Renesas R5F100GEGNA#U0
- Part No.:
- R5F100GEGNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F100GEGNA#U0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:3,813
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Product details
Overview
R5F100GEGNA#U0 from Renesas is a 48-pin HWQFN-packaged RL78/G13 16-bit microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed (41 DMIPS), and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F100GEGNA#U0 datasheet, R5F100GEGNA#U0 pinout, R5F100GEGNA#U0 application, or R5F100GEGNA#U0 equivalent, key selection criteria include its industrial-grade temperature range (−40°C to +105°C), integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and hardware DMA support for deterministic peripheral handling in resource-constrained embedded systems.
Technical Context
The R5F100GEGNA#U0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It integrates a high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and supports HALT/STOP/SNOOZE low-power modes with fast wake-up.
Peripheral integration includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and correction, 1× watchdog timer, 8–26-channel 10-bit ADC with internal reference and temperature sensor, and serial interfaces: CSI (SPI-like), UART/LIN (up to 4 channels), and I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC 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% accuracy) |
| Memory Configuration | 128 KB code flash (1 KB block size), 8 KB data flash (1M rewrite cycles), 12 KB RAM |
| Power Consumption | 66 μA/MHz active current; 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 qualification) |
| Package & Pin Count | HWQFN-48 (7 × 7 mm, 0.5 mm pitch), 48-pin surface-mount package |
Pinout & Package
Package: HWQFN-48 (7 × 7 mm, 0.5 mm pitch), lead-free, moisture-sensitive level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (1.6–5.5 V core/io), VSS (reference ground) |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; supports key interrupt and clock output |
| P10–P17 | Multi-function port | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD, etc. |
| P20–P27 | Analog input port | ANI0–ANI7 with AVREFP/AVREFM reference pins; enables full 10-bit ADC operation |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA STOP mode enables multi-year battery life in metering and sensor nodes |
| On-chip debug & self-programming | Full on-chip debug interface and flash shield window enable secure field firmware updates |
| Background data flash rewriting | BGO allows concurrent program execution and data flash writes-no CPU stall during logging |
| Hardware DMA controller | 4-channel DMA reduces CPU load for high-throughput peripheral transfers (e.g., ADC → RAM) |
| Integrated RTC with calendar | 99-year calendar, alarm, and automatic clock correction eliminate need for external RTC IC |
| LIN bus support | UART peripherals include LIN 2.2 protocol support for automotive body electronics and industrial networks |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing intervals, and secure flash storage of consumption logs. Use Value: Ultra-low STOP-mode current extends battery life beyond 10 years; integrated RTC eliminates external timekeeping components. |
Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC monitoring. IC Role / Device Role / Timing Role: Sensor fusion hub collecting analog/digital inputs, performing local calibration, and scheduling BLE/LoRa transmissions. Use Value: 26-channel 10-bit ADC with internal reference enables direct connection of multiple sensors without external signal conditioning. |
| Home Appliance Control | Automotive Body Electronics |
Use Scenario: Washing machine/microwave main control board requiring motor drive, UI, and safety monitoring. IC Role / Device Role / Timing Role: Central MCU executing state machines, driving display/LEDs, reading buttons, and managing fault-safe shutdown via LVD. Use Value: 128 KB flash accommodates complex UI logic and safety-certified firmware; 12 KB RAM supports real-time PID control buffers. |
Use Scenario: Door module, seat control, or lighting ECU in passenger vehicles. IC Role / Device Role / Timing Role: LIN-compliant node communicating with central gateway while managing local switches, LEDs, and diagnostics. Use Value: Built-in LIN-capable UART and −40°C to +105°C rating meet AEC-Q100 Grade 2 requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GGANA#U0 | Same package and pinout; identical 128 KB flash but only 4 KB data flash (vs. 8 KB) | Suitable where reduced data logging depth is acceptable (e.g., simpler control loops) | Select when cost sensitivity outweighs need for extended nonvolatile parameter storage |
| R5F101GEGNA#U0 | Same footprint and peripherals, but no data flash memory (0 KB); otherwise identical flash/RAM/performance | Used in fixed-parameter systems where runtime reconfiguration is unnecessary | Choose for cost-optimized designs with static configuration stored in code flash or external EEPROM |
Compared with R5F100GEGNA#U0, R5F100GGANA#U0 trades half the data flash capacity for lower unit cost, while R5F101GEGNA#U0 removes data flash entirely-both retain full pin compatibility and identical industrial temperature rating, making them drop-in alternatives only when data flash usage is not required.
Availability
R5F100GEGNA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering systems, and automotive body electronics requiring stable component supply across extended product lifecycles.
Supply support for R5F100GEGNA#U0 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 infrastructure markets.
The RL78/G13 family is designed for cost-sensitive, ultra-low-power general-purpose embedded applications-emphasizing energy efficiency, integrated peripherals, and seamless migration from legacy 8/16-bit platforms.
FAQ
What is the maximum operating frequency and performance of the R5F100GEGNA#U0?
The R5F100GEGNA#U0 operates at up to 32 MHz with an RL78 CPU core delivering 41 DMIPS. Its high-accuracy on-chip oscillator supports frequencies from 1 MHz to 32 MHz with ±1.0% tolerance over −40°C to +85°C, enabling precise timing without external crystals in many applications. The R5F100GEGNA#U0 achieves this performance while maintaining ultra-low active current (66 μA/MHz).
Does the R5F100GEGNA#U0 support real-time clock functionality with calendar features?
Yes, the R5F100GEGNA#U0 integrates a full-featured real-time clock (RTC) with calendar support for years, months, days, hours, minutes, and seconds; alarm interrupt capability; and automatic clock correction. This eliminates the need for external RTC ICs in time-stamped logging, scheduling, or billing applications-reducing BOM count and PCB area.
What are the low-power modes supported by the R5F100GEGNA#U0, and what is the lowest current draw?
The R5F100GEGNA#U0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it draws just 0.57 μA-enabling decade-long battery operation in remote sensors and utility meters. Wake-up from STOP is under 4 μs, ensuring responsive event handling without sacrificing energy efficiency.
Can the R5F100GEGNA#U0 perform background data flash writes while executing application code?
Yes, the R5F100GEGNA#U0 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting data flash-critical for reliable firmware-over-the-air updates, parameter logging, or calibration storage without system interruption or latency spikes.
Is the R5F100GEGNA#U0 qualified for industrial temperature operation?
Yes, the R5F100GEGNA#U0 carries the 'G' suffix denoting industrial-grade qualification with guaranteed operation from −40°C to +105°C. This makes it suitable for demanding environments such as factory automation, outdoor metering, and under-hood automotive modules where thermal stability and long-term reliability are essential.
R5F100GEGNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-WFQFN Exposed Pad
- 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:
- 34
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 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:
R5F100GEGNA#U0 FAQ
1.How can I place an order for R5F100GEGNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GEGNA#U0 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 R5F100GEGNA#U0 reliable?
The price and inventory of R5F100GEGNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GEGNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100GEGNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GEGNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GEGNA#U0?
R5F100GEGNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GEGNA#U0 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 R5F100GEGNA#U0?
For technical support, including R5F100GEGNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GEGNA#U0 requirements.
6.How does Aetrix verify that R5F100GEGNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100GEGNA#U0 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 R5F100GEGNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F100GEGNA#U0?
All R5F100GEGNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GEGNA#U0, 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 R5F100GEGNA#U0 part is unused and in its original packaging.
Return procedure for R5F100GEGNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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