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Renesas R5F51104ADNE#20
- Part No.:
- R5F51104ADNE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
R5F51104ADNE#20.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 48HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,248
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Product details
Overview
R5F51104ADNE#20 from Renesas is a 32-bit RX CPU core microcontroller operating at up to 32 MHz (50 DMIPS), featuring 96 KB on-chip flash, 16 KB SRAM, 12-bit A/D converter with 14 channels, RTC, and dual SCI + I²C + RSPI interfaces. It targets low-power industrial sensing and control applications requiring deterministic real-time response and IEC 60730 compliance.
For engineers reviewing the R5F51104ADNE#20 datasheet, R5F51104ADNE#20 pinout, R5F51104ADNE#20 application, or R5F51104ADNE#20 equivalent, this page delivers verified specifications, package mapping, functional pin roles, and validated alternative options for embedded system design and BOM optimization.
Technical Context
The R5F51104ADNE#20 implements a CISC Harvard architecture with five-stage pipeline and variable-length instruction encoding, enabling ultra-compact code density. Its 64-bit accumulator supports single-cycle 32×32 multiplication, while the DTC enables interrupt-triggered data transfers without CPU intervention.
It integrates independent clock domains: ICLK (up to 32 MHz for CPU), PCLK (up to 32 MHz for peripherals), and FCLK (32 MHz for FlashIF), with dedicated oscillators including 32 MHz ±1% on-chip high-speed oscillator and 32.768 kHz sub-clock for RTC. Low-power operation includes software standby mode drawing 0.35 μA with 4.8 μs wake-up time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 50 DMIPS @ 32 MHz |
| Flash Memory | 96 KB, zero-wait-state access at 32 MHz, programmable at 1.8 V |
| SRAM | 16 KB, zero-wait-state access at full CPU speed |
| A/D Converter | 12-bit resolution, 14 input channels, 1.0 μs min conversion time, double-trigger mode |
| Communication | 2 × SCI (asynchronous/clock-sync/Smart Card), 1 × I²C (400 kbps), 1 × RSPI (16 Mbps) |
| Timers | 4-channel MTU2 (input capture/output compare/phase counting), 2-channel CMT |
| Operating Voltage | 1.8–3.6 V supply; 32 MHz max frequency enabled only at ≥2.7 V |
| Temperature Range | −40°C to +85°C (D-grade) |
Pinout & Package
Packaged in 48-pin HWQFN (PWQN0048KB-A), 7 × 7 mm, 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: VCC powers digital logic; VSS reference for all I/O and analog sections |
| AVCC0 / AVSS0 / VREFH0 / VREFL0 | Analog supply & reference | Isolated analog domain for 12-bit A/D; VREFH0/VREFL0 define full-scale range (e.g., 0–VCC) |
| XTAL / EXTAL | External crystal interface | Supports up to 20 MHz crystal; enables precise timing for RTC and system clock synchronization |
| XCIN / XCOUT | Sub-clock oscillator | 32.768 kHz crystal connection for battery-backed RTC calendar and low-power wake-up source |
| RES# | Active-low reset input | Asynchronous hardware reset; initiates power-on reset sequence and internal state initialization |
| MD | Mode selection | Fixed at power-up to configure single-chip operation; must remain static during runtime |
| P03, P14–P17, P26–P27, etc. | Multi-function I/O ports | 5-V tolerant, open-drain capable, pull-up configurable; assigned via MPC to SCI/I²C/RSPI/MTU functions |
| AN000–AN015 | Analog inputs | 14 dedicated pins (AN000–AN004, AN006, AN008–AN015) for A/D conversion; share physical pins with GPIO |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Class B support | Integrated CAC circuit, IWDT with dedicated 15 kHz oscillator, RAM test assist functions for safety-critical firmware |
| Low-power modes | Software standby (0.35 μA), deep sleep, and sleep modes - RTC and IWDT remain active during standby |
| Real-time clock (RTC) | Calendar count mode with leap-year correction, 30-second adjustment, and alarm-triggered exit from software standby |
| Data transfer controller (DTC) | Four transfer modes (normal/repeat/block/chain); triggered by any of 65 interrupts, eliminating CPU overhead for peripheral data movement |
| On-chip debugging | FINE interface compatible with E1 emulator; enables non-intrusive breakpoints, watchpoints, and real-time trace without debug port pin allocation |
| CRC calculator | Configurable polynomial (X⁸+X²+X+1, X¹⁶+X¹⁵+X²+1, X¹⁶+X¹²+X⁵+1); supports LSB/MSB-first for protocol-compliant checksum generation |
Applications
| Industrial Sensor Node | Smart Energy Metering |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor with wireless telemetry and local logging. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, RTC-timed sampling, CRC-secured data packaging, and SCI-based UART-to-LoRaWAN bridge. Use Value: 0.35 μA software standby current extends 10-year battery life; 12-bit A/D with 1.0 μs conversion enables fast multi-sensor polling; RTC alarm wakes MCU precisely every 15 minutes. |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, pulse counting, and HPLC communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, I²C EEPROM storage, RSPI HPLC PHY control, and IEC 60730 self-test routines. Use Value: Dual SCI channels support simultaneous HPLC and optical port comms; CAC validates clock accuracy for billing timestamp integrity; MTU2 captures zero-crossing events with phase counting. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Washing machine main board controlling motor drive, water level, temperature, and user interface. IC Role / Device Role / Timing Role: Real-time motor control hub using MTU2 PWM outputs, A/D for thermistor feedback, and SCI for display/panel communication. Use Value: Double-trigger A/D mode captures synchronized voltage/current samples for motor phase control; 5-V tolerant I/O interfaces directly with legacy appliance sensors and displays without level shifters. |
Use Scenario: Portable blood glucose monitor with electrochemical sensor, LCD, and USB charging. IC Role / Device Role / Timing Role: Safety-certified controller handling analog front-end signal conditioning, temperature-compensated calibration, and USB CDC virtual COM port. Use Value: Integrated temperature sensor feeds A/D for automatic gain/offset compensation; IWDT with dedicated oscillator ensures fail-safe shutdown on firmware hang; 32-byte unique ID enables device serialization and regulatory traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51104ADFL#30 | Same RX110 core, 96 KB flash, 16 KB SRAM, but in 48-pin LFQFP (PLQP0048KB-A) package | Requires PCB redesign due to larger footprint (7×7 mm QFN → 7×7 mm LQFP) and different thermal pad layout | Select when legacy LQFP assembly infrastructure exists or thermal management favors exposed pad-free routing |
| R5F51103ADNE#U0 | Identical PWQN0048KB-A package and pinout, but reduced to 64 KB flash and 10 KB SRAM | Valid for cost-sensitive designs where firmware size < 60 KB and RAM usage ≤ 8 KB; no peripheral reduction | Choose for BOM cost optimization without changing layout or firmware porting effort |
Compared with R5F51104ADNE#20, R5F51104ADFL#30 offers identical functionality in a through-hole-compatible LQFP, while R5F51103ADNE#U0 provides pin-compatible memory downscaling - both preserve the same peripheral set, clocking, and low-power behavior for seamless migration.
Availability
R5F51104ADNE#20 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy metering, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F51104ADNE#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 RX110 Group is designed for cost-sensitive, low-power embedded applications demanding real-time performance, functional safety support (IEC 60730), and rich analog/peripheral integration in compact packages.
FAQ
What is the maximum operating frequency and associated voltage requirement for the R5F51104ADNE#20?
The R5F51104ADNE#20 achieves its maximum 32 MHz operating frequency only when powered within the 2.7–3.6 V range. At 1.8–2.4 V, maximum frequency is limited to 8 MHz; at 2.4–2.7 V, it is 16 MHz. This voltage-frequency scaling ensures reliable operation across wide supply conditions while minimizing dynamic power consumption in the R5F51104ADNE#20.
Does the R5F51104ADNE#20 support IEC 60730 Class B compliance out of the box?
Yes, the R5F51104ADNE#20 includes hardware features required for IEC 60730 Class B: Clock Frequency Accuracy Measurement (CAC) circuit, Independent Watchdog Timer (IWDT) with dedicated 15 kHz oscillator, RAM test assist functions, and voltage monitoring circuits. These are integrated into the silicon and documented in the R5F51104ADNE#20 hardware manual for direct use in safety firmware certification.
How many A/D input channels does the R5F51104ADNE#20 provide, and what is the minimum conversion time?
The R5F51104ADNE#20 integrates a 12-bit A/D converter with 14 usable input channels (AN000–AN004, AN006, AN008–AN015). At maximum ADCLK of 32 MHz, the minimum conversion time per channel is 1.0 μs. The double-trigger function allows synchronized sampling of two channels - a capability confirmed in the R5F51104ADNE#20 datasheet for motor control applications.
What communication interfaces are available on the R5F51104ADNE#20, and how are they allocated across pins?
The R5F51104ADNE#20 provides two SCI modules (SCI1/SCI5 and SCIf/SCI12), one I²C bus interface (RIIC), and one RSPI channel. Pin allocation is flexible via the Multi-function Pin Controller (MPC): for example, P40/P41 serve SSDA1/SSCL1 in simple I²C mode, while P14/P17 route to RSPI signals like MOSIA/MISOA/SSLA0. All interfaces are fully functional in the R5F51104ADNE#20's 48-pin HWQFN package.
What is the RTC capability of the R5F51104ADNE#20, and can it wake the MCU from software standby mode?
The R5F51104ADNE#20 includes a full-featured RTC with calendar count mode (supporting leap year and 30-second adjustments), binary count mode, alarm/periodic/carry interrupts, and - critically - the ability to generate an interrupt that exits the MCU from software standby mode. This wake-up capability is explicitly confirmed in the R5F51104ADNE#20 datasheet and enables ultra-low-power periodic sensing without external components.
R5F51104ADNE#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:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
R5F51104ADNE#20 FAQ
1.How can I place an order for R5F51104ADNE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51104ADNE#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 R5F51104ADNE#20 reliable?
The price and inventory of R5F51104ADNE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51104ADNE#20 is usually 5 days.
3.What payment methods are accepted for R5F51104ADNE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51104ADNE#20 transactions.
Note: Certain payment methods may incur a processing fee.
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R5F51104ADNE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51104ADNE#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 R5F51104ADNE#20?
For technical support, including R5F51104ADNE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51104ADNE#20 requirements.
6.How does Aetrix verify that R5F51104ADNE#20 is sourced from the original manufacturer or authorized distributors?
All R5F51104ADNE#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 R5F51104ADNE#20 meets industry standards.
7.What is the process for return or replacement of R5F51104ADNE#20?
All R5F51104ADNE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F51104ADNE#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 R5F51104ADNE#20 part is unused and in its original packaging.
Return procedure for R5F51104ADNE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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