Renesas R5F10EGDGNA#20
- Part No.:
- R5F10EGDGNA#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F10EGDGNA#20.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:975
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Product details
Overview
R5F10EGDGNA#20 from Renesas Electronics is a 48-pin HWQFN-packaged 16-bit RL78/G1A microcontroller with 48 KB flash, 4 KB data flash, 2 KB RAM, 12-bit ADC (28 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 - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F10EGDGNA#20 datasheet, R5F10EGDGNA#20 pinout, R5F10EGDGNA#20 application, or R5F10EGDGNA#20 equivalent, this page delivers verified electrical specs, validated package mapping, confirmed pin functions, real-world use cases, and two technically documented alternative parts for design continuity.
Technical Context
The R5F10EGDGNA#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 (32 MHz ±1% over voltage/temperature) and subsystem crystal input (32.768 kHz).
Its peripheral set includes eight 16-bit timer channels, one RTC with calendar/alarm, two programmable clock/buzzer outputs, and DMA with two fully configurable channels - all operating within 1.6 V to 3.6 V supply range and −40 °C to +105 °C industrial temperature grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RL78 CPU delivering 41 DMIPS at 32 MHz; CISC Harvard architecture with 3-stage pipeline |
| Flash / Data Flash / RAM | 48 KB code flash (1 KB blocks), 4 KB background-operating data flash (1M erase cycles), 2 KB RAM with backup retention |
| Power Consumption | 66 µA/MHz active; 0.57 µA in Halt mode (RTC + LVD enabled); 0.7 mA Snooze mode (UART) |
| Analog Peripherals | 28-channel 12-bit ADC (3.375 µs conversion), internal 1.45 V reference, on-chip temperature sensor, AVREFP/AVREFM inputs |
| Communication Interfaces | 3 × UART (7-/8-/9-bit), up to 6 × I²C master, up to 6 × CSI/SPI, 1 × LIN, 3 × serial array units supporting simultaneous protocols |
| Timers & Clock | 8 × 16-bit timer channels, 1 × RTC with full calendar/alarm/watch correction, 1 × 12-bit interval timer, 1 × 15 kHz window watchdog |
| Operating Range | 1.6 V to 3.6 V supply; −40 °C to +105 °C ambient temperature (industrial grade G-suffix) |
Pinout & Package
Package: 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch), exposed die pad (recommended to connect to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P02/ANI17/TxD1/TI00 | Port 0 bit 2 / Analog input 17 / UART1 transmit / Timer input 0 | Multi-function pin supporting serial comms, analog sensing, and timing capture - selectable via PIOR register |
| P03/ANI16/RxD1/TO00 | Port 0 bit 3 / Analog input 16 / UART1 receive / Timer output 0 | Enables full-duplex UART1 with hardware timer output capability; KR1 key return function also available |
| P10/ANI18/SCK00/SCL00 | Port 1 bit 0 / Analog input 18 / SPI0 clock / I²C0 clock | Shared signal for synchronous serial interfaces - automatic mode switching based on peripheral enable settings |
| P11/ANI20/SI00/SDA00/RxD0/TOOLRxD | Port 1 bit 1 / Analog input 20 / SPI0 data in / I²C0 data / UART0 receive / Debug RX | Combines analog sensing, serial data input, and on-chip debug interface - reduces external component count |
| P12/ANI21/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input 21 / SPI0 data out / I²C0 data / UART0 transmit / Debug TX | Supports simultaneous UART0 comms and SPI/I²C master operation; enables tool-assisted firmware updates |
| P30/ANI27/SCK11/SCL11/INTP3/RTC1HZ | Port 3 bit 0 / Analog input 27 / SPI1 clock / I²C1 clock / Interrupt 3 / RTC 1 Hz output | Dedicated RTC pulse output simplifies timekeeping in low-power applications without external dividers |
| P31/ANI29/TI03/TO03/INTP4 | Port 3 bit 1 / Analog input 29 / Timer input 3 / Timer output 3 / Interrupt 4 | Enables precise edge-triggered timing and PWM generation on same pin - critical for motor control loops |
| P60/SCLA0 | Port 6 bit 0 / I²C0 clock output (open-drain) | Drives I²C bus clock line with internal pull-up; compatible with standard 100/400 kHz I²C timing requirements |
| P61/SDAA0 | Port 6 bit 1 / I²C0 data I/O (open-drain) | Bi-directional I²C data line with slew-rate control - ensures reliable communication across noisy industrial environments |
| REGC | Regulator capacitance terminal | Must be connected to VSS via 0.47–1 µF capacitor to stabilize internal voltage regulator for analog/RTC stability |
| RESET | Active-low reset input | Accepts external reset assertion; internally tied to POR and LVD circuits - no external pull-up required |
| VDD / VSS / AVDD / AVSS | Digital power / Digital ground / Analog power / Analog ground | Separate analog/digital supplies reduce noise coupling; AVDD/AVSS must be decoupled near ADC reference pins |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Halt Mode | 0.57 µA current draw with RTC and LVD active - enables multi-year battery life in remote monitoring devices |
| Self-Programming Flash | On-the-fly reprogramming of code flash with secure boot swap and flash shield window - supports field firmware updates |
| Hardware CRC Engine | Integrated flash memory CRC calculation - meets IEC/UL 60730 Class B functional safety requirements |
| Peripheral I/O Redirection (PIOR) | Runtime remapping of up to 10 peripheral functions per port - increases PCB layout flexibility and reduces routing congestion |
| 32 MHz On-Chip Oscillator | +1% accuracy across 1.8–3.6 V and −20–+85 °C - eliminates need for external crystal in cost-sensitive applications |
| Programmable Clock/Buzzer Outputs | Two independent outputs supporting frequencies from 256 Hz to 10 MHz - replaces discrete oscillators and buzzer drivers |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure sensor collecting data every 30 seconds and transmitting via UART-to-LoRa module. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake scheduling, UART transmission, and ultra-low-power sleep states. Use Value: 0.57 µA halt current extends CR2032 battery life beyond 5 years; integrated 12-bit ADC eliminates external signal conditioning ICs. |
Use Scenario: Residential HVAC control unit requiring precise temperature regulation, user interface polling, and relay actuation. IC Role / Device Role / Timing Role: Central MCU handling PID loop execution, touch-key scanning (KR0–KR5), display refresh, and 24 V AC relay drive timing. Use Value: 8 × 16-bit timers support concurrent PWM fan control, buzzer feedback, and relay debouncing - no external timer IC needed. |
| Portable Medical Monitor | Industrial PLC I/O Module |
|
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on OLED. IC Role / Device Role / Timing Role: Signal acquisition processor performing synchronized 12-bit ADC conversions, digital filtering, and SPI-driven OLED update. Use Value: 28-channel ADC with internal reference supports multi-wavelength optical sensing; 32 MHz core enables real-time FFT processing. |
Use Scenario: DIN-rail mounted I/O expansion module converting 4–20 mA analog inputs and driving 24 V DC outputs in factory automation. IC Role / Device Role / Timing Role: Isolated interface controller managing analog input scaling, digital output timing, and Modbus RTU over RS-485. Use Value: Dual UARTs allow simultaneous host communication and isolated fieldbus interface; LVD detection prevents erratic behavior during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F10EGCGNA#20 | Same 48-pin HWQFN package, identical peripherals, but 32 KB flash and 3 KB RAM instead of 48 KB/2 KB | Suitable for simpler control tasks with smaller firmware footprint and lower RAM usage | Select when application code size remains under 30 KB and real-time data buffering needs are modest |
| R5F10ELDGFB#50 | 64-pin LFQFP package, 48 KB flash, 4 KB RAM, adds EVDD0/EVSS0 for enhanced noise isolation and 4 extra analog inputs (ANI13–ANI15) | Preferred for high-noise industrial environments requiring separate analog/digital power domains and expanded I/O | Choose when board layout allows larger package and system-level EMI mitigation is critical |
Compared with R5F10EGDGNA#20, R5F10EGCGNA#20 reduces memory capacity while maintaining identical low-power performance and pin compatibility, whereas R5F10ELDGFB#50 trades compactness for enhanced analog integrity and I/O scalability - enabling migration paths both downward (code size) and upward (noise immunity).
Availability
R5F10EGDGNA#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, portable medical monitors, and PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for R5F10EGDGNA#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G1A family delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications demanding long battery life, robust analog integration, and functional safety compliance.
FAQ
What is the maximum operating frequency and core performance of the R5F10EGDGNA#20?
The R5F10EGDGNA#20 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS. Its RL78 CPU core executes 86% of instructions in 1–2 clock cycles due to its 3-stage pipeline and CISC Harvard architecture - enabling deterministic real-time response in control applications.
Does the R5F10EGDGNA#20 support hardware-based functional safety features?
Yes, the R5F10EGDGNA#20 includes multiple IEC/UL 60730-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 - enabling Class B certification in safety-critical designs.
How many analog input channels does the R5F10EGDGNA#20 support, and what is its ADC resolution?
The R5F10EGDGNA#20 supports 28 analog input channels with 12-bit resolution and a minimum conversion time of 3.375 µs. It includes internal voltage reference (1.45 V), AVREFP/AVREFM inputs, and an on-chip temperature sensor - eliminating need for external reference or calibration components.
What package type and pin count does the R5F10EGDGNA#20 use?
The R5F10EGDGNA#20 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed die pad recommended to be connected to VSS. This compact industrial-grade package supports high-density PCB layouts while maintaining thermal performance in extended temperature operation.
Can the R5F10EGDGNA#20 operate from a single 1.8 V supply, and what is its lowest power consumption mode?
Yes, the R5F10EGDGNA#20 operates across 1.6 V to 3.6 V, including stable 1.8 V operation. Its lowest power mode is Halt with RTC + LVD enabled, consuming just 0.57 µA - making it ideal for battery-backed real-time clock and event-wakeup applications in energy-constrained systems.
R5F10EGDGNA#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 32
- 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 24x8/12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F10EGDGNA#20 FAQ
1.How can I place an order for R5F10EGDGNA#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F10EGDGNA#20 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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Once your R5F10EGDGNA#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 R5F10EGDGNA#20?
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6.How does Aetrix verify that R5F10EGDGNA#20 is sourced from the original manufacturer or authorized distributors?
All R5F10EGDGNA#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 R5F10EGDGNA#20 meets industry standards.
7.What is the process for return or replacement of R5F10EGDGNA#20?
All R5F10EGDGNA#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F10EGDGNA#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 R5F10EGDGNA#20 part is unused and in its original packaging.
Return procedure for R5F10EGDGNA#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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