Renesas R5F10379ANA#05
- Part No.:
- R5F10379ANA#05
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10379ANA#05.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 24HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10379ANA#05 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer and industrial applications. It features 12 KB code flash, 768 B RAM, 1.8–5.5 V operation, 24 MHz high-speed on-chip oscillator (±5% accuracy), and 8-channel 10-bit A/D converter with 11 analog inputs. It serves as the main system controller in battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F10379ANA#05 datasheet, R5F10379ANA#05 pinout, R5F10379ANA#05 application, or R5F10379ANA#05 equivalent, key selection criteria include its 24-pin HWQFN-0.5 mm pitch package, absence of data flash memory, single UART channel, lack of DMA and CRC hardware, and support for only simplified SPI (1 channel) and no simplified I²C - distinguishing it from R5F1027x variants.
Technical Context
The R5F10379ANA#05 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and 8×8-bit general-purpose registers across 4 banks. Its power management includes HALT, STOP, and SNOOZE modes enabling 63 μA/MHz active current consumption.
It integrates a 12-bit interval timer, window watchdog timer, on-chip power-on-reset and voltage detector (12-level LVD), and programmable clock/buzzer output. Peripheral I/O redirection (PIOR) enables flexible pin function assignment, but lacks safety features like RAM guard, SFR guard, or CRC operation found in R5F1027x counterparts.
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 logic without level shifters |
| Flash Memory | 12 KB code flash (1 KB block size) - sufficient for compact firmware with self-programming capability |
| RAM Size | 768 B internal RAM - adequate for real-time control stacks and small data buffers |
| A/D Converter | 10-bit resolution, 8 channels, 11 analog inputs - enables multi-sensor monitoring with internal reference |
| Timer Resources | 4-channel 16-bit TAU, 1-channel 12-bit interval timer, 1-channel window watchdog - supports PWM generation and time-critical supervision |
| Oscillator Accuracy | ±5% over –40°C to +85°C - suitable for non-precision timing applications like UI polling or basic motor control |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), no simplified I²C - limits multi-device bus topology but reduces pin count and firmware complexity |
Pinout & Package
Package: HWQFN-24, 4 mm × 4 mm, 0.5 mm pitch, exposed die pad (to be connected to VSS). Pin count: 24. Pin functions validated per Renesas R01DS0193EJ0250 Rev.2.50, Section 1.4.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/KR6/(SI01) | Port 0 bit 0 / Key return 6 / Serial input | Configurable as GPIO, key scan input, or SPI slave input - supports low-power wake-up from keypad |
| P01/KR7/(SO01) | Port 0 bit 1 / Key return 7 / Serial output | Configurable as GPIO, key scan input, or SPI slave output - enables bidirectional peripheral communication |
| P02/KR8/(SCK01) | Port 0 bit 2 / Key return 8 / Serial clock | Configurable as GPIO, key scan input, or SPI clock - synchronizes data transfer with external sensors |
| P03/KR9 | Port 0 bit 3 / Key return 9 | Dedicated key return input - simplifies mechanical button interface with built-in debouncing support |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog input 16 / Clock/buzzer / SPI clock / I²C clock | Multiplexed function pin - selects between analog sensing, programmable clock output, or master SPI/I²C clock via PIOR |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input 17 / SPI input / UART RX / I²C data / Debug RX | Primary serial receive path - supports UART, SPI, or I²C slave mode; also used for on-chip debug communication |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 18 / SPI output / UART TX / Debug TX | Primary serial transmit path - enables full-duplex UART communication and debug visibility during development |
| P13/ANI19/TO00/INTP2 | Port 1 bit 3 / Analog input 19 / Timer output / External interrupt 2 | Hardware PWM output or edge-triggered interrupt source - drives LEDs or captures encoder pulses |
| P14/ANI20/TO01/INTP3 | Port 1 bit 4 / Analog input 20 / Timer output / External interrupt 3 | Second timer output or interrupt pin - supports dual-channel PWM or redundant fault detection |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog input 0 / Positive analog reference | Analog front-end reference point - sets upper bound for A/D conversion range when internal 1.45 V reference is disabled |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog input 1 / Negative analog reference | Analog front-end reference point - defines lower bound for differential A/D measurements |
| P22/ANI2 | Port 2 bit 2 / Analog input 2 | Dedicated analog input - connects directly to temperature sensor or voltage divider without multiplexing overhead |
| P23/ANI3 | Port 2 bit 3 / Analog input 3 | Dedicated analog input - provides fourth independent analog sensing channel for multi-parameter monitoring |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key return 0 / Debug I/O | Multi-function pin for key scanning, debug data exchange, or general-purpose I/O - reduces BOM count in space-constrained designs |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog input 22 / SPI output / I²C data / Timer input / Timer output / Interrupt 1 | Highly multiplexed pin - supports analog sensing, serial communication, timing capture, or interrupt-driven event handling |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog input 21 / SPI clock / I²C clock / Timer input / Timer output | Highly multiplexed pin - enables synchronous sensor interface or precise timing measurement with hardware capture |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key return 4 / I²C clock / UART TX | I²C master clock or UART transmit - supports dual-role communication depending on peripheral configuration |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key return 5 / I²C data / UART RX | I²C master data or UART receive - enables shared bus or point-to-point serial connectivity |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key return 3 / Crystal input / Timer input / Interrupt 3 | Primary crystal oscillator connection - also usable as timer input or interrupt source if external clock is not required |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key return 2 / Crystal output / External clock / Timer input / Interrupt 2 | Crystal oscillator output or external clock input - allows bypassing crystal for precision clock sources |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key return 1 / SPI input / Reset | Hardware reset input with SPI slave capability - ensures reliable startup and enables firmware update via SPI |
| P137/INTP0 | Port 13 bit 7 / External interrupt 0 | Dedicated interrupt pin - provides lowest-latency response to critical external events like power-fail detection |
| VDD | Power supply | Single 1.8–5.5 V supply - eliminates need for external regulators in multi-voltage systems |
| VSS | Ground | Reference ground for analog and digital domains - requires low-impedance connection to exposed die pad |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 μA/MHz active current enables >1-year battery life in coin-cell-powered devices |
| On-chip high-speed oscillator | 24 MHz ±5% internal clock eliminates external crystal cost and board space for non-critical timing |
| Flexible I/O configuration | Per-pin N-ch open-drain, TTL input, and pull-up resistor settings simplify interface to diverse peripherals |
| Integrated analog subsystem | 10-bit A/D with internal 1.45 V reference and temperature sensor enables self-calibrating sensor nodes |
| Programmable clock/buzzer output | PCLBUZ0 generates 2.44 kHz–10 MHz signals for audible alerts or clocking external ICs without timers |
| Peripheral I/O redirection | PIOR register allows dynamic remapping of serial, timer, and interrupt functions to optimize PCB layout |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
Use Scenario: Local temperature/humidity display with push-button navigation and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing analog sensor reads, key scan, LCD refresh, and UART-based BLE module interface. Use Value: 768 B RAM and 12 KB flash accommodate sensor fusion algorithms and BLE stack; 10-bit A/D ensures ±0.5°C thermal accuracy. | Use Scenario: DIN-rail mounted vibration and current monitor in factory automation cabinets. IC Role / Device Role / Timing Role: Real-time acquisition engine capturing analog inputs at 1 kHz and triggering UART alarms on threshold breach. Use Value: 63 μA/MHz operation extends runtime during brownout; 4-channel TAU enables simultaneous PWM fan control and timestamped event logging. |
| Home Appliance Control Board | Medical Wearable Monitor |
Use Scenario: Washing machine main control unit coordinating motor drive, water valve, and user interface. IC Role / Device Role / Timing Role: Central MCU executing state-machine logic, driving triac outputs via opto-isolators, and reading rotary encoder inputs. Use Value: P00–P03 key return inputs simplify mechanical knob interface; 1.8–5.5 V operation tolerates wide input rail fluctuations from unregulated AC-DC supplies. | Use Scenario: Portable pulse oximeter with LED drivers, photodiode amplifier, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal processor acquiring synchronized red/IR ADC samples, computing SpO₂, and transmitting results via UART to BLE SoC. Use Value: Internal 1.45 V A/D reference ensures stable ratio-metric measurements; SNOOZE mode reduces average current to <10 μA between sampling bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10279ANA#05 | Includes 2 KB data flash, DMA controller, CRC, RAM/SFR guard, ±1% oscillator accuracy, 2 CSI channels, 2 simplified I²C channels | Required for field-upgradable firmware, secure boot, or high-accuracy timing in metering applications | Select when data logging, cryptographic integrity, or tighter clock tolerance is mandatory |
| R5F10378ANA#05 | 4 KB code flash, same 768 B RAM, identical peripheral set and package | Suitable for cost-sensitive designs where firmware size is under 4 KB and flash endurance is less critical | Choose for simpler firmware with lower memory footprint and reduced unit cost |
Compared with R5F10379ANA#05, R5F10279ANA#05 adds data flash and safety features at higher cost and power, while R5F10378ANA#05 trades flash capacity for lower price - making R5F10379ANA#05 the optimal balance of memory, features, and cost for mid-complexity embedded control.
Availability
R5F10379ANA#05 is available at Aetrix Electronics and suitable for smart home controllers, industrial sensor nodes, and medical wearables requiring stable component supply and long-term production continuity.
Supply support for R5F10379ANA#05 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 ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated embedded control applications requiring high integration and robust peripheral sets.
FAQ
What is the maximum operating frequency of the R5F10379ANA#05?
The R5F10379ANA#05 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. This frequency is achievable across the full 1.8–5.5 V supply range and enables 31 DMIPS performance. External crystal operation is limited to 20 MHz (VDD ≥ 2.7 V) or 8 MHz (VDD ≥ 1.8 V), making the on-chip oscillator the preferred choice for highest throughput.
Does the R5F10379ANA#05 include data flash memory?
No, the R5F10379ANA#05 does not include data flash memory. As confirmed in Renesas documentation (R01DS0193EJ0250 Section 1.3.1), R5F103x products omit the 2 KB data flash present in R5F102x variants. Firmware must use code flash for parameter storage or rely on external EEPROM/FRAM if non-volatile data retention is required.
What are the key differences between R5F10379ANA#05 and R5F10279ANA#05?
The R5F10379ANA#05 lacks data flash, DMA controller, CRC hardware, RAM/SFR guard, and has ±5% oscillator accuracy versus ±1% in R5F10279ANA#05. It also supports only one simplified SPI channel and zero simplified I²C channels, whereas R5F10279ANA#05 offers two of each. These omissions reduce cost and power but limit firmware upgradability and functional safety compliance.
Which development tools support the R5F10379ANA#05?
The R5F10379ANA#05 is supported by Renesas E2 studio IDE, CS+ (formerly CubeSuite+), and the Renesas Flash Programmer. Hardware debugging requires an E2 emulator Lite or E2 emulator, both compatible with the 24-pin HWQFN package via standard 10-pin JTAG/SWD connectors. No special adapters are needed for evaluation board interfacing.
What is the operating temperature range for the R5F10379ANA#05?
The R5F10379ANA#05 is rated for operation from –40°C to +85°C, corresponding to the "A" (consumer) and "D" (industrial) temperature grades per Renesas part numbering convention. The "#05" suffix confirms tray packaging for the HWQFN-24 variant, and this temperature range is validated per absolute maximum ratings in R01DS0193EJ0250 Section 2.1.
R5F10379ANA#05 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, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10379ANA#05 FAQ
1.How can I place an order for R5F10379ANA#05 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10379ANA#05 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 R5F10379ANA#05 reliable?
The price and inventory of R5F10379ANA#05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10379ANA#05 is usually 5 days.
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Once your R5F10379ANA#05 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 R5F10379ANA#05?
For technical support, including R5F10379ANA#05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10379ANA#05 requirements.
6.How does Aetrix verify that R5F10379ANA#05 is sourced from the original manufacturer or authorized distributors?
All R5F10379ANA#05 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 R5F10379ANA#05 meets industry standards.
7.What is the process for return or replacement of R5F10379ANA#05?
All R5F10379ANA#05 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10379ANA#05, 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 R5F10379ANA#05 part is unused and in its original packaging.
Return procedure for R5F10379ANA#05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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