Renesas R5F100GCDFB#X0
- Part No.:
- R5F100GCDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GCDFB#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GCDFB#X0 from Renesas is a 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 10-bit ADC (26 channels), real-time clock, and ultra-low-power operation (0.57 μA in RTC+LVD mode). It targets battery-powered industrial sensors and smart metering interfaces requiring long-life embedded control.
For engineers reviewing the R5F100GCDFB#X0 datasheet, R5F100GCDFB#X0 pinout, R5F100GCDFB#X0 application, or R5F100GCDFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5mm package, -40°C to +85°C industrial temperature grade (D), integrated data flash with background operation, and support for LIN-bus UART and hardware DMA across 4 channels.
Technical Context
The R5F100GCDFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (@32 MHz) to 30.5 μs (@32.768 kHz). It integrates dual-clock domains: high-speed on-chip oscillator (selectable 1–32 MHz, ±1.0% accuracy) and dedicated low-speed oscillator for RTC/watchdog.
Its peripheral set includes up to 16× 16-bit timers, 3× I²C/Simplified I²C channels, 2–4× UART/LIN interfaces, 2–8× CSI/SPI channels, and a 12-bit interval timer - all configurable via register-based control without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code footprint. |
| Flash Memory | 128 KB code flash + 8 KB data flash; supports background rewriting (BGO) and 1M-cycle endurance for firmware/data logging. |
| RAM | 12 KB on-chip RAM; sufficient for RTOS stacks, protocol buffers, and sensor fusion algorithms. |
| ADC | 10-bit resolution, 26-channel SAR ADC with internal 1.45 V reference and temperature sensor; eliminates need for external references in environmental monitoring. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active); extends battery life in intermittent-sensing applications. |
| Operating Voltage | 1.6 V to 5.5 V single supply; compatible with coin cells, Li-ion, and industrial 3.3/5 V rails without level-shifting. |
| Temperature Range | -40°C to +85°C (Industrial D-grade); qualified for factory automation and outdoor metering environments. |
Pinout & Package
Package: 48-pin LFQFP (7 × 7 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 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 mixed-voltage I/O (1.8/2.5/3.3 V interface). |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; enables direct connection to legacy logic or sensors. |
| P10–P17 | Multi-function port | Supports SCK00/SCL00 (I²C), SI00/RxD0 (UART), TOOLRxD, SDA00 - simplifies debug and serial communication wiring. |
| P20–P27 | Analog input port | Hosts ANI0–ANI18 (10-bit ADC inputs), AVREFP/AVREFM; allows simultaneous multi-sensor analog acquisition with internal reference. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; ensures reliable startup under brown-out conditions. |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC accuracy; optional high-speed crystal up to 20 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Enables field firmware updates with boot swap and flash shield window - critical for secure over-the-air (OTA) deployments. |
| Background data flash rewrite | Allows concurrent program execution and nonvolatile data logging (e.g., energy usage counters) without CPU stall. |
| Hardware DMA controller | 4-channel DMA moves data between peripherals and RAM in 2 clocks per 8/16-bit transfer - offloads CPU during sensor burst reads or UART streaming. |
| LIN-bus compliant UART | Integrated LIN 2.2 physical layer support in UART mode reduces BOM count and PCB area in automotive body electronics. |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction functions eliminate need for external RTC IC in time-stamped data loggers. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity meter with pulse counting, tariff switching, and tamper detection. IC Role / Device Role / Timing Role: Main controller managing metrology IC interface, EEPROM logging, LCD driver, and IR/RF communication stack. Use Value: Integrated 10-bit ADC (26 ch), data flash BGO, and RTC enable accurate energy accumulation and time-of-use billing without external components. | Use Scenario: Wireless vibration/temperature node in predictive maintenance system. IC Role / Device Role / Timing Role: Edge processor acquiring analog sensor data, performing FFT preprocessing, and triggering BLE/Wi-Fi transmission. Use Value: Ultra-low STOP-mode current (0.57 μA) extends 10-year battery life; hardware DMA accelerates sensor data movement to RAM for real-time analysis. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating PWM motor control, touch sensing, and display refresh via integrated peripherals. Use Value: 16× 16-bit timers support precise motor phase control; multi-voltage I/O simplifies integration with 3.3 V touch controller and 5 V solenoid drivers. | Use Scenario: HVAC control panel with thermostat, fan speed regulation, and Modbus RTU gateway. IC Role / Device Role / Timing Role: Protocol bridge translating sensor inputs and actuator commands between local analog/digital I/O and RS-485 Modbus network. Use Value: Dual UARTs with LIN support allow native Modbus RTU and proprietary HVAC bus protocols; 128 KB flash accommodates dual firmware images for fail-safe updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GCGFB#X0 | Same flash/RAM/peripherals but rated for -40°C to +105°C (G-grade); higher thermal margin. | Suitable for under-hood automotive or high-ambient industrial enclosures where >85°C operation occurs. | Select when ambient exceeds +85°C; otherwise identical software/hardware compatibility. |
| R5F101GCDFB#X0 | Identical package and pinout but lacks data flash (0 KB); retains same code flash and RAM. | Applicable where nonvolatile parameter storage is handled externally or not required (e.g., simple motor control). | Choose to reduce cost if data logging or field updates are unnecessary; no PCB change needed. |
Compared with R5F100GCDFB#X0, the G-grade alternative offers extended temperature resilience at no functional trade-off, while the R5F101 variant removes data flash to lower unit cost - enabling tiered product variants without layout redesign.
Availability
R5F100GCDFB#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply across multi-year production cycles.
Supply support for R5F100GCDFB#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 delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications demanding high integration and long-term reliability.
FAQ
What is the maximum operating frequency of the R5F100GCDFB#X0?
The R5F100GCDFB#X0 supports up to 32 MHz operation using its high-speed on-chip oscillator, delivering 41 DMIPS performance. The oscillator accuracy is ±1.0% over VDD = 1.8–5.5 V and TA = -20 to +85°C. External crystals up to 20 MHz may also be used for enhanced timing precision in the R5F100GCDFB#X0 design.
Does the R5F100GCDFB#X0 include a hardware real-time clock (RTC)?
Yes, the R5F100GCDFB#X0 integrates a full-featured RTC with calendar support (99 years), alarm function, and clock correction capability. It operates independently in STOP mode using the 32.768 kHz subsystem clock, consuming only 0.57 μA - enabling time-stamped data logging in battery-powered R5F100GCDFB#X0 applications.
How many analog-to-digital converter (ADC) channels does the R5F100GCDFB#X0 support?
The R5F100GCDFB#X0 features a 10-bit successive approximation ADC with up to 26 input channels (ANI0–ANI18), including dedicated AVREFP/AVREFM pins. It provides an internal 1.45 V reference voltage and integrated temperature sensor - all usable without external components in R5F100GCDFB#X0 sensor interface designs.
Is the R5F100GCDFB#X0 pin-compatible with other RL78/G13 devices in 48-pin LFQFP packages?
Yes, the R5F100GCDFB#X0 shares identical pinout and package (48-pin LFQFP, 0.5-mm pitch) with all other RL78/G13 variants in the FB suffix family (e.g., R5F100GCAFB#X0, R5F100GGDFB#X0). This enables seamless migration between memory/configurations without PCB revision in R5F100GCDFB#X0-based platforms.
What debug and programming interfaces are supported by the R5F100GCDFB#X0?
The R5F100GCDFB#X0 supports on-chip debugging via the single-wire debug interface (SWD) using the TOOLRxD pin (P11), compatible with Renesas E2 emulator and CS+ IDE. It also includes ROM-based bootloader support for UART-based firmware updates - simplifying production programming and field maintenance of the R5F100GCDFB#X0.
R5F100GCDFB#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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K 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:
R5F100GCDFB#X0 FAQ
1.How can I place an order for R5F100GCDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GCDFB#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 R5F100GCDFB#X0 reliable?
The price and inventory of R5F100GCDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GCDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100GCDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GCDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GCDFB#X0?
R5F100GCDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GCDFB#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 R5F100GCDFB#X0?
For technical support, including R5F100GCDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GCDFB#X0 requirements.
6.How does Aetrix verify that R5F100GCDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100GCDFB#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 R5F100GCDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100GCDFB#X0?
All R5F100GCDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GCDFB#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 R5F100GCDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100GCDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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