Renesas R5F100GFDFB#X0
- Part No.:
- R5F100GFDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GFDFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GFDFB#X0 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, and 12 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), integrated 10-bit ADC (26 channels), and real-time clock with calendar support - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F100GFDFB#X0 datasheet, R5F100GFDFB#X0 pinout, R5F100GFDFB#X0 application, or R5F100GFDFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5 mm pitch package, industrial-grade temperature range (–40°C to +105°C), on-chip debug support, and compatibility with Renesas' RL78 toolchain and e² studio IDE for rapid firmware development and low-power optimization.
Technical Context
The R5F100GFDFB#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 mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, selectable 1–32 MHz) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one real-time clock with calendar/alarm/correction, two to four UART/LIN channels, three to ten I²C/Simplified I²C interfaces, two to eight CSI (SPI-compatible) channels, and DMA controller with 4 channels - all configurable via register-based 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 |
| Max Operating Frequency | 32 MHz (41 DMIPS), with programmable high-speed on-chip oscillator (±1.0% over –40°C to +85°C) |
| Memory Configuration | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 12 KB SRAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Operating Temperature | –40°C to +105°C (industrial G-grade), qualified per AEC-Q100 Class 0 stress test requirements |
| Package & Pin Count | LFQFP-48, 7 mm × 7 mm, 0.5 mm pitch, with 39 general-purpose I/O pins (including N-ch open-drain capable) |
Pinout & Package
Package: LFQFP-48 (7 mm × 7 mm, 0.5 mm pitch), lead-free and RoHS-compliant, rated for industrial temperature operation (–40°C to +105°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domain: VDD powers digital/analog circuits; separate AVDD/AVSS pins available for analog section isolation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P53 | General-purpose I/O ports | 48-pin variant supports 39 GPIOs; configurable as N-ch open-drain (6 V tolerant), TTL input, or with internal pull-up |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits for reliable power-on initialization |
| CLKP, CLKN | External crystal oscillator inputs | Supports 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz for main system clock |
| EXCLK | External clock input | Accepts single-ended CMOS clock source (1–20 MHz) as alternative to crystal, enabling precise clock synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current enables multi-year battery life in metering and remote sensing applications |
| Background data flash rewriting | BGO allows concurrent program execution and 8 KB data flash updates without interrupt latency penalty |
| On-chip debug interface | Fully compliant with Renesas E1/E20 emulators; supports real-time trace, breakpoints, and memory inspection |
| Integrated RTC with calendar | 99-year calendar, alarm, and auto-correction eliminates need for external timekeeping ICs in HMI and logging systems |
| Multi-protocol serial interfaces | Hardware UART/LIN + I²C + CSI enables simultaneous communication with sensors, displays, and CAN transceivers (via LIN gateway) |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop speed and position control of BLDC fans and pumps in HVAC systems. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, PWM generation, and fault monitoring via ADC and comparator inputs. Use Value: 32 MHz CPU + 8× 16-bit timers enable precise 20 kHz PWM carrier generation with dead-time insertion and synchronous ADC sampling. |
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Primary metrology controller managing pulse counting, LCD drive, RTC-based billing intervals, and secure data storage. Use Value: Integrated 10-bit ADC (26 ch), 8 KB data flash (1M write cycles), and RTC calendar ensure accurate energy accumulation and long-term firmware/data integrity. |
| Wireless Sensor Node | Automotive Body Control Module |
|
Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity via sub-GHz RF link. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor acquisition, sleep/wake scheduling, and SPI interface to RF transceiver. Use Value: 0.57 μA STOP mode with RTC wake-up and fast 32 MHz wake-from-halt (<1.5 μs) minimize average current draw to <5 μA per measurement cycle. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication. IC Role / Device Role / Timing Role: LIN slave node processor handling switch debouncing, motor driver control, and diagnostic reporting. Use Value: On-chip LIN-capable UART, 12-bit interval timer for precise bit timing, and –40°C to +105°C rating meet automotive body electronics requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101GFDFB#X0 | No data flash (0 KB); identical core, peripherals, and package; reduced memory footprint | Suitable where firmware updates or parameter storage are handled externally or not required | Select when cost-sensitive designs omit non-volatile parameter storage and rely on external EEPROM or cloud configuration |
| RL78/G14 R5F104GKDFB#X0 | Enhanced RL78/G14 core; 256 KB flash, 32 KB RAM, additional 12-bit ADC channel, and higher max frequency (48 MHz) | Required for complex GUI-driven HMIs or multi-sensor fusion with larger buffer needs | Choose for future-proofing or when migrating from G13 to G14 for increased performance headroom and extended peripheral feature set |
Compared with R5F100GFDFB#X0, R5F101GFDFB#X0 reduces BOM cost by eliminating data flash while retaining full functional compatibility for fixed-parameter systems; R5F104GKDFB#X0 delivers 2× flash and RAM plus higher clock rate, enabling richer firmware features but requiring PCB layout review due to different pin mapping.
Availability
R5F100GFDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, wireless sensor nodes, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F100GFDFB#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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained applications where reliability, code efficiency, and toolchain maturity are critical.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F100GFDFB#X0?
The R5F100GFDFB#X0 operates at up to 32 MHz with a measured performance of 41 DMIPS. This rating is achieved using the high-speed on-chip oscillator with no external components required, and the core maintains full peripheral functionality at this speed, including ADC sampling, UART transmission, and timer-based PWM generation.
Does R5F100GFDFB#X0 support in-system programming and secure firmware updates?
Yes, R5F100GFDFB#X0 supports self-programming of both code and data flash memory with boot swap and flash shield window functions. These features enable field firmware updates with rollback capability and protection against unauthorized reprogramming, meeting IEC 62443-3-3 SL2 security requirements for industrial firmware integrity.
What are the supported low-power modes and their typical current consumption for R5F100GFDFB#X0?
R5F100GFDFB#X0 supports HALT (1.2 μA), STOP (0.57 μA with RTC + LVD), and SNOOZE modes. In STOP mode, the device retains RAM and register contents while disabling CPU and most peripherals, waking via RTC alarm, external interrupt, or LVD threshold crossing - validated across –40°C to +105°C.
Can R5F100GFDFB#X0 interface directly with 3.3 V or 1.8 V peripherals?
Yes, R5F100GFDFB#X0 supports different-potential interface operation: selected I/O ports tolerate 1.8 V, 2.5 V, or 3.3 V logic levels when configured with appropriate drive strength and input buffer settings. This eliminates level-shifter components when connecting to low-voltage sensors or communication ICs.
What debug and development tools are officially supported for R5F100GFDFB#X0?
R5F100GFDFB#X0 is fully supported by Renesas E1 and E20 debug emulators, e² studio IDE (v2023-10+), CS+ for CC compiler, and the Renesas Flash Programmer. Hardware debug features include real-time trace, hardware breakpoints, memory watchpoints, and SWD/JTAG interface compliance per ARM CoreSight standards.
R5F100GFDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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:
R5F100GFDFB#X0 FAQ
1.How can I place an order for R5F100GFDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GFDFB#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 R5F100GFDFB#X0 reliable?
The price and inventory of R5F100GFDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GFDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100GFDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GFDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GFDFB#X0?
R5F100GFDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GFDFB#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 R5F100GFDFB#X0?
For technical support, including R5F100GFDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GFDFB#X0 requirements.
6.How does Aetrix verify that R5F100GFDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100GFDFB#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 R5F100GFDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100GFDFB#X0?
All R5F100GFDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GFDFB#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 R5F100GFDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100GFDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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