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Renesas R5F52105BDFN#30
- Part No.:
- R5F52105BDFN#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
R5F52105BDFN#30.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,453
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Product details
Overview
R5F52105BDFN#30 from Renesas Electronics is a 32-bit RX CPU-based microcontroller operating at up to 50 MHz (78 DMIPS), featuring 128 KB on-chip flash, 20 KB SRAM, 8 KB data flash, 12-bit A/D converter (1 μs conversion), and real-time clock with deep software standby support. It serves as a main control unit in industrial HMI panels requiring deterministic timing, low-power operation, and IEC60730-compliant safety functions.
For engineers reviewing the R5F52105BDFN#30 datasheet, R5F52105BDFN#30 pinout, R5F52105BDFN#30 application, or R5F52105BDFN#30 equivalent, this MCU delivers verified 50-MHz performance, 128-KB flash with no wait states, integrated RTC and ELC event-triggered peripheral activation, and validated IEC60730 self-test capabilities for functional safety-critical firmware.
Technical Context
The R5F52105BDFN#30 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. Its memory subsystem includes zero-wait-state access to 128 KB flash (50 MHz) and 20 KB SRAM, both operating at full CPU speed.
Peripherals are orchestrated via the Event Link Controller (ELC), which enables direct hardware-to-hardware triggering without CPU intervention-supporting timer-triggered ADC conversions, RTC wake-up from deep software standby, and synchronized PWM generation across MTU2 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC core with 5-stage pipeline, 78 DMIPS @ 50 MHz |
| Max Operating Frequency | 50 MHz - enables real-time control loop execution within 20 ns per instruction cycle |
| Flash Memory | 128 KB - supports full-speed execution with zero wait states at 50 MHz |
| SRAM | 20 KB - provides sufficient buffer space for dual-banked communication stacks and real-time task contexts |
| A/D Converter | 12-bit, 16-channel, 1 μs conversion time - meets sub-millisecond sampling requirements for motor current sensing |
| Data Flash | 8 KB with 100,000 write/erase cycles - stores calibrated sensor offsets and field-updatable configuration parameters |
| Operating Voltage | 1.62 V to 5.5 V - allows direct interface with 3.3 V and 5 V logic domains without level-shifting |
| Temperature Range | −40°C to +85°C - qualified for industrial ambient environments including factory-floor HMIs and PLC I/O modules |
Pinout & Package
Package: PLQP0080KB-A - 80-pin LQFP, 12 × 12 mm, 0.5-mm pitch, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual power domains: VCC supplies core/peripherals; VSS provides low-noise reference for analog blocks |
| XTAL, EXTAL | Main crystal oscillator input/output | Supports external 1–20 MHz crystal for precise system clock generation; internal PLL multiplies to 50 MHz |
| RTC_XT1, RTC_XT2 | Sub-clock crystal terminals | Connects 32.768 kHz crystal for battery-backed RTC operation independent of main power domain |
| P00–P77 | General-purpose I/O ports | 80-pin package provides 64 GPIOs with 5-V tolerant inputs, open-drain outputs, and programmable pull-ups |
| AD00–AD15 | Analog input channels | 16 dedicated pins mapped to 12-bit S12AD module; AN000–AN013 available in 80-pin variant per Table 1.2 |
| DA0, DA1 | Digital-to-analog outputs | Two 10-bit DAC channels outputting 0–VREFH; used for analog setpoint generation or calibration voltage references |
| MTIOA0–MTIOB5 | MTU2 waveform I/O | Complementary PWM outputs with dead-time insertion; supports 3-phase motor control via phase-counting mode |
| ELC0–ELC58 | Event link controller inputs | 59 configurable event sources enable hardware-triggered DMA transfers and peripheral state transitions without CPU overhead |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware interconnect between 59 event sources and peripherals - eliminates interrupt latency for time-critical triggers like ADC start or PWM reload |
| IEC60730 Safety Support | Integrated self-diagnostic functions for A/D converter, clock accuracy measurement (CAC), IWDT, and RAM testing - reduces external safety monitoring circuitry |
| Multi-function Pin Controller (MPC) | Runtime reassignment of peripheral functions (SCI, I²C, RSPI) to multiple pin groups - simplifies PCB layout and enables feature-scaling across product variants |
| Deep Software Standby Mode | RTC remains active while CPU and most peripherals are powered down; wake-up via external pin or RTC alarm - extends battery life in portable HMIs |
| On-chip Data Flash | 8 KB EEPROM-equivalent storage with 100,000 endurance cycles - retains user calibration data and firmware update metadata across power cycles |
| Realtime Clock (RTC) | Binary second counter or calendar mode with leap-year correction; initiates wake-up from deep standby - enables scheduled maintenance alerts in industrial gateways |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
|
Use Scenario: Touch-enabled display interface with local data logging, button debouncing, and serial communication to PLC backplane. IC Role / Device Role / Timing Role: Main application processor executing GUI rendering, real-time button response (<5 ms), and UART/SCI protocol handling for Modbus RTU. Use Value: 50-MHz RX core ensures smooth animation rendering; ELC-triggered ADC reads touch panel coordinates without CPU polling; 128 KB flash hosts dual-application image for fail-safe firmware updates. |
Use Scenario: DIN-rail mounted meter measuring voltage, current, and power factor with tamper detection and IR/RS485 communication. IC Role / Device Role / Timing Role: System controller managing metrology ADC sampling, RTC-based billing intervals, and IEC60730-compliant self-tests during idle periods. Use Value: 12-bit A/D converter achieves <1% THD error at 50/60 Hz; RTC initiates daily energy accumulation; data flash stores tariff tables and calibration coefficients with guaranteed 100K-cycle retention. |
| Programmable Logic Controller (PLC) I/O Module | Factory Automation Gateway |
|
Use Scenario: 8-channel digital input module detecting 24 V DC sensor signals with debounce, isolation status reporting, and CAN bus upstream transmission. IC Role / Device Role / Timing Role: Real-time I/O manager performing edge detection, filtering, and timestamping using TPU input capture and ELC-synchronized interrupts. Use Value: TPU's 16-bit input capture records signal transitions with 20 ns resolution; 5-V tolerant GPIOs interface directly to industrial sensors; 80-pin package provides dedicated pins for CAN transceiver control and isolated power monitoring. |
Use Scenario: Protocol translator bridging legacy RS232 field devices to Ethernet-based SCADA systems with secure firmware updates over HTTPS. IC Role / Device Role / Timing Role: Secure communications hub running TLS stack, managing RSPI-to-Ethernet packet forwarding, and validating firmware signatures in data flash before boot. Use Value: Dual 10-bit DACs generate analog test signals for loop-checking; CRC calculator validates OTA update integrity; 20 KB SRAM accommodates TLS handshake buffers and packet reassembly queues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52105ADFN#V0 | Chip version A; lacks RTC, TPU, and 16-bit MTU2 timers; only 4 SCI channels vs. 6 in B version | Not suitable for time-stamped I/O or calendar-driven scheduling; limited peripheral count restricts multi-protocol gateway use | Select only when RTC and advanced timer features are unnecessary and cost optimization is primary |
| R5F52105BDFP#30 | Same chip version B and memory config, but 100-pin LQFP (PLQP0100KB-A); adds 12 more GPIOs and 2 extra SCI channels | Enables larger HMI with additional touch buttons or dual-interface designs (e.g., USB + RS485) | Choose when board layout allows 14×14 mm footprint and additional I/O or communication channels are required |
Compared with R5F52105ADFN#V0, the R5F52105BDFN#30 adds RTC, full MTU2 timer suite, and ELC-enabling deterministic event-driven architectures. Against R5F52105BDFP#30, it trades 20 GPIOs and 2 SCI channels for smaller 12×12 mm footprint and lower pin-count routing complexity.
Availability
R5F52105BDFN#30 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and IEC60730-compliant firmware development.
Supply support for R5F52105BDFN#30 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RX210 Group, including R5F52105BDFN#30, was designed for cost-sensitive industrial control applications demanding high reliability, functional safety compliance (IEC60730), and rich analog/motor control peripherals in compact packages.
FAQ
What is the maximum operating frequency and associated performance metric for the R5F52105BDFN#30?
The R5F52105BDFN#30 operates at a maximum frequency of 50 MHz, delivering 78 DMIPS (Dhrystone MIPS) performance. This is achieved through its 32-bit RXv1 CPU core with 5-stage pipeline and variable-length instruction set. The 50-MHz clock enables sub-20-ns instruction execution cycles, supporting real-time control loops in motor drives and industrial automation where deterministic timing is critical. The R5F52105BDFN#30 maintains this speed across its full 128 KB flash and 20 KB SRAM with zero wait states.
Does the R5F52105BDFN#30 include a real-time clock (RTC), and what are its key capabilities?
Yes, the R5F52105BDFN#30 integrates a dedicated real-time clock (RTC) module compatible with a 32.768 kHz sub-clock crystal. It supports both binary second counting and calendar modes with leap-year correction, alarm and periodic interrupts, and time-capture functionality. Critically, the RTC remains operational during deep software standby mode and can initiate wake-up events-enabling battery-backed timekeeping and scheduled operations in energy-constrained industrial HMIs. This capability is confirmed in Table 1.2 and Section 1.1 of the datasheet.
How many analog-to-digital converter (ADC) channels does the R5F52105BDFN#30 support, and what is its conversion speed?
The R5F52105BDFN#30 integrates a 12-bit successive-approximation ADC (S12AD) with 14 input channels (AN000–AN013) in the 80-pin LQFP package. Its minimum conversion time is 1.0 μs per channel when operating with ADCLK at 50 MHz. The module supports scan modes (single, continuous, group), sample-and-hold for three channels, and three-channel synchronized sampling-making it suitable for motor current sensing and multi-sensor data acquisition in industrial control applications.
What low-power modes are available on the R5F52105BDFN#30, and which peripherals remain active in deep software standby?
The R5F52105BDFN#30 offers four low-power consumption modes: sleep, all-module clock stop, software standby, and deep software standby. In deep software standby, the CPU, most peripherals, and flash memory are powered down, but the RTC, IWDT, and low-speed on-chip oscillator remain active. This allows time-based wake-up events and independent watchdog supervision while reducing current draw to microampere levels-ideal for battery-powered remote sensors and portable HMIs where extended runtime is essential.
Is the R5F52105BDFN#30 qualified for functional safety standards such as IEC60730, and what built-in features support compliance?
Yes, the R5F52105BDFN#30 includes dedicated hardware features for IEC60730 Class B compliance, including self-diagnostic functions for the A/D converter, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT), and RAM testing assistance. These features reduce reliance on software-only checks and enable systematic fault detection without external components. The datasheet explicitly lists "Useful functions for IEC60730 compliance" as a core feature group, confirming that R5F52105BDFN#30 is engineered for safety-critical appliance and industrial control applications.
R5F52105BDFN#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- RX200
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.62V ~ 5.5V
- Data Converters:
- A/D 14x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52105BDFN#30 FAQ
1.How can I place an order for R5F52105BDFN#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52105BDFN#30 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 R5F52105BDFN#30 reliable?
The price and inventory of R5F52105BDFN#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52105BDFN#30 is usually 5 days.
3.What payment methods are accepted for R5F52105BDFN#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52105BDFN#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52105BDFN#30?
R5F52105BDFN#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52105BDFN#30 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 R5F52105BDFN#30?
For technical support, including R5F52105BDFN#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52105BDFN#30 requirements.
6.How does Aetrix verify that R5F52105BDFN#30 is sourced from the original manufacturer or authorized distributors?
All R5F52105BDFN#30 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 R5F52105BDFN#30 meets industry standards.
7.What is the process for return or replacement of R5F52105BDFN#30?
All R5F52105BDFN#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52105BDFN#30, 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 R5F52105BDFN#30 part is unused and in its original packaging.
Return procedure for R5F52105BDFN#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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