Renesas R5F100GJGFB#X0
- Part No.:
- R5F100GJGFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F100GJGFB#X0.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100GJGFB#X0 from Renesas is a 48-pin LFQFP-packaged 16-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, and industrial-grade operation up to +105°C. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (0.57 μA in RTC+LVD mode), and integrates 10-bit ADC (26 channels), real-time clock, UART/SPI/I²C interfaces, and DMA for embedded control in battery-powered and industrial systems.
For engineers reviewing the R5F100GJGFB#X0 datasheet, R5F100GJGFB#X0 pinout, R5F100GJGFB#X0 application, or R5F100GJGFB#X0 equivalent, key selection criteria include its 48-pin LFQFP-0.5mm pitch package, G-grade temperature range (−40°C to +105°C), integrated data flash with background operation, and RL78 CPU core's 3-stage pipeline with variable instruction timing (0.03125–30.5 μs).
Technical Context
The R5F100GJGFB#X0 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline and configurable instruction timing across high-speed (32 MHz) and ultra-low-speed (32.768 kHz) clocks. It features dual power domains enabling independent operation of RTC and LVD during STOP mode.
Its peripheral set includes a 10-bit A/D converter with 26 input channels and internal 1.45 V reference, 8-channel 16-bit timers, 3–10 I²C/Simplified I²C channels, and 2–4 UART/LIN-capable serial interfaces-all accessible via dedicated SFRs and supported by hardware DMA (2/4 channels) for zero-CPU-overhead data transfers between memory and peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 μs) |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS for deterministic real-time control loops |
| Memory | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 12 KB RAM |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE - enables multi-year battery life |
| Analog Peripherals | 10-bit A/D converter with 26 channels, internal 1.45 V reference, and on-chip temperature sensor |
| Serial Interfaces | Up to 4 UART/LIN, 8 CSI (SPI-compatible), and 10 I²C/Simplified I²C channels - supports mixed-protocol sensor and actuator networks |
| Operating Temperature | −40°C to +105°C (G-grade) - qualified for under-hood automotive and industrial motor control environments |
Pinout & Package
Package: 48-pin LFQFP (7 mm × 7 mm, 0.5 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 1.6–5.5 V single-supply operation |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P47, P50–P53 | General-purpose I/O ports | 48 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or with on-chip pull-up - enables direct interfacing with 1.8/2.5/3.3 V logic |
| P20/P21/P22/P147 | Analog inputs (ANI0–ANI2, ANI18) | Four dedicated analog input pins mapped to 10-bit ADC - supports simultaneous sampling of multiple sensors without external mux |
| P10/P11/P12/P13 | SPI/I²C/UART shared pins (SCK00/SCL00/SI00/RxD0) | Multi-function serial interface pins reduce PCB routing complexity; hardware-peripheral arbitration prevents bus conflicts |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits - eliminates need for discrete reset IC |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window functions enable secure firmware updates in field-deployed devices without external programmer |
| Background data flash operation | Allows full CPU execution from program memory while rewriting data flash - critical for logging and parameter storage during runtime |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external RTC chip in time-stamped data acquisition |
| Hardware DMA controller | 2–4 channels with 2-clock transfer latency between SFR and RAM - offloads CPU from high-bandwidth peripheral data movement |
| Ultra-low-power STOP mode | 0.57 μA current draw with RTC and LVD active - extends battery life in always-on monitoring applications beyond 10 years |
| On-chip voltage detector (LVD) | 14-level selectable threshold with interrupt/reset options - provides programmable brown-out protection without external supervisor IC |
Applications
| Smart Energy Meters | Industrial Motor Drives |
|---|---|
|
Use Scenario: Three-phase electricity meter with tariff switching, tamper detection, and wireless communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, EEPROM-based tariff tables, and UART-connected NB-IoT modem. Use Value: Integrated 10-bit ADC with 26 channels and background data flash enable concurrent energy measurement and secure firmware update over cellular link. |
Use Scenario: Closed-loop BLDC motor control in HVAC compressors with thermal monitoring and fault logging. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithm, reading hall sensors/temperature, and driving gate drivers via PWM outputs. Use Value: 41 DMIPS at 32 MHz and 8-channel 16-bit timers provide precise PWM generation and fast current-loop response; G-grade temp rating ensures reliability at 105°C ambient. |
| Home Appliance Control Panels | Medical Portable Monitors |
|
Use Scenario: Touch-enabled washing machine UI with LED indicators, buzzer feedback, and load-sensing ADC. IC Role / Device Role / Timing Role: Human interface processor handling capacitive touch scanning, buzzer tone generation, and analog front-end for water level/temperature sensing. Use Value: On-chip buzzer output controller and key interrupt function reduce BOM count; ultra-low-power STOP mode extends standby battery life. |
Use Scenario: Battery-powered pulse oximeter with SpO₂ sensor, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Signal acquisition and processing unit digitizing photodiode signals, computing saturation values, and managing BLE advertising packets. Use Value: 0.57 μA STOP mode with RTC allows periodic wake-up for measurements; integrated 1.45 V reference ensures consistent ADC accuracy across battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GJGFB#V0 | Identical silicon, but packaged in tray (LFQFP) instead of embossed tape; same 48-pin LFQFP-0.5mm, G-grade, 128 KB/8 KB/12 KB memory config | No functional difference; selected for manual prototyping or low-volume assembly where tape-and-reel is unnecessary | Choose #V0 for engineering samples or small-batch builds; #X0 preferred for automated SMT lines requiring tape feed |
| R5F101GJGFB#X0 | Omits data flash (0 KB); retains same 128 KB code flash, 12 KB RAM, peripherals, and G-grade temp rating | Suitable where firmware-only storage is sufficient; eliminates background data flash overhead and simplifies flash management firmware | Select when persistent parameter storage is handled externally or not required; reduces cost and flash write wear concerns |
Compared with R5F100GJGFB#X0, the #V0 variant offers identical functionality with different packaging logistics, while R5F101GJGFB#X0 removes data flash to lower cost and simplify firmware design-making it optimal for fixed-parameter deployments where in-field reconfiguration isn't needed.
Availability
R5F100GJGFB#X0 is available at Aetrix Electronics and suitable for smart energy meters, industrial motor drives, home appliance control panels, and portable medical monitors requiring stable component supply across extended product lifecycles.
Supply support for R5F100GJGFB#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 automotive, industrial, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for battery-operated and thermally constrained systems.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100GJGFB#X0?
The R5F100GJGFB#X0 operates at up to 32 MHz, delivering 41 DMIPS of processing performance. This speed is achieved using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and −20°C to +85°C. The RL78 CPU core's 3-stage pipeline enables deterministic execution for real-time control tasks in the R5F100GJGFB#X0.
Does the R5F100GJGFB#X0 support in-system programming and secure firmware updates?
Yes, the R5F100GJGFB#X0 supports full in-system programming via its on-chip debug interface and includes boot swap functionality plus a flash shield window to prevent unauthorized access to protected code regions. These features allow safe, field-upgradable firmware deployment without requiring external programmers - a core capability of the R5F100GJGFB#X0.
What analog capabilities does the R5F100GJGFB#X0 provide for sensor interfacing?
The R5F100GJGFB#X0 integrates a 10-bit A/D converter with up to 26 input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. It supports simultaneous sampling and conversion across multiple channels, enabling direct connection of resistive, capacitive, or thermistor-based sensors without external signal conditioning - a key advantage of the R5F100GJGFB#X0 in sensor-rich designs.
How does the R5F100GJGFB#X0 achieve ultra-low-power operation in battery-powered applications?
The R5F100GJGFB#X0 achieves ultra-low-power operation through multiple hardware-optimized modes: HALT (66 μA/MHz), STOP (0.57 μA with RTC and LVD active), and SNOOZE. Its 1.6–5.5 V wide supply range, on-chip POR/LVD, and ability to retain RAM and RTC state in STOP mode enable multi-year battery life in applications like remote sensors and portable monitors - a defining feature of the R5F100GJGFB#X0.
Is the R5F100GJGFB#X0 pin-compatible with other RL78/G13 variants in the same package?
Yes, all RL78/G13 devices in the 48-pin LFQFP-0.5mm package - including R5F100GJGFB#X0, R5F100GJAFB#X0, and R5F101GJGFB#X0 - share identical pinouts and electrical characteristics. This allows seamless migration between memory/configurations without PCB redesign, provided peripheral usage aligns with the target variant's feature set - a verified compatibility of the R5F100GJGFB#X0.
R5F100GJGFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100GJGFB#X0 FAQ
1.How can I place an order for R5F100GJGFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GJGFB#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 R5F100GJGFB#X0 reliable?
The price and inventory of R5F100GJGFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GJGFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100GJGFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GJGFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GJGFB#X0?
R5F100GJGFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GJGFB#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 R5F100GJGFB#X0?
For technical support, including R5F100GJGFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GJGFB#X0 requirements.
6.How does Aetrix verify that R5F100GJGFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100GJGFB#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 R5F100GJGFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100GJGFB#X0?
All R5F100GJGFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GJGFB#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 R5F100GJGFB#X0 part is unused and in its original packaging.
Return procedure for R5F100GJGFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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