My Inquiry
My Account
Renesas R5F10279GNA#45
- Part No.:
- R5F10279GNA#45
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10279GNA#45.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F10279GNA#45 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, 10-bit 11-channel ADC, dual CSI/I²C interfaces, UART, 4-channel TAU timer, and 2-channel DMA - enabling low-power motor control, sensor node, and smart appliance applications.
For engineers reviewing the R5F10279GNA#45 datasheet, R5F10279GNA#45 pinout, R5F10279GNA#45 application, or R5F10279GNA#45 equivalent, key selection criteria include its G-grade industrial temperature rating, on-chip data flash for field firmware updates, high-accuracy ±1.0% on-chip oscillator (–20°C to +85°C), true low-power HALT/STOP/SNOOZE modes, and hardware CRC for safety-critical data integrity.
Technical Context
The R5F10279GNA#45 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 1 MB address space and minimum instruction execution time of 0.04167 µs at 24 MHz. Its power management includes on-chip POR, 12-level LVD, and dedicated low-speed 15 kHz watchdog oscillator.
Peripheral integration centers on dual SAU0 modules enabling simultaneous CSI00/CSI01 and IICA0/IIC01 operation, plus UART0, 4-channel 16-bit TAU0 with PWM capability, and background data flash rewriting (BGO) - all operating across 1.8–5.5 V supply with 63 µA/MHz active current consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - supports direct interface with 1.8/2.5/3.3 V peripherals |
| Flash Memory | 12 KB code flash + 2 KB data flash - enables secure self-programming and BGO firmware updates |
| RAM | 1.5 KB on-chip RAM - sufficient for real-time control stacks and sensor buffering |
| ADC | 10-bit resolution, 11 input channels with internal 1.45 V reference and temperature sensor |
| Timers | 4-channel 16-bit TAU0 + 1-channel 12-bit interval timer + windowed watchdog timer |
| Serial Interfaces | UART0, CSI00/CSI01 (SPI-like), IICA0/IIC01 (I²C) - dual independent serial buses |
| Power Modes | HALT (63 μA/MHz), STOP (0.52 μA), SNOOZE - optimized for battery-powered operation |
Pinout & Package
Package: HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch) with exposed die pad connected to VSS per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input / Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting clock generation, analog sensing, and buzzer drive without external components |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input / SPI Data In / UART RX / I²C Data / Debug RX | Shared serial receive path reduces PCB routing complexity for debug and communication |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input / SPI Data Out / UART TX / Debug TX | Enables full-duplex UART/CSI operation while retaining analog input capability |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input / Timer Input / Timer Output / Interrupt | Hardware timer capture/compare and interrupt trigger on single pin simplifies edge-sensitive control |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input / Timer Input / Timer Output / Interrupt | Dual timer I/O with interrupt support enables precise pulse-width measurement and generation |
| P20/ANI0/AVREFP | Analog Input 0 / Positive Reference Voltage | Provides stable AVREFP for accurate ADC conversions across supply voltage range |
| P21/ANI1/AVREFM | Analog Input 1 / Negative Reference Voltage | Completes differential reference pair for ratiometric sensor measurements |
| P22/ANI2 | Analog Input 2 | Additional channel for multi-sensor systems (e.g., temperature + voltage monitoring) |
| P23/ANI3 | Analog Input 3 | Fourth analog input supports 4-channel analog front-end without multiplexer |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return / Debug Interface | Supports both capacitive touch key scanning and in-circuit debugging via same pin |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Analog Input 22 / SPI Data Out / I²C Data / Timer I/O / Interrupt | High-density peripheral sharing enables compact design for space-constrained industrial modules |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Analog Input 21 / SPI Clock / I²C Clock / Timer I/O | Second serial clock domain with timer functionality allows synchronized dual-bus timing |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return / I²C Clock / UART TX (remappable) | I²C master clock with optional UART remapping increases interface flexibility |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return / I²C Data / UART RX (remappable) | I²C data line with UART receive remap supports protocol fallback in noisy environments |
| P121/KR3/X1/(TI03)/(INTP3) | Crystal Input / Key Return / Timer Input / Interrupt | Primary crystal oscillator input with secondary timer/interrupt function for fail-safe timing |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Crystal Output / Key Return / External Clock / Timer Input / Interrupt | Crystal output with external clock input option enables precision clock source selection |
| P125/KR1/SI01/RESET | Key Return / SPI Data In / Reset Input | Hardware reset with SPI data input sharing reduces pin count for cost-sensitive designs |
| P137/INTP0 | Port 13 bit 7 / External Interrupt | Dedicated interrupt pin for fast response to external events (e.g., emergency stop) |
| VDD | Power Supply | Single 1.8–5.5 V supply eliminates need for multiple regulators |
| VSS | Ground | Reference for all analog/digital functions; must connect to exposed die pad |
| REGC | Regulator Capacitance | Connects to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator |
Key Features
| Feature | Design Value |
|---|---|
| True Low-Power Platform | 63 µA/MHz active current enables >10-year battery life in sensor nodes |
| On-Chip Data Flash | 2 KB data flash with 1M rewrite cycles and background operation (BGO) supports over-the-air firmware updates |
| Hardware Safety Functions | CRC calculation unit, RAM guard, and SFR guard detect memory corruption in safety-critical applications |
| High-Accuracy Oscillator | ±1.0% high-speed on-chip oscillator (–20°C to +85°C) eliminates external crystal for cost-sensitive designs |
| Dual Serial Bus Support | Independent CSI00+IICA0 and CSI01+IIC01 channels enable concurrent sensor and actuator communication |
| Industrial Temperature Grade | G-grade (–40°C to +105°C) operation certified for under-hood automotive and factory automation environments |
Applications
| Motor Control System | Smart Thermostat |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC fans in HVAC units using hall-effect sensors and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing ADC sampling, generating 3-phase PWM, and communicating via UART to host MCU. Use Value: Integrated 11-channel ADC with internal reference and 4-channel TAU timer with PWM outputs eliminate external signal conditioning and timing ICs. |
Use Scenario: Wireless temperature/humidity monitoring with local display, relay control, and BLE gateway interface. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (NTC, humidity IC), digital (I²C temp sensor), and user input (key matrix) data. Use Value: On-chip data flash stores calibration coefficients and OTA update images; key return inputs reduce GPIO count for compact button layout. |
| Industrial PLC I/O Module | Medical Infusion Pump |
Use Scenario: DIN-rail mounted digital input/output expansion module with isolation and diagnostics. IC Role / Device Role / Timing Role: Isolated field-side controller handling opto-coupled inputs, driving MOSFET outputs, and reporting status via RS-485. Use Value: Hardware CRC ensures integrity of configuration data stored in data flash; 12-level LVD detects brown-out conditions before logic errors occur. |
Use Scenario: Battery-powered infusion pump requiring precise flow rate control, occlusion detection, and alarm signaling. IC Role / Device Role / Timing Role: Safety-monitored controller performing motor step sequencing, pressure ADC sampling, buzzer alerts, and USB charging management. Use Value: G-grade temperature range supports operation in clinical environments; STOP mode draws only 0.52 µA during standby between doses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1027AGNA#45 | 16 KB code flash, no data flash, identical package/peripherals | Lacks 2 KB data flash for field updates; suitable for fixed-function firmware | Select when firmware size exceeds 12 KB and data logging is unnecessary |
| R5F10379GNA#45 | No data flash, no DMA, no CRC, reduced serial interfaces (1 CSI, 0 I²C), same 12 KB flash | Lower cost but lacks safety features and dual serial bus capability | Select for basic control tasks where BGO, CRC, and concurrent I²C/CSI are not required |
Compared with R5F1027AGNA#45 and R5F10379GNA#45, the R5F10279GNA#45 uniquely delivers 2 KB data flash with BGO, hardware CRC, and dual CSI/I²C - making it the only choice among these three for applications requiring secure field-upgradable firmware and concurrent multi-protocol communication.
Availability
R5F10279GNA#45 is available at Aetrix Electronics and suitable for industrial motor control, smart building thermostats, PLC I/O modules, and medical infusion pumps requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10279GNA#45 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 automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust analog integration, safety features, and extended temperature operation.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F10279GNA#45?
The R5F10279GNA#45 features a high-speed on-chip oscillator with selectable frequencies up to 24 MHz. Its accuracy is ±1.0% over –20°C to +85°C ambient temperature and ±2.0% over the full industrial range of –40°C to +105°C, as specified in the R01DS0193EJ0250 datasheet. This eliminates the need for an external crystal in many applications while maintaining timing reliability for UART and timer functions.
Does R5F10279GNA#45 support background data flash rewriting (BGO)?
Yes, the R5F10279GNA#45 supports background data flash rewriting (BGO), allowing the CPU to execute instructions from program memory while simultaneously erasing or programming the 2 KB data flash area. This capability enables seamless firmware updates and parameter storage without interrupting real-time control tasks - a critical feature confirmed in Section 1.1 of the R01DS0193EJ0250 datasheet.
How many analog input channels does R5F10279GNA#45 provide, and what reference options are available?
The R5F10279GNA#45 provides 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with 10-bit resolution. It supports internal reference voltage (1.45 V) and external differential references via AVREFP and AVREFM pins, enabling ratiometric measurements for sensors like RTDs and bridge transducers. This analog capability is fully documented in the "A/D converter" section of the R01DS0193EJ0250 datasheet.
What safety features are integrated into R5F10279GNA#45 for industrial applications?
The R5F10279GNA#45 includes hardware CRC calculation, RAM guard, and SFR guard - all explicitly listed in Section 1.3.3 of the R01DS0193EJ0250 datasheet as features exclusive to R5F102 products. These features detect memory corruption and unauthorized register writes, supporting functional safety requirements in industrial control systems without external monitoring circuitry.
Is R5F10279GNA#45 pin-compatible with other RL78/G12 24-pin variants?
Yes, the R5F10279GNA#45 shares identical pinout and package (HWQFN-24) with all other R5F1027x and R5F1037x variants, including R5F1027AGNA#45 and R5F10379GNA#45. Pin compatibility is confirmed by Figure 1-1 and Table 1-1 in the R01DS0193EJ0250 datasheet, enabling drop-in replacement within the same memory and feature subset - though functional differences (e.g., data flash presence) must be verified in software.
R5F10279GNA#45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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#45 FAQ
1.How can I place an order for R5F10279GNA#45 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10279GNA#45 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#45 reliable?
The price and inventory of R5F10279GNA#45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10279GNA#45 is usually 5 days.
3.What payment methods are accepted for R5F10279GNA#45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10279GNA#45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10279GNA#45?
R5F10279GNA#45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10279GNA#45 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#45?
For technical support, including R5F10279GNA#45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10279GNA#45 requirements.
6.How does Aetrix verify that R5F10279GNA#45 is sourced from the original manufacturer or authorized distributors?
All R5F10279GNA#45 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#45 meets industry standards.
7.What is the process for return or replacement of R5F10279GNA#45?
All R5F10279GNA#45 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10279GNA#45, 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#45 part is unused and in its original packaging.
Return procedure for R5F10279GNA#45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F10279GNA#45 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
