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Renesas R5F51103ADNE#20
- Part No.:
- R5F51103ADNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F51103ADNE#20.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,248
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Product details
Overview
R5F51103ADNE#20 from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 64 Kbytes of on-chip flash, 10 Kbytes of SRAM, 14-channel 12-bit A/D converter (1.0 µs min conversion), RTC, and dual SCI + I²C + RSPI interfaces - deployed in industrial sensor nodes requiring low-power, deterministic timing, and integrated analog acquisition.
For engineers reviewing the R5F51103ADNE#20 datasheet, R5F51103ADNE#20 pinout, R5F51103ADNE#20 application, or R5F51103ADNE#20 equivalent, key selection criteria include its HWQFN-48 package (7 × 7 mm, 0.5 mm pitch), −40 to +85°C temperature grade, software standby current of 0.35 μA, and support for IEC 60730-compliant safety functions including CAC and IWDT.
Technical Context
The R5F51103ADNE#20 implements a CISC Harvard architecture with five-stage pipeline and variable-length instructions, enabling ultra-compact code and single-cycle instruction execution. Its clock system integrates high-speed (32 MHz ±1%), sub-clock (32.768 kHz), and IWDT-dedicated (15 kHz) oscillators with on-chip frequency accuracy measurement (CAC).
Peripheral integration includes MTU2 (4×16-bit timer channels with input capture/output compare/phase counting), CMT (2×16-bit), SCIe (2 channels), SCIf (1 channel), RIIC (1 channel), RSPI (1 channel), and S12AD (14-channel 12-bit ADC with double-trigger mode for motor control). All peripherals operate synchronously with configurable PCLK up to 32 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 32 MHz max, 50 DMIPS, 64-bit accumulator |
| Memory | 64 Kbytes flash (no wait states @32 MHz), 10 Kbytes SRAM |
| A/D Converter | 12-bit resolution, 14 channels, 1.0 µs min conversion time, double-trigger mode |
| Timers | MTU2 (4×16-bit), CMT (2×16-bit), RTC with calendar/leap-year support |
| Communication | SCIe ×2, SCIf ×1, RIIC ×1 (400 kbps), RSPI ×1 (16 Mbps) |
| Power & Temp | 1.8–3.6 V supply; software standby: 0.35 μA; operating range: −40 to +85°C |
| Safety Features | IEC 60730 support: CAC, IWDT, RAM test assist, voltage detection (LVDA) |
Pinout & Package
Packaged in a 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm body, 0.5 mm pitch, with exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: digital (VCC/VSS) and analog (AVCC0/AVSS0/VREFH0/VREFL0) |
| XTAL / EXTAL | Main clock oscillator interface | Supports external crystal up to 20 MHz or direct clock input |
| XCIN / XCOUT | Sub-clock oscillator interface | Drives 32.768 kHz RTC crystal; enables calendar mode and wake-from-standby |
| MTIOC0A–D, MTIOC1A–B, MTIOC2A–B | MTU2 timer I/O | Configurable PWM, input capture, phase counting, and A/D trigger generation |
| SCI1/SCI5/SCI12 pins (TXD/RXD/SCK/SSDA/SSCL) | Serial interface signals | Shared pins support asynchronous, clock-synchronous, simple I²C, and simple SPI modes |
| AN000–AN015 (14 used) | Analog inputs | 12-bit A/D converter inputs with selectable reference and 5-V tolerant buffers |
| RES# | Active-low reset input | Asynchronous hardware reset; supports power-on, LVD, and IWDT-initiated resets |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | Software standby mode draws only 0.35 μA with RTC active and 4.8 μs wake-up time |
| IEC 60730 compliance | Integrated CAC, IWDT, RAM test assist, and dual-voltage detection circuits for Class B safety |
| Deterministic real-time response | Fast interrupt handling, 65-vector ICuB controller, and DTC for zero-CPU-load peripheral transfers |
| Flexible clocking | Four independent clock sources (HSI, LSI, sub-clock, external) with programmable dividers and PCLK/ICLK/FCLK domain separation |
| Motor control readiness | 12-bit A/D with double-trigger mode and MTU2 phase-counting capability for position/speed feedback |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and air quality over LoRaWAN. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, data preprocessing, RTC-timed wake-up, and secure wireless transmission. Use Value: 0.35 μA software standby current extends battery life to >5 years; integrated 12-bit A/D eliminates external signal conditioning for analog sensors. | Use Scenario: Residential HVAC controller with display, touch interface, and local PID loop execution. IC Role / Device Role / Timing Role: Real-time system controller coordinating UI updates, sensor reads, relay actuation, and communication with cloud gateway. Use Value: 32 MHz RX core delivers deterministic 50 DMIPS for concurrent UI rendering and closed-loop control; RTC with leap-year support ensures accurate scheduling. |
| Energy Meter Front-End | Appliance Motor Control Module |
Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, kWh calculation, and tamper detection. IC Role / Device Role / Timing Role: Safety-certified data acquisition and computation unit with IEC 60730 runtime diagnostics. Use Value: On-chip CAC validates clock integrity; IWDT and LVDA enable fail-safe shutdown; 14-channel A/D supports multi-phase sampling. | Use Scenario: Brushless DC motor driver in washing machine or HVAC blower with hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Motion controller generating PWM, capturing rotor position, and executing commutation logic. Use Value: MTU2 phase-counting mode directly interprets hall sensor edges; double-trigger A/D captures simultaneous phase currents for FOC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51103AGNE#U0 | Same silicon, extended temperature grade (−40 to +105°C); identical pinout and firmware compatibility | Required for under-hood automotive or high-ambient industrial environments | Select when ambient operating temperature exceeds +85°C |
| R5F51104ADNE#U0 | 96 Kbytes flash, 16 Kbytes RAM; otherwise identical peripheral set and package | Suitable for applications needing larger firmware image or data buffers (e.g., OTA update support) | Select when firmware size exceeds 64 Kbytes or additional SRAM is required for buffering |
Compared with R5F51103ADNE#20, the R5F51103AGNE#U0 offers higher thermal resilience without changing layout or firmware, while R5F51104ADNE#U0 provides headroom for feature-rich firmware at identical footprint and power profile.
Availability
R5F51103ADNE#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, energy meter front-ends, and appliance motor control modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F51103ADNE#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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The R5F51103ADNE#20 belongs to the RX110 Group - a family of ultra-low-power 32-bit MCUs designed for cost-sensitive, space-constrained industrial and consumer devices requiring IEC 60730 compliance and integrated analog peripherals.
FAQ
What is the maximum operating frequency and performance rating of the R5F51103ADNE#20?
The R5F51103ADNE#20 operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. Its RX CPU core features a five-stage pipeline, variable-length instruction encoding, and single-cycle execution for most basic instructions - enabling efficient code density and deterministic real-time response critical for industrial control loops and sensor processing tasks executed by the R5F51103ADNE#20.
Which package type and dimensions does the R5F51103ADNE#20 use?
The R5F51103ADNE#20 uses the PWQN0048KB-A package: a 48-pin HWQFN with 7 × 7 mm body size, 0.5 mm pin pitch, and an exposed thermal pad. The datasheet specifies that the exposed pad must be connected to VSS for optimal thermal performance and electrical stability. This compact package supports high-density PCB layouts typical in space-constrained applications such as smart thermostats and portable industrial sensors using the R5F51103ADNE#20.
Does the R5F51103ADNE#20 support IEC 60730 functional safety requirements?
Yes, the R5F51103ADNE#20 includes dedicated hardware features for IEC 60730 Class B compliance: Clock Frequency Accuracy Measurement circuit (CAC), Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and dual-level voltage detection (LVDA). These are documented in the R01DS0202EJ0120 datasheet and enable certified self-test routines - making the R5F51103ADNE#20 suitable for safety-critical residential and industrial appliances.
How many A/D converter channels does the R5F51103ADNE#20 provide, and what is its speed?
The R5F51103ADNE#20 integrates a 12-bit successive-approximation A/D converter with up to 14 input channels (AN000–AN015, 14 used in this variant). Its minimum conversion time is 1.0 µs per channel when ADCLK runs at 32 MHz. It supports scan modes (single, continuous, group), double-trigger mode for redundant sampling, and external/start triggers from MTU timers - all essential for precision analog acquisition in motor control and sensor fusion applications built around the R5F51103ADNE#20.
What communication interfaces are available on the R5F51103ADNE#20?
The R5F51103ADNE#20 provides SCIe (2 channels), SCIf (1 channel), RIIC (1 channel supporting 400 kbps and SMBus), and RSPI (1 channel supporting up to 16 Mbps). Each SCI channel supports asynchronous, clock-synchronous, simple I²C, and simple SPI modes via shared pins. RSPI includes 128-bit TX/RX buffers and frame-based transfer. These interfaces enable flexible connectivity in systems such as energy meters, HVAC controllers, and industrial gateways using the R5F51103ADNE#20.
R5F51103ADNE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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:
- 34
- 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 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51103ADNE#20 FAQ
1.How can I place an order for R5F51103ADNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51103ADNE#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 R5F51103ADNE#20 reliable?
The price and inventory of R5F51103ADNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51103ADNE#20 is usually 5 days.
3.What payment methods are accepted for R5F51103ADNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51103ADNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51103ADNE#20?
R5F51103ADNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51103ADNE#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 R5F51103ADNE#20?
For technical support, including R5F51103ADNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51103ADNE#20 requirements.
6.How does Aetrix verify that R5F51103ADNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F51103ADNE#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 R5F51103ADNE#20 meets industry standards.
7.What is the process for return or replacement of R5F51103ADNE#20?
All R5F51103ADNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51103ADNE#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 R5F51103ADNE#20 part is unused and in its original packaging.
Return procedure for R5F51103ADNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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