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Renesas R5F100GHGNA#U0
- Part No.:
- R5F100GHGNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F100GHGNA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,415
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Product details
Overview
R5F100GHGNA#U0 from Renesas is a 48-pin, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 1.6–5.5 V supply, and integrated 32 MHz high-accuracy on-chip oscillator (±1.0%). It targets battery-powered industrial sensors and smart metering interfaces requiring long runtime and reliable real-time control.
For engineers reviewing the R5F100GHGNA#U0 datasheet, R5F100GHGNA#U0 pinout, R5F100GHGNA#U0 application, or R5F100GHGNA#U0 equivalent, key selection criteria include its HWQFN-48 package with 0.5 mm pitch, industrial-grade –40°C to +105°C operation (G-grade), 10-bit 26-channel ADC, dual UART/LIN support, and hardware BGO-capable data flash for background firmware updates.
Technical Context
The R5F100GHGNA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory subsystem includes 128 KB code flash (1 KB block size), 8 KB data flash with 1M rewrite cycles, and 12 KB SRAM - all accessible under single-supply 1.6–5.5 V operation.
Peripheral integration includes 16× 16-bit timers, 1× real-time clock with calendar/alarm, 1× watchdog timer, 2–4 channel DMA, 3–10 channel I²C/Simplified I²C, 2–4 channel UART/LIN, and 2–8 channel CSI (SPI-compatible serial interface), enabling deterministic timing and multi-protocol connectivity in compact embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and variable-speed instruction execution (0.03125–30.5 μs) |
| Flash Memory | 128 KB code flash with 1 KB erase blocks, self-programming, boot swap, and flash shield window |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 write cycles, rewrite voltage 1.8–5.5 V |
| RAM | 12 KB on-chip SRAM, including dedicated areas for flash library use (start address FAF00H) |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| Oscillator | On-chip high-speed oscillator selectable from 1–32 MHz; ±1.0% accuracy over –20 to +85°C at VDD = 1.8–5.5 V |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Temp | –40°C to +105°C (industrial G-grade), qualified per AEC-Q100 stress test conditions |
Pinout & Package
Package: HWQFN-48 (7 × 7 mm, 0.5 mm pitch, exposed thermal pad), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD supplies core/peripherals; VSS provides low-noise return path for analog/digital sections |
| 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 different-potential interfacing (1.8/2.5/3 V) |
| P10–P17 | Multi-function port | Supports SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00, SO00/TxD0/TOOLTxD/SCL00, etc.; enables UART, I²C, CSI, and debug communication |
| P20–P27 | Analog input port | ANI0–ANI7 inputs with AVREFP/AVREFM reference pins; connects directly to 10-bit ADC and internal temperature sensor |
| RESET | Reset input | Active-low reset with on-chip POR and LVD (14 selectable voltage thresholds); supports both reset and interrupt generation |
| CLKP, CLKM | External crystal connection | Optional 32.768 kHz crystal input for RTC; not required when using on-chip oscillators |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power modes | HALT, STOP, and SNOOZE modes enable sub-μA system sleep while retaining RAM and RTC state |
| Hardware BGO | Allows full CPU execution from program memory during data flash rewrite - no firmware stall or context save required |
| Integrated LIN support | UART peripheral includes automatic LIN bus synchronization, checksum generation, and break detection per ISO 17987-4 |
| Real-time clock | Calendar function (99-year range), alarm interrupt, and programmable clock correction eliminate external RTC IC |
| Security functions | Flash block erase/write prohibition and flash shield window prevent unauthorized firmware access or modification |
| On-chip debug | Fully compliant with E1/E20 debug interfaces; supports flash programming, breakpoint, and trace without external JTAG adapter |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Sub-metering unit in three-phase electricity meters collecting voltage/current waveforms and calculating harmonics. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing SPI-connected ADCs, and communicating via UART/LIN to concentrator units. Use Value: 10-bit 26-channel ADC with internal reference enables direct analog front-end sampling; BGO allows firmware updates without interrupting measurement cycles. |
Use Scenario: Wireless temperature/humidity node powered by coin-cell battery, transmitting data every 5 minutes via BLE gateway. IC Role / Device Role / Timing Role: System-on-chip managing sensor readout, RTC-triggered wake-up, low-power UART-to-BLE bridge logic, and secure OTA update handling. Use Value: 0.57 μA STOP mode with RTC+LVD extends battery life beyond 5 years; HWQFN-48 footprint supports compact PCB layout with minimal passive count. |
| Home Appliance Control | Building Automation Panel |
|
Use Scenario: Washing machine main control board regulating motor drive, water valves, and user interface. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, touch-key scanning, buzzer output, and fault monitoring via LVD. Use Value: 16× 16-bit timers provide precise phase-shifted PWM for inverter drives; on-chip buzzer controller eliminates external driver IC. |
Use Scenario: DIN-rail mounted HVAC controller reading thermistors, driving relays, and communicating via RS-485 Modbus RTU. IC Role / Device Role / Timing Role: Protocol-aware controller implementing Modbus slave stack, managing isolated UART transceivers, and logging events to data flash. Use Value: Dual UART with LIN capability simplifies RS-485 half-duplex timing; 8 KB data flash stores 30+ days of timestamped event logs with wear leveling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100GHGFB#V0 | LQFP-48 package (7 × 7 mm, 0.5 mm pitch), same memory and peripherals; lacks exposed thermal pad | Better suited for manual soldering or rework; lower thermal performance in continuous 32 MHz operation | Select when board assembly uses standard reflow profiles without vapor-phase or when thermal pad routing is constrained |
| R5F101GHGNA#U0 | Same package and pinout but omits data flash (0 KB); retains 128 KB code flash and 12 KB RAM | Applicable where firmware updates occur only via external host or where EEPROM emulation is handled externally | Choose when data logging or field firmware patching is unnecessary - reduces cost and simplifies qualification |
Compared with R5F100GHGNA#U0, the R5F100GHGFB#V0 offers identical functionality in a more serviceable package but trades thermal efficiency for assembly flexibility, while the R5F101GHGNA#U0 removes data flash to lower unit cost and simplify security certification - making it viable only when background nonvolatile parameter storage is not required.
Availability
R5F100GHGNA#U0 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 extended product lifecycles.
Supply support for R5F100GHGNA#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G13 family delivers true low-power 16-bit MCU performance for general-purpose embedded applications - optimized for cost-sensitive, battery-operated, and thermally constrained designs requiring high integration and long-term supply assurance.
FAQ
What is the maximum operating frequency and associated power consumption of the R5F100GHGNA#U0?
The R5F100GHGNA#U0 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, active current consumption is 66 μA per MHz - resulting in approximately 2.1 mA total at 32 MHz with all peripherals disabled. This value scales linearly with clock speed and increases with peripheral activation, such as ADC conversion or UART transmission.
Does the R5F100GHGNA#U0 support background data flash rewriting while executing application code?
Yes, the R5F100GHGNA#U0 supports Background Operation (BGO) for data flash. During BGO, the CPU can execute instructions from program memory while the data flash is being rewritten - enabling seamless firmware updates or parameter logging without halting real-time tasks. The flash library reserves RAM starting at address FAF00H for this purpose.
What are the key differences between the R5F100GHGNA#U0 and R5F101GHGNA#U0?
The R5F100GHGNA#U0 includes 8 KB of data flash memory with BGO and 1,000,000 rewrite cycles, whereas the R5F101GHGNA#U0 has no data flash. Both share identical code flash (128 KB), RAM (12 KB), package (HWQFN-48), and peripheral set. The R5F101 variant is intended for applications where nonvolatile parameter storage is handled externally or omitted entirely.
Can the R5F100GHGNA#U0 operate across the full industrial temperature range?
Yes, the R5F100GHGNA#U0 is rated for operation from –40°C to +105°C (G-grade), meeting industrial environmental requirements. This rating applies to the full electrical specification - including 32 MHz operation, ADC linearity, and data flash reliability - validated across the entire temperature range per Renesas' qualification standards.
Which debug interfaces are supported by the R5F100GHGNA#U0?
The R5F100GHGNA#U0 supports Renesas E1 and E20 on-chip debug emulators via the dedicated TOOLRxD/TOOLTxD pins (P11/P12). It requires no external JTAG adapter and enables full flash programming, real-time breakpoint setting, register inspection, and trace - all through a single 6-pin SWD-compatible connector.
R5F100GHGNA#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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K 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:
R5F100GHGNA#U0 FAQ
1.How can I place an order for R5F100GHGNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100GHGNA#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 R5F100GHGNA#U0 reliable?
The price and inventory of R5F100GHGNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100GHGNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F100GHGNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100GHGNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100GHGNA#U0?
R5F100GHGNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100GHGNA#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 R5F100GHGNA#U0?
For technical support, including R5F100GHGNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100GHGNA#U0 requirements.
6.How does Aetrix verify that R5F100GHGNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F100GHGNA#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 R5F100GHGNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F100GHGNA#U0?
All R5F100GHGNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100GHGNA#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 R5F100GHGNA#U0 part is unused and in its original packaging.
Return procedure for R5F100GHGNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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