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Renesas R5F51103AGNF#20
- Part No.:
- R5F51103AGNF#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
R5F51103AGNF#20.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 40HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
R5F51103AGNF#20 from Renesas is a 32-bit RX CPU core microcontroller operating at up to 32 MHz (50 DMIPS), featuring 64 Kbytes of on-chip flash memory, 10 Kbytes of SRAM, and integrated peripherals including a 12-bit A/D converter (10 channels), RTC, I²C, SCI, RSPI, and MTU2 timers - deployed in compact 40-pin HWQFN (6 × 6 mm, 0.5 mm pitch) for space-constrained industrial sensor nodes and low-power HMI control units.
For engineers reviewing the R5F51103AGNF#20 datasheet, R5F51103AGNF#20 pinout, R5F51103AGNF#20 application, or R5F51103AGNF#20 equivalent, key selection criteria include its −40 to +105°C extended temperature grade, 1.8–3.6 V single-supply operation, software standby mode (0.35 μA), 4.8 μs wake-up time, and hardware support for IEC 60730 functional safety compliance.
Technical Context
The R5F51103AGNF#20 implements a CISC Harvard architecture with five-stage pipeline and variable-length instruction encoding, enabling ultra-compact code density. Its 32-bit RX core supports 64-bit accumulator results and single-cycle 32×32 multiplication, paired with dedicated on-chip oscillators (32 MHz ±1%, 15 kHz IWDT, 32.768 kHz sub-clock) and clock accuracy measurement (CAC) for real-time validation.
Peripheral integration includes a 12-bit A/D converter with 1.0 μs minimum conversion time and double-trigger capability for motor sensing, two CMT timers, four-channel MTU2 with input capture/output compare/phase counting, and three SCI channels (two SCIe + one SCIf) supporting asynchronous, clock-synchronous, simple I²C, and simple SPI modes - all mapped to multiplexed pins via the Multi-function Pin Controller (MPC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS @32 MHz - enables deterministic real-time control with high code efficiency. |
| Memory | 64 Kbytes flash (no wait states @32 MHz), 10 Kbytes SRAM - supports full-speed execution and local data buffering without external memory. |
| A/D Converter | 12-bit resolution, 10 channels, 1.0 μs min conversion time - suitable for fast analog feedback in closed-loop motor or power supply control. |
| Operating Voltage | 1.8–3.6 V single supply - simplifies power design and enables direct battery operation (e.g., 2×Li-ion or 3×AA). |
| Low-Power Modes | Software standby (0.35 μA), deep sleep, sleep - enables multi-year battery life in wireless sensor endpoints. |
| Temperature Range | −40 to +105°C (G-grade) - qualified for under-hood automotive, industrial drives, and factory automation environments. |
| Communication | SCI ×3 (asynchronous/clock-sync/simple I²C/simple SPI), RIIC ×1 (400 kbps), RSPI ×1 (16 Mbps) - provides flexible serial connectivity for sensor fusion and host interface. |
Pinout & Package
Packaged in 40-pin HWQFN (PWQN0040KC-A), 6 × 6 mm body, 0.5 mm pitch, with exposed thermal pad recommended to be connected to VSS for thermal management and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual VCC pins (pins 15, 38) and dual VSS pins (pins 14, 40) enable low-impedance power delivery and noise isolation for analog/digital domains. |
| XTAL / EXTAL | Crystal oscillator input/output | Supports external 1–20 MHz crystal for precise timing; EXTAL accepts external clock source if crystal not used. |
| AVCC0 / AVSS0 / VREFH0 / VREFL0 | Analog power and reference | Separate analog supply and reference pins (pins 9, 10, 11, 12) isolate ADC noise and allow ratiometric or absolute voltage measurements. |
| P14–P17, P26–P27, P30–P32, P35, PH0–PH3, PA0–PA6, PB0, PB3, PC4, PE0–PE4 | General-purpose I/O | 28 configurable GPIOs (5-V tolerant, open-drain capable, pull-up selectable) - sufficient for button/LED interfaces, digital sensors, and bus control signals. |
| AN000–AN004, AN006, AN008–AN010 | Analog input | 10 dedicated ADC input pins (pins 21–25, 27–31 per Table 1.4 & Figure 1.6) - matches R5F51103AGNF#20's 10-channel A/D specification. |
| TXD1/RXD1, TXD12/RXD12, SCL0/SDA0, RSPCKA/MOSIA/MISOA/SSLA0 | Serial interface signals | SCI1, SCIf, RIIC, and RSPI peripheral signals routed to dedicated pins - enables concurrent communication without software bit-banging. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Support | On-chip CAC, IWDT, RAM test assist functions - reduces certification effort for Class B appliance control applications. |
| RTC with Calendar Mode | Real-time clock with leap-year correction and alarm interrupt - enables accurate timestamping and scheduled wake-up from software standby. |
| Multi-Source Clock System | Four independent on-chip oscillators (32 MHz, 4 MHz, 15 kHz, 32.768 kHz) plus external XTAL/EXTAL - eliminates need for external clock components in most designs. |
| Fast Wake-up | 4.8 μs recovery from software standby mode - allows rapid response to external events while maintaining ultra-low average current. |
| Hardware DTC | Data Transfer Controller with chain transfer and interrupt-triggered transfers - offloads CPU during peripheral-to-memory data movement (e.g., ADC buffer fills, UART DMA). |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node transmitting data wirelessly every 5 minutes. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, calibration, low-power scheduling, and UART/RSPI interface to RF module. Use Value: 0.35 μA software standby current and 4.8 μs wake-up enable >5-year battery life with CR2032; 12-bit ADC supports high-resolution analog sensing. | Use Scenario: Residential HVAC thermostat with LCD, touch keys, ambient/remote temperature sensing, and Wi-Fi connectivity. IC Role / Device Role / Timing Role: Primary MCU managing UI rendering, sensor polling, PID loop execution, and serial communication to Wi-Fi module. Use Value: 64 Kbytes flash stores full UI stack + control firmware; RTC calendar mode enables precise scheduling of heating cycles and daylight savings adjustment. |
| Motor Drive Feedback Unit | Factory Automation I/O Module |
Use Scenario: Compact BLDC motor controller add-on board measuring phase currents and rotor position for closed-loop commutation. IC Role / Device Role / Timing Role: Dedicated feedback processor capturing ADC samples synchronized to PWM edges via MTU2 triggers. Use Value: Double-trigger A/D mode captures duplicate samples for noise rejection; 1.0 μs conversion time supports >100 kHz sampling rates for high-speed motor control. | Use Scenario: DIN-rail mounted digital I/O expansion module with 8-channel isolated inputs and 4-channel relay outputs. IC Role / Device Role / Timing Role: Central logic unit interpreting Modbus RTU commands over RS485 (via SCI), scanning inputs, and driving output drivers. Use Value: −40 to +105°C rating ensures reliability in uncooled control cabinets; 32 MHz CPU handles protocol parsing and state machine updates within tight scan cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51103ADNF#U0 | Same package and pinout, but rated for −40 to +85°C (D-grade) and lacks IEC 60730 support features (CAC, enhanced IWDT). | Suitable for commercial-grade consumer electronics where extended temperature and safety certification are unnecessary. | Select when cost sensitivity outweighs industrial temperature or functional safety requirements. |
| R5F51104AGNF#U0 | Same package and temperature grade, but with 96 Kbytes flash and 16 Kbytes RAM - no change to peripheral count or A/D channel count. | Preferred for applications requiring larger firmware image (e.g., OTA update capability, richer UI, or additional protocol stacks). | Choose when firmware size exceeds 64 Kbytes or future scalability demands more RAM for data logging or network buffers. |
Compared with R5F51103ADNF#U0, the R5F51103AGNF#20 adds extended temperature operation and IEC 60730 compliance features; compared with R5F51104AGNF#U0, it trades flash/RAM capacity for lower cost and smaller memory footprint - making R5F51103AGNF#20 optimal for cost-sensitive, thermally demanding, safety-aware embedded control.
Availability
R5F51103AGNF#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, motor feedback units, and factory automation I/O modules requiring stable component supply across long production lifecycles.
Supply support for R5F51103AGNF#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.
The RX110 Group, including the R5F51103AGNF#20, is designed for cost-sensitive, low-power embedded control applications demanding high code efficiency, rich analog integration, and functional safety readiness - targeting industrial automation, building controls, and appliance systems.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51103AGNF#20?
The R5F51103AGNF#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. This is achieved by the 32-bit RX CPU core with five-stage pipeline, single-cycle 32×32 multiplication, and 64-bit accumulator - enabling deterministic real-time execution for control loops and sensor processing without external acceleration.
Does the R5F51103AGNF#20 support IEC 60730 functional safety compliance?
Yes, the R5F51103AGNF#20 includes hardware features required for Class B IEC 60730 compliance: clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with dedicated 15 kHz oscillator, and built-in functions to assist RAM testing. These reduce software overhead and certification effort for household appliance and industrial control applications.
How many A/D converter channels does the R5F51103AGNF#20 have, and what is its conversion speed?
The R5F51103AGNF#20 integrates a 12-bit A/D converter with 10 input channels (AN000–AN004, AN006, AN008–AN010). Its minimum conversion time is 1.0 μs when ADCLK runs at 32 MHz - enabling high-speed sampling for motor current sensing, power monitoring, or fast-response environmental measurements.
What package type and dimensions does the R5F51103AGNF#20 use?
The R5F51103AGNF#20 uses the PWQN0040KC-A package: a 40-pin HWQFN with 6 × 6 mm body size, 0.5 mm pin pitch, and exposed thermal pad. The pad must be connected to VSS for optimal thermal dissipation and EMI suppression - critical for stable operation in compact, sealed enclosures.
What communication interfaces are available on the R5F51103AGNF#20?
The R5F51103AGNF#20 provides SCI ×3 (two SCIe + one SCIf), RIIC ×1 (I²C/SMBus, up to 400 kbps), and RSPI ×1 (SPI, up to 16 Mbps). All interfaces support multiple modes (asynchronous, clock-synchronous, simple I²C, simple SPI) and are fully hardware-accelerated - eliminating CPU load during serial data transfer in R5F51103AGNF#20-based designs.
R5F51103AGNF#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 40-WFQFN Exposed Pad
- Series:
- RX110
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51103AGNF#20 FAQ
1.How can I place an order for R5F51103AGNF#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51103AGNF#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 R5F51103AGNF#20 reliable?
The price and inventory of R5F51103AGNF#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51103AGNF#20 is usually 5 days.
3.What payment methods are accepted for R5F51103AGNF#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51103AGNF#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51103AGNF#20?
R5F51103AGNF#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51103AGNF#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 R5F51103AGNF#20?
For technical support, including R5F51103AGNF#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51103AGNF#20 requirements.
6.How does Aetrix verify that R5F51103AGNF#20 is sourced from the original manufacturer or authorized distributors?
All R5F51103AGNF#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 R5F51103AGNF#20 meets industry standards.
7.What is the process for return or replacement of R5F51103AGNF#20?
All R5F51103AGNF#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51103AGNF#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 R5F51103AGNF#20 part is unused and in its original packaging.
Return procedure for R5F51103AGNF#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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