Renesas R5F10379ANA#W5
- Part No.:
- R5F10379ANA#W5
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F10379ANA#W5.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 24HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10379ANA#W5 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It integrates 12 KB code flash, 768 B RAM, 10-bit 11-channel ADC, 4-channel 16-bit TAU timer, UART0, CSI00, and high-speed on-chip oscillator (1–24 MHz, ±5% accuracy). It targets battery-powered sensor nodes and smart home peripherals requiring <63 μA/MHz active current.
For engineers reviewing the R5F10379ANA#W5 datasheet, R5F10379ANA#W5 pinout, R5F10379ANA#W5 application, or R5F10379ANA#W5 equivalent, this page delivers verified specifications, validated pin functions, real-world use scenarios, and two confirmed alternative parts - all aligned with Renesas' R01DS0193EJ0250 Rev.2.50 documentation and official package mapping.
Technical Context
The R5F10379ANA#W5 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It operates across 1.8–5.5 V supply and supports HALT/STOP/SNOOZE low-power modes - critical for energy-constrained designs.
Its peripheral set excludes data flash memory and DMA (distinguishing it from R5F1027x variants), includes one UART channel, one simplified SPI (CSI00), no simplified I²C, and uses the dedicated low-speed on-chip oscillator (15 kHz) for watchdog timing. All I/O pins support TTL input buffers and configurable pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic 0.04167 µs min instruction time at 24 MHz |
| Code Flash / RAM | 12 KB flash (1 KB block size) + 768 B RAM; supports self-programming but no data flash |
| Operating Voltage | 1.8–5.5 V single supply; allows direct interface with 1.8/2.5/3.3 V logic without level shifters |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference; suitable for analog sensor signal acquisition |
| Timers | 4-channel 16-bit TAU (TO00–TO03), 12-bit interval timer, and window watchdog timer; enables PWM generation and precise timing control |
| Oscillators | High-speed on-chip oscillator (1–24 MHz, ±5% @ –40°C to +85°C) + 15 kHz low-speed oscillator; eliminates external crystal for basic timing |
| I/O Count | 22 total I/O pins (16 CMOS, 2 N-ch open-drain 6 V-tolerant, 4 CMOS input-only); supports key interrupt and different-potential interfacing |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5 mm pitch), exposed die pad (to be connected to VSS), compliant with PWQN0024KE-A footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog Input 16 / Programmable Clock/Buzzer Output / SPI Clock / I²C Clock | Multi-function pin supporting serial communication clocking, buzzer tone generation, or analog sensing |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog Input 17 / SPI Data In / UART Receive / I²C Data / Debug RX | Primary UART0 receive path and SPI slave input; also serves as debug interface input |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog Input 18 / SPI Data Out / UART Transmit / Debug TX | Dual-role UART0 transmit and SPI master output; enables firmware updates via TOOL interface |
| P13/ANI19/TI00/TO00/INTP2 | Port 1 bit 3 / Analog Input 19 / Timer Input 0 / Timer Output 0 / Interrupt Pin 2 | Configurable for edge-triggered capture (TI00), PWM output (TO00), or external interrupt sourcing |
| P14/ANI20/TI01/TO01/INTP3 | Port 1 bit 4 / Analog Input 20 / Timer Input 1 / Timer Output 1 / Interrupt Pin 3 | Second timer I/O pair supporting quadrature decoding or pulse-width measurement |
| P20/ANI0/AVREFP | Port 2 bit 0 / Analog Input 0 / ADC Reference Voltage Positive | Primary analog reference point; must be decoupled per layout guidelines for ADC accuracy |
| P21/ANI1/AVREFM | Port 2 bit 1 / Analog Input 1 / ADC Reference Voltage Minus | Differential reference input; used with AVREFP to enable ratiometric or differential ADC measurements |
| P22/ANI2 | Port 2 bit 2 / Analog Input 2 | Dedicated analog input channel; shares pin with no digital function - optimized for noise immunity |
| P23/ANI3 | Port 2 bit 3 / Analog Input 3 | Fourth dedicated analog input; supports temperature sensor readout when enabled |
| P40/KR0/TOOL0 | Port 4 bit 0 / Key Return 0 / Debug Interface I/O | Shared key-scan input and debug bidirectional line; requires external pull-up for key detection |
| P41/ANI22/SO01/SDA01/TI02/TO02/INTP1 | Port 4 bit 1 / Analog Input 22 / SPI Data Out / I²C Data / Timer Input 2 / Timer Output 2 / Interrupt Pin 1 | High-flexibility pin supporting analog sensing, SPI slave mode, or dual timer I/O with interrupt capability |
| P42/ANI21/SCK01/SCL01/TI03/TO03 | Port 4 bit 2 / Analog Input 21 / SPI Clock / I²C Clock / Timer Input 3 / Timer Output 3 | Enables second SPI interface (CSI01) or I²C clocking; also provides third timer I/O pair |
| P60/KR4/SCLA0/(TxD0) | Port 6 bit 0 / Key Return 4 / I²C Clock A / UART Transmit (remapped) | Primary I²C clock line; TxD0 remapping available via PIOR register for alternate UART routing |
| P61/KR5/SDAA0/(RxD0) | Port 6 bit 1 / Key Return 5 / I²C Data A / UART Receive (remapped) | Primary I²C data line; RxD0 remapping supported for flexible UART placement |
| P121/KR3/X1/(TI03)/(INTP3) | Port 12 bit 1 / Key Return 3 / Crystal Oscillator Input / Timer Input 3 / Interrupt Pin 3 | Crystal input pin; TI03/INTP3 functions available only when X1 is disabled via system control register |
| P122/KR2/X2/EXCLK/(TI02)/(INTP2) | Port 12 bit 2 / Key Return 2 / Crystal Oscillator Output / External Clock Input / Timer Input 2 / Interrupt Pin 2 | Crystal output or external clock source; TI02/INTP2 active only when oscillator is disabled |
| P125/KR1/SI01/RESET | Port 12 bit 5 / Key Return 1 / SPI Data In / Reset Input | Active-low reset pin with internal pull-up; SI01 function enabled only after reset release and configuration |
| P137/INTP0 | Port 13 bit 7 / Interrupt Pin 0 | Dedicated external interrupt input; supports wake-up from STOP mode with configurable edge sensitivity |
| VDD | Power Supply | Single 1.8–5.5 V supply; requires local 0.1 µF ceramic decoupling adjacent to pin |
| VSS | Ground | Reference ground for analog/digital domains; must connect to exposed die pad for thermal and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in coin-cell-powered devices |
| Flexible clocking | On-chip 1–24 MHz oscillator eliminates crystal cost and board space; ±5% accuracy sufficient for UART baud rate tolerance |
| Hardware-assisted debugging | On-chip debug interface supports full-speed breakpoints and real-time variable monitoring without external JTAG emulator |
| Integrated analog front-end | 10-bit 11-channel ADC with internal reference and temperature sensor reduces external component count for environmental monitoring |
| Robust I/O architecture | Configurable pull-up resistors, TTL input buffers, and 6 V-tolerant pins simplify interface to diverse sensors and actuators |
| Safe reset management | On-chip POR, LVD (12 selectable thresholds), and illegal-instruction reset ensure reliable startup and fault recovery |
Applications
| Smart Thermostat Sensor Node | Wireless Door Lock Controller |
|---|---|
Use Scenario: Battery-powered indoor climate sensor collecting temperature/humidity data every 30 seconds and transmitting via sub-GHz RF module. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, ADC conversion, low-power scheduling, and UART-based RF command framing. Use Value: 63 μA/MHz operation extends CR2032 battery life beyond 3 years; integrated 10-bit ADC eliminates external signal conditioning ICs. |
Use Scenario: Compact electronic deadbolt actuator with keypad entry, tamper detection, and BLE status reporting. IC Role / Device Role / Timing Role: Keypad scan controller, motor driver sequencer, and secure credential validation engine using on-chip RAM guard. Use Value: 22 GPIOs support 4×4 keypad matrix + solenoid control + tamper switch + LED indicators; key return (KR0–KR9) hardware accelerates scan cycle time. |
| Portable Medical Glucometer | Industrial Panel Meter Front-End |
Use Scenario: Handheld blood glucose meter with LCD display, button interface, and USB charging port. IC Role / Device Role / Timing Role: Analog signal conditioner for electrochemical strip reading, display driver, and USB enumeration handler. Use Value: Internal 1.45 V ADC reference ensures consistent strip voltage measurement across battery discharge; programmable clock output drives buzzer feedback. |
Use Scenario: DIN-rail mounted voltage/current monitor with 4-digit LED display and RS-485 Modbus interface. IC Role / Device Role / Timing Role: Isolated analog acquisition front-end, display multiplexing controller, and UART-to-RS485 protocol translator. Use Value: 11-channel ADC supports simultaneous voltage, current, and temperature monitoring; UART0 handles Modbus RTU framing with hardware parity generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10279ANA#W5 | Includes 2 KB data flash, DMA controller, CRC unit, and ±1% oscillator accuracy; same pinout and code flash size | Required for firmware-over-the-air (FOTA) updates or background data logging without halting main program execution | Select when non-volatile parameter storage or high-reliability checksum validation is mandatory |
| R5F10378ANA#W5 | Same package and core, but reduced 8 KB code flash and 512 B RAM; identical peripheral set and oscillator spec | Suitable for cost-sensitive designs with simpler firmware and fewer concurrent tasks or sensor channels | Choose to reduce BOM cost where memory headroom is not required and feature set matches exactly |
Compared with R5F10379ANA#W5, R5F10279ANA#W5 adds data flash and DMA at higher oscillator precision - ideal for field-upgradable systems - while R5F10378ANA#W5 trades memory capacity for lower unit cost without altering I/O or timing behavior.
Availability
R5F10379ANA#W5 is available at Aetrix Electronics and suitable for smart home sensors, portable medical devices, and industrial HMI front-ends requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F10379ANA#W5 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated consumer and industrial control applications - emphasizing energy efficiency, integration, and ease of development.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F10379ANA#W5?
The R5F10379ANA#W5 operates up to 24 MHz using its high-speed on-chip oscillator and supports a supply voltage range of 1.8 V to 5.5 V. At 24 MHz, minimum instruction execution time is 0.04167 µs. The device maintains full functionality across the entire voltage range, enabling direct interface with 1.8 V, 3.3 V, and 5 V logic families without level translation.
Does the R5F10379ANA#W5 include data flash memory or DMA capability?
No, the R5F10379ANA#W5 does not include data flash memory or DMA controller functionality. These features are present in the R5F1027x series but intentionally omitted from the R5F1037x family to reduce cost and power consumption. The R5F10379ANA#W5 relies on code flash for both program and parameter storage, and software-managed memory transfers.
How many analog input channels and what ADC resolution does the R5F10379ANA#W5 support?
The R5F10379ANA#W5 integrates an 11-channel, 10-bit successive-approximation ADC with internal 1.45 V reference voltage and dedicated AVREFP/AVREFM pins. Channels include ANI0–ANI3 and ANI16–ANI22, supporting simultaneous sampling configurations and temperature sensor readout when enabled in system control registers.
What serial interfaces are available on the R5F10379ANA#W5?
The R5F10379ANA#W5 provides one UART channel (UART0), one simplified SPI interface (CSI00), and no simplified I²C. It also supports full I²C bus communication via SCLA0/SDAA0 pins. The absence of simplified I²C distinguishes it from R5F1027x variants and aligns with its streamlined peripheral set for cost-optimized designs.
What package type and pin count does the R5F10379ANA#W5 use?
The R5F10379ANA#W5 uses a 24-pin HWQFN package (4 × 4 mm, 0.5 mm pitch) with exposed die pad, identified by Renesas part numbering suffix "ANA" and packaging code "#W5" for embossed tape. This footprint matches PWQN0024KE-A mechanical specification and supports automated SMT assembly with standard reflow profiles.
R5F10379ANA#W5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 18
- 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:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10379ANA#W5 FAQ
1.How can I place an order for R5F10379ANA#W5 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10379ANA#W5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of R5F10379ANA#W5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10379ANA#W5 is usually 5 days.
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5.How can I obtain technical support or documentation for R5F10379ANA#W5?
For technical support, including R5F10379ANA#W5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10379ANA#W5 requirements.
6.How does Aetrix verify that R5F10379ANA#W5 is sourced from the original manufacturer or authorized distributors?
All R5F10379ANA#W5 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#W5 meets industry standards.
7.What is the process for return or replacement of R5F10379ANA#W5?
All R5F10379ANA#W5 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10379ANA#W5, 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#W5 part is unused and in its original packaging.
Return procedure for R5F10379ANA#W5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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