Renesas R5F10EBDGNA#20
- Part No.:
- R5F10EBDGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F10EBDGNA#20.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 32HWQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F10EBDGNA#20 from Renesas Electronics is a 32-pin HWQFN-packaged 16-bit RL78/G1A microcontroller with 48 KB flash, 4 KB data flash, 2 KB RAM, 12-bit ADC (18 channels), and ultra-low power operation down to 0.57 µA in RTC+LVD halt mode. It integrates UART, I²C, SPI, LIN, RTC, PWM, and on-chip debug for embedded control in battery-powered industrial sensors and motor drives.
For engineers reviewing the R5F10EBDGNA#20 datasheet, R5F10EBDGNA#20 pinout, R5F10EBDGNA#20 application, or R5F10EBDGNA#20 equivalent, this page delivers verified specifications, package mapping, functional pin roles, real-world use cases, and validated alternative options - all confirmed against Renesas' official R01DS0151EJ0230 Rev.2.30 documentation.
Technical Context
The R5F10EBDGNA#20 implements the RL78 CPU core with Harvard architecture, 3-stage pipeline, and 86% of instructions executed in 1–2 cycles. It supports dual-clock domains: high-speed on-chip oscillator (up to 32 MHz ±1% over voltage/temperature) and 32.768 kHz subsystem clock for RTC.
Its peripheral set includes two serial array units (supporting UART, simplified SPI/CSI, and I²C), up to 8-channel 16-bit timer array, programmable buzzer/clock output, and key return (KR) inputs for keypad interfaces - all configurable via peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 41 DMIPS at 32 MHz; CISC with 3-stage pipeline and single-cycle 16×16 multiply |
| Memory | 48 KB code flash (1 KB blocks), 4 KB background data flash (1M erase cycles), 2 KB RAM with backup retention |
| Power | 1.6 V to 3.6 V operation; 0.57 µA halt current (RTC + LVD); 66 µA/MHz active current |
| Analog | 12-bit ADC with 18 input channels, 3.375 µs conversion time, internal 1.45 V reference, and on-chip temperature sensor |
| Timers & Clock | 8-channel 16-bit timer array, RTC with full calendar/alarm/watch correction, 12-bit interval timer, 15 kHz watchdog with window function |
| Communication | Up to 3 UARTs (7–9 bit), 6 I²C masters, 6 simplified SPI (CSI), 1 LIN interface, and serial interface IICA0 (SCLA0/SDAA0) |
| Package | 32-pin HWQFN (5 × 5 mm, 0.5 mm pitch); exposed die pad recommended to be connected to VSS |
Pinout & Package
32-pin plastic HWQFN (5 × 5 mm, 0.5 mm pitch) with exposed die pad. Pin functions are fully configurable via PIOR register; multiple alternate functions per pin enable flexible peripheral routing without PCB changes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P40/TOOL0 | On-chip debug interface | Primary debug I/O for programming and real-time trace; enables single-wire debug without dedicated JTAG pins |
| RESET | Active-low reset input | Asynchronous reset triggered by external low pulse or internal POR/LVD detection |
| P137/INTP0 | External interrupt input | Highest-priority interrupt source; supports edge-triggered wake-up from low-power modes |
| P20/ANI0/AVREFP | Analog input / ADC reference (+) | Primary analog input channel and positive reference for 12-bit ADC; supports 1.6 V minimum supply |
| P21/ANI1/AVREFM | Analog input / ADC reference (−) | Negative reference input for differential ADC measurements; enables ratiometric sensing accuracy |
| P02/ANI17/TxD1/TI00 | Multi-function I/O | Configurable as UART1 transmit, timer input, or analog input - selected via PIOR register at runtime |
| P50/ANI26/SI11/SDA11/INTP1 | Multi-function I/O | Supports SPI slave input, I²C data line, or interrupt input - eliminates need for external signal routing logic |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS to stabilize internal voltage regulator for analog/ADC stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 0.57 µA halt current with RTC + LVD active enables multi-year battery life in wireless sensor nodes |
| Background data flash | 4 KB data flash supports concurrent read-while-write operations, enabling firmware-over-the-air updates without halting application |
| Peripheral I/O redirection (PIOR) | Runtime reassignment of up to 10 peripheral functions per port group reduces PCB layer count and simplifies layout |
| Hardware CRC calculation | On-the-fly flash memory CRC verification meets IEC 60730 Class B safety requirements for industrial control |
| Programmable clock/buzzer output | Two independent outputs (PCLBUZ0/PCLBUZ1) generate precise frequencies from 256 Hz to 10 MHz for timing or audible feedback |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local display. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based scheduling, UART-to-Bluetooth bridge, and low-power sleep/wake cycles. Use Value: 0.57 µA halt current extends CR2032 battery life beyond 5 years; 18-channel ADC supports multi-sensor fusion without external mux. |
Use Scenario: Residential HVAC controller with keypad interface, display driver, and relay actuation. IC Role / Device Role / Timing Role: Central MCU handling KR-based keypad scan, PWM fan speed control, RTC calendar, and relay timing with watchdog supervision. Use Value: Integrated key return (KR0–KR5) eliminates external keypad matrix decoder; 8-channel timer array drives 6 independent PWM outputs for multi-zone control. |
| Brushless DC Motor Drive | Portable Medical Monitor |
|
Use Scenario: Compact BLDC driver for cordless power tools with hall-effect commutation and current sensing. IC Role / Device Role / Timing Role: Real-time motor controller executing commutation logic, ADC-based current feedback, and 3-phase PWM generation. Use Value: 16-bit timer array with complementary PWM outputs enables precise dead-time insertion; 3.375 µs ADC conversion supports >10 kHz current loop bandwidth. |
Use Scenario: Handheld pulse oximeter with analog front-end, OLED display, and USB charging interface. IC Role / Device Role / Timing Role: Signal acquisition MCU performing synchronized ADC reads, LED drive timing, and USB protocol handling via UART-to-USB bridge. Use Value: On-chip temperature sensor calibrates LED intensity drift; 1.6 V minimum operation ensures functionality during battery brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10EBDANA#U0 | Same 32-pin HWQFN package, identical 48 KB flash/2 KB RAM, but consumer-grade (−40°C to +85°C) vs. industrial (−40°C to +105°C) | Not qualified for extended-temperature industrial environments requiring continuous operation above 85°C | Select R5F10EBDANA#U0 only for cost-sensitive consumer designs where ambient temperature remains below 85°C |
| R5F10EGDGNA#20 | 48-pin HWQFN variant with same 48 KB flash/2 KB RAM, but adds 6 additional I/O pins, 4 more ADC channels (24 total), and extra UART/I²C interfaces | Enables higher peripheral density for complex HMI or multi-sensor systems where pin count is limiting | Choose R5F10EGDGNA#20 when design requires ≥42 GPIO, ≥24 ADC channels, or dual UART/I²C buses - accepts larger 7×7 mm footprint |
Compared with R5F10EBDGNA#20, R5F10EBDANA#U0 sacrifices industrial temperature rating for lower cost, while R5F10EGDGNA#20 trades compact 5×5 mm size for expanded I/O and analog resources - both retain identical core performance and peripheral IP.
Availability
R5F10EBDGNA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, BLDC motor drives, and portable medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F10EBDGNA#20 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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G1A product line targets ultra-low-power embedded control applications, combining energy efficiency, integrated analog peripherals, and functional safety features for cost-sensitive industrial and consumer devices.
FAQ
What is the maximum operating frequency and core performance of the R5F10EBDGNA#20?
The R5F10EBDGNA#20 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS of processing performance. Its RL78 16-bit CPU core executes 86% of instructions in just 1–2 clock cycles due to its optimized 3-stage pipeline and CISC architecture - making it suitable for real-time control tasks in resource-constrained designs.
Does the R5F10EBDGNA#20 support hardware-based functional safety features?
Yes, the R5F10EBDGNA#20 includes multiple IEC 60730 Class B-compliant safety mechanisms: flash memory CRC calculation, RAM parity error checking, SFR write protection, illegal memory access detection, clock stop/frequency monitoring, and ADC self-test - all implemented in hardware to reduce software certification burden.
How many analog input channels does the R5F10EBDGNA#20 support, and what is its ADC resolution?
The R5F10EBDGNA#20 integrates a 12-bit successive approximation ADC with 18 configurable analog input channels (ANI0–ANI17). It achieves a 3.375 µs conversion time, supports 1.6 V minimum supply, and includes an internal 1.45 V reference voltage and on-chip temperature sensor for calibration-critical applications.
What communication interfaces are available on the R5F10EBDGNA#20?
The R5F10EBDGNA#20 provides up to 3 UARTs (7–9 bit), 6 I²C master interfaces, 6 simplified SPI (CSI) channels, and 1 LIN interface. It also includes dedicated IICA0 pins (SCLA0/SDAA0) and supports peripheral I/O redirection to assign these functions to multiple pin combinations without hardware changes.
What is the industrial temperature range and packaging specification for the R5F10EBDGNA#20?
The R5F10EBDGNA#20 is rated for −40°C to +105°C operation and housed in a 32-pin HWQFN package (5 × 5 mm, 0.5 mm pitch) with an exposed die pad. The 'G' in the part number denotes industrial qualification, and the '#20' suffix indicates tray packaging - matching Renesas' official ordering code definition in R01DS0151EJ0230.
R5F10EBDGNA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G1A
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
- 20
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 3K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 3.6V
- Data Converters:
- A/D 18x8/12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10EBDGNA#20 FAQ
1.How can I place an order for R5F10EBDGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10EBDGNA#20 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 R5F10EBDGNA#20 reliable?
The price and inventory of R5F10EBDGNA#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F10EBDGNA#20 is usually 5 days.
3.What payment methods are accepted for R5F10EBDGNA#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F10EBDGNA#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F10EBDGNA#20?
R5F10EBDGNA#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F10EBDGNA#20 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 R5F10EBDGNA#20?
For technical support, including R5F10EBDGNA#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F10EBDGNA#20 requirements.
6.How does Aetrix verify that R5F10EBDGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F10EBDGNA#20 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 R5F10EBDGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F10EBDGNA#20?
All R5F10EBDGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10EBDGNA#20, 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 R5F10EBDGNA#20 part is unused and in its original packaging.
Return procedure for R5F10EBDGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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