Renesas R5F100FLAFP#X0
- Part No.:
- R5F100FLAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F100FLAFP#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,084
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Product details
Overview
R5F100FLAFP#X0 from Renesas is a 44-pin LQFP-44, 32-bit RL78/G13 microcontroller with 96 KB flash, 8 KB data flash, 8 KB RAM, and integrated peripherals including 10-bit ADC (26 channels), RTC, UART, I²C, SPI, and 16-bit timers. It operates from 1.6 V to 5.5 V and supports industrial temperature range (−40°C to +85°C), targeting low-power embedded control in sensor nodes and appliance subsystems.
For engineers reviewing the R5F100FLAFP#X0 datasheet, R5F100FLAFP#X0 pinout, R5F100FLAFP#X0 application, or R5F100FLAFP#X0 equivalent, key selection criteria include its 96 KB code flash with self-programming, 8 KB data flash with background operation (BGO), ultra-low power HALT/STOP/SNOOZE modes (0.57 μA RTC+LVD), and 44-pin LQFP package with 34 general-purpose I/O pins.
Technical Context
The R5F100FLAFP#X0 implements the RL78 CPU core - a CISC architecture with 3-stage pipeline and variable instruction timing (0.03125 μs at 32 MHz to 30.5 μs at 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (selectable 1–32 MHz), DMA controller (4 channels), and multiply-accumulate unit for 16×16→32-bit operations.
Its peripheral set includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, real-time clock with calendar/alarm/correction, and multiple serial interfaces: up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, and 8 CSI (SPI-compatible) channels - all configurable via dedicated SFRs and interrupt vectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 32-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 96 KB code flash with 1 KB block erase, security lock, and boot swap function |
| Data Flash | 8 KB with background operation (BGO), 1M write cycles, VDD = 1.8–5.5 V |
| RAM | 8 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic systems |
| Operating Temp | −40°C to +85°C (Industrial grade D variant), qualified per AEC-Q100 Class 3 |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE - reduces active power in duty-cycled sensing |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports single-supply operation |
| P10/P11 | SCK00/SI00/RxD0/TOOLRxD/SDA00 | Multi-function port supporting SPI clock, SPI input, UART receive, debug RX, and I²C data - enables shared debug/comm lines |
| P20–P22 | ANI0–ANI2 (ADC inputs) | Analog input channels with AVREFP/AVREFM reference pins - allows ratiometric or absolute voltage measurement |
| P147 | ANI18 | Additional ADC channel routed to dedicated pin - expands analog monitoring without multiplexing overhead |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD reset outputs |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy; optional internal oscillator fallback |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC and LVD active - enables multi-year battery life in metering and sensor endpoints |
| Background data flash rewrite | Execute code from flash while rewriting data flash - eliminates firmware stalls during field updates |
| On-chip debug interface | Fully integrated with Renesas E2 studio and CS+ - no external debugger required for development |
| Different-potential I/O | Supports 1.8 V/2.5 V/3.3 V device interfacing without level shifters - simplifies mixed-voltage system design |
| Hardware CRC calculator | Accelerates checksum generation for firmware integrity verification - reduces CPU load in secure boot flows |
Applications
| Smart Home Sensor Hub | Industrial Motor Control Panel |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple wireless sensors before forwarding via UART to gateway. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion, local decision logic, and UART-to-USB bridge firmware. Use Value: 26-channel ADC and 10-bit resolution enable simultaneous analog reads; 8 KB data flash stores calibration coefficients and event logs with BGO. | Use Scenario: Front-panel controller managing LED indicators, push-button inputs, and RS-485 communication with motor drive ICs. IC Role / Device Role / Timing Role: Dedicated UI processor handling HMI, fault reporting, and non-critical timing tasks offloaded from main motor controller. Use Value: 34 GPIOs support matrix keypad and discrete LEDs; STOP mode extends panel standby life; UART/LIN handles diagnostics traffic. |
| White Goods Appliance Subsystem | Energy Monitoring Meter |
Use Scenario: Secondary controller in refrigerator or washing machine managing door latch, water valve, and display backlight sequencing. IC Role / Device Role / Timing Role: Real-time sequencer coordinating actuator timing and safety interlocks using 16-bit timers and PWM outputs. Use Value: HALT mode reduces idle power; on-chip RTC schedules defrost cycles; 96 KB flash accommodates feature-rich UI firmware. | Use Scenario: AC energy meter measuring voltage/current via shunt/sensor, computing kWh, and storing billing data locally. IC Role / Device Role / Timing Role: Data acquisition and storage engine performing ADC sampling, RMS calculation, and secure data logging. Use Value: 10-bit ADC with internal reference ensures consistent scaling; 8 KB data flash retains 30+ days of interval data with 1M write endurance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101FLAFP#X0 | No data flash (0 KB); identical core, peripherals, and package | Not suitable where field-upgradable parameter storage or firmware patching is required | Select when data retention needs are met by external EEPROM or when cost reduction outweighs data flash utility |
| RL78/G14 R5F104GLAFP#X0 | Higher flash (128 KB), larger RAM (16 KB), added CAN interface and enhanced ADC (12-bit) | Required for CAN-based industrial networks or higher-resolution analog acquisition | Choose when CAN bus integration or extended memory headroom justifies migration and PCB layout change |
Compared with R5F100FLAFP#X0, R5F101FLAFP#X0 removes data flash but maintains full pin and code compatibility - ideal for cost-sensitive fixed-parameter designs; R5F104GLAFP#X0 adds CAN and memory but requires hardware revision - best for future-proofed systems needing bus-level interoperability.
Availability
R5F100FLAFP#X0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial HMI panels, and white goods subsystems requiring stable component supply, long-term lifecycle support, and industrial-grade temperature performance.
Supply support for R5F100FLAFP#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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 32-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency of the R5F100FLAFP#X0?
The R5F100FLAFP#X0 supports up to 32 MHz operation using its high-accuracy on-chip oscillator (±1.0% over −20°C to +85°C). External crystals up to 20 MHz can also be used via the CLKP/CLKM pins for precise timing-critical functions like RTC or UART baud generation. The RL78 core achieves 41 DMIPS at this speed.
Does the R5F100FLAFP#X0 include a temperature sensor?
Yes, the R5F100FLAFP#X0 integrates an on-chip temperature sensor usable only in HS (high-speed main) mode. It connects to the 10-bit ADC and provides calibrated output referenced to the internal 1.45 V bandgap voltage - enabling ambient temperature monitoring without external components in thermal management applications.
Can the R5F100FLAFP#X0 perform flash self-programming during runtime?
Yes, the R5F100FLAFP#X0 supports self-programming of both code and data flash memory during runtime. Code flash reprogramming uses the flash shield window function for security; data flash supports background operation (BGO), allowing instruction execution from program memory while rewriting - critical for seamless firmware updates and parameter logging.
What debug interface does the R5F100FLAFP#X0 support?
The R5F100FLAFP#X0 includes an on-chip debug interface compatible with Renesas E2 emulator and standard SWD (Serial Wire Debug) protocol. It supports full breakpoint, watchpoint, and memory inspection capabilities via the TOOLRxD/TOOLTxD pins (shared with P11/P12), eliminating need for dedicated debug headers in production designs.
Is the R5F100FLAFP#X0 pin-compatible with other RL78/G13 variants in LQFP-44 package?
Yes, all RL78/G13 devices in the 44-pin LQFP package (e.g., R5F100FAAFP#X0, R5F100FGAFP#X0, R5F101FLAFP#X0) share identical pinouts and electrical characteristics. This allows drop-in replacement across memory variants and data flash configurations - simplifying design reuse and BOM rationalization within the same footprint.
R5F100FLAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-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:
- 31
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K 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:
R5F100FLAFP#X0 FAQ
1.How can I place an order for R5F100FLAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100FLAFP#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 R5F100FLAFP#X0 reliable?
The price and inventory of R5F100FLAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100FLAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F100FLAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100FLAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100FLAFP#X0?
R5F100FLAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100FLAFP#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 R5F100FLAFP#X0?
For technical support, including R5F100FLAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100FLAFP#X0 requirements.
6.How does Aetrix verify that R5F100FLAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100FLAFP#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 R5F100FLAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F100FLAFP#X0?
All R5F100FLAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100FLAFP#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 R5F100FLAFP#X0 part is unused and in its original packaging.
Return procedure for R5F100FLAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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