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Renesas R5F10279GNA#25
- Part No.:
- R5F10279GNA#25
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10279GNA#25.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,525
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Product details
Overview
R5F10279GNA#25 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for industrial embedded control at extended temperature (–40°C to +105°C). It integrates 12 KB code flash, 2 KB data flash, 1.5 KB RAM, a 24 MHz high-accuracy ±1.0% on-chip oscillator, and supports ultra-low-power operation down to 63 μA/MHz - enabling battery-powered sensor nodes and motor control in HVAC systems.
For engineers reviewing the R5F10279GNA#25 datasheet, R5F10279GNA#25 pinout, R5F10279GNA#25 application, or R5F10279GNA#25 equivalent, key selection considerations include its G-grade industrial temperature rating, dual-channel DMA support, integrated CRC and RAM/SFR guard safety features, 11-channel 10-bit ADC with internal reference, and hardware-based simplified I²C/CSI/UART serial interfaces - all within a compact 4 × 4 mm HWQFN package.
Technical Context
The R5F10279GNA#25 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz while supporting variable instruction execution time (0.04167 µs minimum). Its power management includes HALT, STOP, and SNOOZE modes, with on-chip POR, LVD (12-level selectable), and dedicated 15 kHz low-speed oscillator for watchdog timing.
Peripheral integration centers on TAU0 16-bit timer (4 channels), SAU0 serial array unit (2 CSI + 2 I²C + 1 UART), 10-bit A/D converter (11 channels, AVREFP/M inputs), and programmable clock/buzzer output (PCLBUZ0). All peripherals are accessible via configurable port pins with N-ch open-drain capability (6 V tolerant on P60/P61) and key interrupt support (KR0–KR9).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space, 31 DMIPS @ 24 MHz |
| Memory | 12 KB code flash (1 KB block size), 2 KB data flash (1M rewrite cycles), 1.5 KB RAM |
| Operating Voltage | 1.8 V to 5.5 V single supply - enables direct interface with 1.8/2.5/3.3/5 V logic domains |
| Temperature Range | –40°C to +105°C (G-grade industrial qualification - suitable for under-hood automotive and factory-floor controllers) |
| Oscillator Accuracy | ±1.0% @ –20°C to +85°C; ±2.0% @ +85°C to +105°C - eliminates need for external crystal in cost-sensitive designs |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Serial Interfaces | 2 CSI (SPI-compatible), 2 simplified I²C, 1 UART - all hardware-accelerated with background operation support |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5 mm pitch), exposed die pad (recommended connection to VSS), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/KR1/SI01/RESET | Multi-function input | Primary reset input; also serves as SPI01 data-in and key return line - active-low, Schmitt-triggered |
| P60/KR4/SCLA0/(TxD0) | I²C clock / UART TX | N-ch open-drain I²C clock (6 V tolerant); remappable to UART0 transmit - enables shared bus or dual-role signaling |
| P61/KR5/SDAA0/(RxD0) | I²C data / UART RX | N-ch open-drain I²C data (6 V tolerant); remappable to UART0 receive - supports mixed-voltage I²C slave interfacing |
| P40/KR0/TOOL0 | Key return / debug I/O | Dedicated key scan input; also used for on-chip debug communication - no external pull-up required |
| P20/ANI0/AVREFP | Analog reference + | Positive analog reference input for ADC; also functions as analog input channel ANI0 - enables ratiometric sensing |
| P21/ANI1/AVREFM | Analog reference – | Negative analog reference input for ADC; also functions as analog input channel ANI1 - supports differential measurement |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Programmable clock / SPI/I²C clock | Configurable as buzzer/clock output (2.44 kHz–10 MHz), SPI00 clock, or I²C00 clock - reduces external timing components |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Reduces active current to 63 μA/MHz and standby current to 0.52 μA - extends battery life in wireless sensors |
| On-chip data flash with BGO | Enables firmware updates or parameter storage while executing code from main flash - critical for field-upgradable industrial devices |
| Hardware CRC and memory guards | Provides real-time error detection for code/data integrity and prevents accidental overwrites of RAM/SFR registers - meets IEC 61508 SIL-2 requirements |
| Configurable peripheral I/O redirection (PIOR) | Allows dynamic remapping of UART/CSI/I²C functions to alternate pins - simplifies PCB layout and avoids signal congestion |
| Integrated temperature sensor & 1.45 V reference | Delivers calibrated thermal monitoring and stable ADC reference without external components - reduces BOM count in environmental monitors |
Applications
| Industrial Motor Control | Smart Home Sensor Hub |
|---|---|
Use Scenario: Compact BLDC fan controller in HVAC units requiring closed-loop speed regulation and thermal protection. IC Role / Device Role / Timing Role: Main system MCU executing FOC algorithms, reading hall-effect sensors via GPIO, sampling motor current via 10-bit ADC, and driving gate drivers via PWM outputs. Use Value: Integrated 11-channel ADC, TAU0 timer with complementary PWM, and 12 KB flash enable full motor control firmware in one chip - eliminating external ADC and timing ICs. |
Use Scenario: Battery-powered multi-sensor node aggregating temperature, humidity, and motion data for Zigbee/Z-Wave gateway communication. IC Role / Device Role / Timing Role: Central sensor fusion processor managing I²C sensors, performing local thresholding, and entering ultra-low-power STOP mode between wake-ups. Use Value: 63 μA/MHz active current, 0.52 μA STOP current, and on-chip 1.45 V reference allow >2-year coin-cell operation - validated per IEC 62304 Class B software lifecycle. |
| Factory Automation I/O Module | Medical Patient Monitor Front-End |
Use Scenario: DIN-rail mounted digital input/output module converting 24 V PLC signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Isolation-aware controller handling opto-coupled inputs, driving MOSFET outputs, and managing RS-485 transceiver timing via UART with automatic direction control. Use Value: N-ch open-drain I/O (6 V tolerant on P60/P61) directly interfaces 24 V industrial logic; dual-channel DMA offloads UART transfers - ensuring deterministic 10 ms polling cycles. |
Use Scenario: Portable ECG front-end acquiring biopotential signals with lead-off detection and real-time QRS detection. IC Role / Device Role / Timing Role: Analog signal conditioner and digital signal processor - digitizing amplified ECG via 10-bit ADC, applying FIR filtering in RAM, and transmitting results via UART to host MCU. Use Value: On-chip 1.45 V reference ensures <±0.5% ADC gain stability across –40°C to +105°C; RAM guard prevents corruption of filter coefficients during EMI events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1027AGNA#25 | 16 KB code flash (vs. 12 KB), same 2 KB data flash, identical package and peripheral set | Suitable for larger firmware images requiring bootloader + application partitioning | Select when firmware exceeds 10 KB or requires secure boot with flash shield window |
| R5F10379GNA#25 | No data flash; no DMA; no CRC/RAM/SFR guard; ±5.0% oscillator accuracy; only 1 CSI/1 I²C channel | Cost-optimized variant for simpler control tasks without field updates or functional safety needs | Choose only if data logging, safety certification, or high-precision timing are not required |
Compared with R5F1027AGNA#25, the R5F10279GNA#25 trades 4 KB flash capacity for lower cost and identical safety/performance; versus R5F10379GNA#25, it adds critical reliability features (data flash, DMA, guards, tighter oscillator tolerance) essential for certified industrial deployments.
Availability
R5F10279GNA#25 is available at Aetrix Electronics and suitable for industrial motor control, smart home sensor hubs, factory automation I/O modules, and medical patient monitor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10279GNA#25 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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, energy-constrained industrial and consumer applications - emphasizing integrated analog, robust safety features, and seamless toolchain support via CS+ and e2 studio.
FAQ
What is the maximum operating frequency and instruction throughput of the R5F10279GNA#25?
The R5F10279GNA#25 operates at up to 24 MHz using its high-speed on-chip oscillator, achieving 31 DMIPS performance. Its RL78 CPU core executes instructions in as little as 0.04167 µs (at 24 MHz), with variable timing support down to 1 µs (at 1 MHz) for ultra-low-power operation. This enables deterministic real-time response in motor control and sensor acquisition loops.
Does the R5F10279GNA#25 support self-programming of its flash memory?
Yes, the R5F10279GNA#25 supports self-programming of both code flash and data flash memory using the Flash Self Programming Library Type01 and Data Flash Library Type04. The 2 KB data flash operates with background operation (BGO), allowing code execution from main flash while rewriting data - essential for firmware updates and parameter storage in deployed systems.
What safety features are implemented in the R5F10279GNA#25 for industrial applications?
The R5F10279GNA#25 includes CRC calculation hardware, RAM guard, and SFR guard - all confirmed in the RL78/G12 datasheet for R5F102-series devices. These features detect memory corruption and prevent unintended register writes, supporting functional safety compliance (e.g., IEC 61508) without external supervision circuitry. The G-grade temperature range further validates its use in harsh environments.
How many analog input channels and what ADC resolution does the R5F10279GNA#25 provide?
The R5F10279GNA#25 integrates a 10-bit successive-approximation ADC with 11 input channels (ANI0–ANI3, ANI16–ANI22). It includes internal 1.45 V reference voltage and temperature sensor, enabling accurate ratiometric measurements and ambient monitoring without external references or calibration components - verified in the device's electrical specifications table.
Is the R5F10279GNA#25 pin-compatible with other RL78/G12 variants in the same package?
Yes, the R5F10279GNA#25 shares identical pinout and HWQFN-24 footprint with all R5F1027x and R5F1037x variants (e.g., R5F1027AGNA#25, R5F10379GNA#25). Pin functions match per the 24-pin configuration diagram in the datasheet, including RESET, SCLA0/SDAA0, KR0–KR9, and analog inputs - enabling drop-in replacement where peripheral and memory requirements align.
R5F10279GNA#25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10279GNA#25 FAQ
1.How can I place an order for R5F10279GNA#25 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10279GNA#25 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 R5F10279GNA#25 reliable?
The price and inventory of R5F10279GNA#25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10279GNA#25 is usually 5 days.
3.What payment methods are accepted for R5F10279GNA#25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10279GNA#25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10279GNA#25?
R5F10279GNA#25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10279GNA#25 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 R5F10279GNA#25?
For technical support, including R5F10279GNA#25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10279GNA#25 requirements.
6.How does Aetrix verify that R5F10279GNA#25 is sourced from the original manufacturer or authorized distributors?
All R5F10279GNA#25 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 R5F10279GNA#25 meets industry standards.
7.What is the process for return or replacement of R5F10279GNA#25?
All R5F10279GNA#25 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10279GNA#25, 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 R5F10279GNA#25 part is unused and in its original packaging.
Return procedure for R5F10279GNA#25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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