels, 2–4× UART/LIN interfaces, 2–8× CSI (SPI-compatible) channels, and DMA controller with 4 channels - all optimized for deterministic response in sensor fusion and motor control edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 128 KB code flash with 1 KB block erase, security lock, and boot swap function |
| Data Flash | 8 KB background operation (BGO) capable, 1M rewrite cycles, VDD = 1.8–5.5 V |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library use (FF300H) |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Power Modes | HALT (0.57 μA), STOP (0.94 μA), SNOOZE - all with RTC + LVD active |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct Li-ion or 3.3 V/5 V system integration |
| Temperature Range | -40°C to +85°C (Industrial A-grade), qualified per JEDEC JESD22-A108 |
Pinout & Package
Package: 100-pin LQFP (14 × 20 mm, 0.65 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / SCL00 | Serial clock for CSI0 or I²C0 master/slave; shared pin enables flexible interface routing |
| P11 | SI00 / RxD0 / TOOLRxD / SDA00 | Multi-function pin supporting SPI input, UART receive, debug RX, or I²C data - reduces external logic |
| P12 | SO00 / TxD0 / TOOLTxD / SCL00 | Shared output for SPI, UART transmit, debug TX, or I²C clock - simplifies board layout |
| P20 | ANI0 / AVREFP | Analog input channel 0 with positive reference voltage input - enables ratiometric sensor measurement |
| P21 | ANI1 / AVREFM | Analog input channel 1 with negative reference voltage input - supports differential ADC configuration |
| P50 | INTP0 / PPG0 / TOOLCLK | Interrupt input, programmable pulse generator output, or debug clock - consolidates timing and event handling |
| VDD | Power Supply | Main 1.6–5.5 V supply; decoupling required per Renesas layout guidelines (R01DS0131EJ0380 §9.2) |
| VSS | GND | Digital ground plane connection; separate analog/digital GND recommended for ADC accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT mode | 0.57 μA typical current draw with RTC and LVD active - extends battery life in always-on monitoring |
| Self-programmable flash | On-the-fly firmware updates via boot swap and flash shield window - enables field upgrades without external programmer |
| Background data flash write | Code execution continues from flash while rewriting 8 KB data flash - eliminates interrupt latency during logging |
| Multi-protocol serial interface | Single pin supports UART, LIN, CSI (SPI), and I²C - reduces pin count and PCB routing complexity |
| Integrated RTC with calendar | 99-year calendar, alarm, and auto-correction - eliminates need for external real-time clock IC |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations - accelerates PID and filtering algorithms |
Applications
| Smart Thermostat Control | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Programmable HVAC thermostat with local display, temperature/humidity sensing, and wireless gateway connectivity. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, UI refresh, LIN bus communication to zone actuators, and RTC-based scheduling. Use Value: Integrated 26-channel ADC and LIN transceiver support eliminate discrete signal conditioning and bus interface ICs, reducing BOM cost by ~$0.85/unit. |
Use Scenario: Compact motor drive module for BLDC fans in factory automation, requiring speed feedback, fault reporting, and parameter tuning. IC Role / Device Role / Timing Role: Real-time motion controller executing commutation logic, reading hall sensors via GPIO/ADC, and transmitting status over UART to PLC. Use Value: 41 DMIPS performance and hardware multiplier enable sub-100 μs loop times for 20 kHz PWM control, meeting IEC 61800-3 EMC timing constraints. |
| Energy Meter Data Logger | Medical Infusion Pump Controller |
|
Use Scenario: DIN-rail mounted electricity meter with tamper detection, kWh accumulation, and RS-485 backhaul to AMI concentrator. IC Role / Device Role / Timing Role: Primary data acquisition and secure logging unit sampling voltage/current transformers, storing intervals in data flash, and managing secure firmware updates. Use Value: 8 KB data flash with 1M rewrite cycles and BGO allows 10-year hourly energy logging without wear-out, satisfying ANSI C12.22 compliance requirements. |
Use Scenario: Portable infusion pump with flow rate control, occlusion detection, battery management, and audible alerts. IC Role / Device Role / Timing Role: Safety-critical controller performing analog pressure sensing, motor current monitoring, buzzer timing, and LVD-triggered shutdown. Use Value: On-chip LVD with 14-level selection and fail-safe HALT mode ensure immediate power-fail response within <10 μs, meeting IEC 62304 Class C software safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PGAFA#V0 | Same 100-pin LQFP package, identical peripherals, but 96 KB flash / 8 KB RAM / 8 KB data flash | Lower memory footprint suits simpler control tasks without extensive data logging or multi-protocol stacks | Select when firmware size < 80 KB and RAM usage < 6 KB to reduce cost without sacrificing pin compatibility |
| R5F101PFAFA#V0 | Same package and pinout, but no data flash (0 KB); retains 128 KB code flash and 12 KB RAM | Eliminates background data logging capability - appropriate for fixed-parameter systems without field-updatable calibration | Choose when data retention is handled externally or via external EEPROM, prioritizing lower unit cost and simplified qualification |
Compared with R5F100PFAFA#V0, R5F100PGAFA#V0 trades flash/RAM capacity for cost reduction in resource-constrained designs, while R5F101PFAFA#V0 removes data flash entirely - enabling simpler firmware validation but requiring external nonvolatile storage for runtime parameters.
Availability
R5F100PFAFA#V0 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, medical infusion pumps, and HVAC control systems requiring stable component supply across multi-year production cycles.
Supply support for R5F100PFAFA#V0 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 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated industrial and consumer devices requiring high integration, robustness, and long-term supply assurance.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100PFAFA#V0?
The R5F100PFAFA#V0 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 μs under these conditions, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation - enabling adaptive power/performance trade-offs in portable applications.
Does the R5F100PFAFA#V0 support in-system programming and secure firmware updates?
Yes, the R5F100PFAFA#V0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality, flash shield window protection, and block-erase prohibition - allowing secure field firmware updates without exposing code or risking corruption during power loss. These features are documented in R01DS0131EJ0380 Sections 1.1 and 24.
How many analog input channels and what ADC resolution does the R5F100PFAFA#V0 provide?
The R5F100PFAFA#V0 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 a calibrated temperature sensor, both accessible only in HS (high-speed main) mode per datasheet Note 2 - enabling accurate ratiometric measurements and thermal compensation without external components.
What serial communication interfaces are available on the R5F100PFAFA#V0?
The R5F100PFAFA#V0 provides up to 4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - with significant pin multiplexing (e.g., P11 supports SI00, RxD0, TOOLRxD, and SDA00). This enables concurrent multi-protocol operation, such as LIN motor control + I²C sensor hub + UART debug, using only 10–12 pins.
Is the R5F100PFAFA#V0 qualified for industrial temperature range and what packaging option does it use?
Yes, the R5F100PFAFA#V0 is rated for -40°C to +85°C operation (Industrial A-grade) and is supplied in a 100-pin LQFP package (14 × 20 mm, 0.65 mm pitch) with tray packaging (#V0 suffix). This package meets IPC/JEDEC standards for reflow soldering and supports automated assembly in high-volume industrial manufacturing environments.
R5F100PFAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 82
- 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 20x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100PFAFA#V0 FAQ
1.How can I place an order for R5F100PFAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100PFAFA#V0 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 R5F100PFAFA#V0 reliable?
The price and inventory of R5F100PFAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100PFAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100PFAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100PFAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100PFAFA#V0?
R5F100PFAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100PFAFA#V0 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 R5F100PFAFA#V0?
For technical support, including R5F100PFAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100PFAFA#V0 requirements.
6.How does Aetrix verify that R5F100PFAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100PFAFA#V0 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 R5F100PFAFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100PFAFA#V0?
All R5F100PFAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100PFAFA#V0, 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 R5F100PFAFA#V0 part is unused and in its original packaging.
Return procedure for R5F100PFAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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