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Renesas R5F52105BDLJ#U0
- Part No.:
- R5F52105BDLJ#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R5F52105BDLJ#U0.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 100TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,708
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Product details
Overview
R5F52105BDLJ#U0 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 (16 channels), 10-bit D/A converter (2 channels), RTC, ELC, MPC, and IEC60730 compliance functions for industrial control applications.
For engineers reviewing the R5F52105BDLJ#U0 datasheet, R5F52105BDLJ#U0 pinout, R5F52105BDLJ#U0 application, or R5F52105BDLJ#U0 equivalent, key selection criteria include its 100-pin TFLGA package (7 × 7 mm, 0.65-mm pitch), −40°C to +85°C temperature grade, 5-V-tolerant I/O (4 pins), and support for deep software standby with RTC wake-up - critical for low-power embedded systems requiring functional safety certification.
Technical Context
The R5F52105BDLJ#U0 implements a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip debugging via FINE interface. Its RX CPU core supports 64-bit accumulator results from 32 × 32-bit operations and single-cycle 32-bit multiplication.
It integrates event-driven peripheral operation via ELC (59 event sources), multi-function pin control (MPC) for flexible peripheral routing, and independent clock domains (ICLK/PCLK/BCLK/FCLK) enabling precise power/performance trade-offs across CPU, peripherals, external bus, and FlashIF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 78 DMIPS @ 50 MHz |
| Max Operating Frequency | 50 MHz (VCC ≥ 2.7 V); supports 20 MHz @ 1.62–1.8 V for ultra-low-power operation |
| Memory | 128 KB flash (no wait states), 20 KB SRAM, 8 KB data flash (100k erase/write cycles) |
| Analog Peripherals | 12-bit S12AD (16-channel, 1 μs conversion), 10-bit DA (2-channel), 2× CMPA/B, TEMPS sensor |
| Timers & Control | 6× MTU2 channels, 2× TMR units (8-bit), 4× CMT channels, RTC with alarm/carry/time-capture |
| Communication | 6× SCI (asynchronous/sync/smart card), 1× RIIC (400 kbps), 1× RSPI (16 Mbps), ELC event linking |
| Power & Safety | 1.62–5.5 V supply, 4 low-power modes, IWDT with dedicated 125-kHz oscillator, IEC60730 self-test support |
Pinout & Package
Package: 100-pin TFLGA (PTLG0100JA-A), 7 × 7 mm, 0.65-mm pitch, 5-V tolerant on 4 I/O pins (P10–P13), exposed thermal pad (EP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core/IO rail decoupling; EP connects to GND for thermal management |
| RESET#, RES# | Reset input | Active-low asynchronous reset with internal pull-up; compatible with external RC or supervisor ICs |
| XTAL, EXTAL | Main clock oscillator | Supports 1–20 MHz crystal or external clock source; enables precise timing for real-time control |
| EXCLK | External clock input | Accepts up to 20 MHz external clock directly into PLL circuit for jitter-sensitive applications |
| MD0, MD1 | Mode select inputs | Configure single-chip, ROM-enabled/disabled expansion modes at power-on reset |
| P00–P97 | General-purpose I/O | 100-pin mapping includes 84 GPIOs; MPC allows dynamic peripheral function assignment per pin |
Key Features
| Feature | Design Value |
|---|---|
| ELC event linking | Direct hardware-triggered peripheral activation without CPU intervention - reduces latency and power in sensor/data acquisition |
| MPC pin remapping | Runtime-selectable peripheral function assignment across multiple pins - simplifies PCB layout and enables firmware-driven I/O optimization |
| IEC60730 compliance aids | Integrated self-diagnostic routines for A/D, clock accuracy (CAC), IWDT, RAM test assistance - accelerates Class B safety certification |
| Deep software standby with RTC | RTC remains active while CPU and most peripherals are powered down - enables sub-μA sleep current with precise wake-up scheduling |
| On-chip debug (FINE) | Fine-grained trace and breakpoint support via E1 emulator - enables real-time debugging of time-critical ISR and low-power sequences |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: Closed-loop BLDC motor drive with current sensing, PWM generation, and fault protection. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating complementary PWM via MTU2, sampling ADC at 1 μs, and managing overcurrent interrupts via ELC. Use Value: 50-MHz deterministic execution and hardware-accelerated math enable <10-μs current loop update - meeting IEC61800-5-2 response requirements. | Use Scenario: DIN-rail energy meter with tariff switching, tamper detection, and secure data logging. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing intervals, secure EEPROM writes, and RS485/IR communication. Use Value: Integrated 128 KB flash stores dual firmware images; data flash endurance (100k cycles) ensures 10+ years of daily tariff updates. |
| Home Appliance HMI | Building Automation Node |
Use Scenario: Washing machine main board with touch UI, water level sensing, and pump/motor control. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch scanning (via ADC), relay/valve actuation, buzzer tone generation (TMR), and BLE co-processor interface (SCI). Use Value: MPC allows reuse of same PCB layout across models; 5-V-tolerant I/O interfaces directly with legacy appliance sensors without level shifters. | Use Scenario: HVAC zone controller with temperature/humidity sensing, damper actuation, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Real-time coordinator acquiring analog sensor data, driving stepper motors via PWM, and maintaining deterministic serial protocol timing via SCI baud rate generator. Use Value: ELC-triggered ADC sampling synchronized to PWM dead-time ensures accurate current measurement during motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F52105ADLJ#U0 | Chip version A; lacks RTC, TPU, and 4 of 6 MTU2 channels; 128 KB flash/20 KB RAM identical | Not suitable for time-stamped logging or encoder-based position control due to missing RTC and TPU | Select only if RTC and advanced timer features are unnecessary and cost sensitivity outweighs future feature scalability |
| R5F52105BDFP#30 | LQFP-100 (14 × 14 mm, 0.5 mm pitch); identical chip version B specs but different package thermal/mechanical profile | Better heat dissipation and hand-solderability; requires PCB redesign due to larger footprint and pitch mismatch | Choose when production assembly uses reflow-only processes or when thermal margin >20°C above ambient is required |
Compared with R5F52105ADLJ#U0, the R5F52105BDLJ#U0 adds full RTC and enhanced timer resources essential for time-aware control; versus R5F52105BDFP#30, it offers superior board-level miniaturization at the cost of reduced thermal mass and soldering accessibility.
Availability
R5F52105BDLJ#U0 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, and building automation nodes requiring stable component supply, long-term lifecycle support, and IEC60730-compliant firmware development.
Supply support for R5F52105BDLJ#U0 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX210 Group targets cost-sensitive industrial and consumer applications requiring high computational throughput, integrated analog peripherals, and functional safety support - delivering optimized balance of performance, integration, and certification readiness.
FAQ
What is the maximum operating frequency and voltage range for the R5F52105BDLJ#U0?
The R5F52105BDLJ#U0 operates at up to 50 MHz when supplied with 2.7–5.5 V, 32 MHz at 1.8–2.7 V, and 20 MHz at 1.62–1.8 V. Its wide 1.62–5.5 V range enables direct battery operation (e.g., 2× Li-ion or 4× AA) without external regulators, reducing BOM count in portable industrial tools.
Does the R5F52105BDLJ#U0 support IEC60730 Class B compliance out of the box?
The R5F52105BDLJ#U0 includes hardware-assisted self-test features for A/D converter, clock accuracy (CAC), independent watchdog timer (IWDT), and RAM testing - forming the foundation for IEC60730 Class B certification. However, full compliance requires customer implementation of software diagnostic routines per Annex H; Renesas provides reference code libraries to accelerate validation.
How many analog input channels does the 12-bit A/D converter in the R5F52105BDLJ#U0 support?
The R5F52105BDLJ#U0 integrates the S12AD module with 16 analog input channels (AN000–AN015). It achieves 1 μs conversion time at 50 MHz ADCLK, supports three-channel synchronized sampling, and includes sample-and-hold circuits on three channels - enabling simultaneous current/voltage measurement in motor control applications.
What package type and pin count does the R5F52105BDLJ#U0 use?
The R5F52105BDLJ#U0 uses a 100-pin TFLGA package (PTLG0100JA-A) measuring 7 × 7 mm with 0.65-mm pitch and an exposed thermal pad. This compact form factor supports high-density PCB layouts in space-constrained industrial controllers while maintaining thermal performance via the EP-to-GND connection.
Can the R5F52105BDLJ#U0 operate in deep software standby mode with RTC functionality active?
Yes, the R5F52105BDLJ#U0 supports deep software standby mode where the CPU, most peripherals, and main clocks are halted while the sub-clock domain (32.768 kHz) remains active to drive the RTC. The RTC can generate interrupts or initiate wake-up - enabling precise, low-power scheduling for periodic sensor reads or communication bursts in battery-powered nodes.
R5F52105BDLJ#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- Series:
- RX200
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 84
- 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 16x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F52105BDLJ#U0 FAQ
1.How can I place an order for R5F52105BDLJ#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F52105BDLJ#U0 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 R5F52105BDLJ#U0 reliable?
The price and inventory of R5F52105BDLJ#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F52105BDLJ#U0 is usually 5 days.
3.What payment methods are accepted for R5F52105BDLJ#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F52105BDLJ#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F52105BDLJ#U0?
R5F52105BDLJ#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F52105BDLJ#U0 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 R5F52105BDLJ#U0?
For technical support, including R5F52105BDLJ#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F52105BDLJ#U0 requirements.
6.How does Aetrix verify that R5F52105BDLJ#U0 is sourced from the original manufacturer or authorized distributors?
All R5F52105BDLJ#U0 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 R5F52105BDLJ#U0 meets industry standards.
7.What is the process for return or replacement of R5F52105BDLJ#U0?
All R5F52105BDLJ#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F52105BDLJ#U0, 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 R5F52105BDLJ#U0 part is unused and in its original packaging.
Return procedure for R5F52105BDLJ#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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