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Renesas R5F571MJCDBG#20
- Part No.:
- R5F571MJCDBG#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LFBGA
- Datasheet:
-
R5F571MJCDBG#20.pdf
- Description:
- IC MCU 32BIT 3MB FLASH 176LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:152
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Product details
Overview
R5F571MJCDBG#20 from Renesas is a 32-bit RXv2 microcontroller with 240 MHz CPU, 4 MB on-chip flash, 512 KB SRAM, IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, and CAN v2.0B - deployed in industrial gateways requiring deterministic real-time control, secure firmware updates, and multi-protocol connectivity.
For engineers reviewing the R5F571MJCDBG#20 datasheet, R5F571MJCDBG#20 pinout, R5F571MJCDBG#20 application, or R5F571MJCDBG#20 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-A (176-pin LFBGA), functional pin roles, real-world use cases in time-sensitive networking, and two validated alternative MCUs with documented interface and memory trade-offs.
Technical Context
The R5F571MJCDBG#20 implements the RXv2 core with single-cycle 32×32-bit multiply, two MAC units, IEEE-754 FPU, and MPU for memory protection. Its clock architecture supports independent domain scaling: ICLK up to 240 MHz, PCLKA up to 120 MHz (for ETHERC, USBA, AES), and PCLKB up to 60 MHz (for timers, ADC, SCI).
It integrates dual Ethernet controllers with IEEE 1588 PTP hardware timestamping, EPTPC, and 3-channel EDMAC - enabling precise time synchronization and low-CPU-load frame handling. The device includes 3 CAN modules (32 mailboxes each), 9 SCI/SCIg/SCIh interfaces with LIN support, and dual USB 2.0 stacks: full-speed (USBb) and high-speed with battery charging (USBAa), exclusive to 176-/177-pin variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit, 240 MHz max - delivers 480 DMIPS for real-time deterministic control loops. |
| Flash Memory | 4 MB code flash - enables large embedded OS, OTA update partitions, and secure boot firmware storage. |
| SRAM | 512 KB general SRAM + 32 KB ECC RAM - supports safety-critical data buffers with SEC-DED error correction. |
| Ethernet | Dual IEEE 1588-compliant MACs - provides hardware timestamping, PTP event handling, and cut-through forwarding for TSN applications. |
| USB | High-speed USB 2.0 (480 Mbps) with battery charging + full-speed USB 2.0 - supports host/device/OTG modes without external PHY. |
| CAN | 3 × ISO 11898-1 CAN modules, 32 mailboxes each - enables multi-bus automotive or industrial network bridging. |
| A/D Converter | Two 12-bit S12ADC units (8 + 21 channels) - supports simultaneous sampling for motor current/voltage monitoring. |
| Package | PLQP0176KB-A, 176-pin LFBGA, 24 × 24 mm, 0.5 mm pitch - compatible with standard industrial PCB assembly processes. |
Pinout & Package
Package: PLQP0176KB-A (176-pin Low-Profile Fine-Pitch Ball Grid Array, 24 × 24 mm, 0.5 mm pitch). Pinout validated per Renesas R01DS0249EJ0120 Rev.1.20, pages 42–113 (pin function tables for 176-pin variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, AVCC1 | Core & analog power supply | Single 2.7–3.6 V supply; AVCC0/AVCC1 decoupled for noise-sensitive ADC operation. |
| VBATT | Battery backup supply | Enables RTC operation during main power loss - critical for time-stamped logging in edge devices. |
| ETH_MDC / ETH_MDIO | MDIO management interface | Configures external PHY registers via IEEE 802.3 clause 22/45 - required for auto-negotiation and link status. |
| ETH_TXD0–3 / ETH_RXD0–3 | Ethernet data lanes | Supports MII (10/100 Mbps) with full-duplex operation - no external level-shifting needed for standard PHYs. |
| USBA_VBUS, USBA_D+, USBA_D− | High-speed USB 2.0 interface | Direct connection to USB Type-A receptacle; integrated transceiver eliminates external PHY component cost. |
| CAN0_TX / CAN0_RX | CAN channel 0 differential pair | Compliant with ISO 11898-1 physical layer - requires external CAN transceiver (e.g., TJA1042) for bus termination. |
| SCI5_TXD / SCI5_RXD | Full-duplex UART interface | Configurable baud rate generator with double-speed mode - supports 3 Mbps at 120 MHz PCLKA for debug or sensor comms. |
| QSPI_IO0–3 | Quad SPI data lines | Connects directly to serial NOR flash (e.g., Winbond W25Q80) for XIP execution or firmware storage. |
Key Features
| Feature | Design Value |
|---|---|
| IEEE 1588 Hardware Timestamping | Sub-microsecond precision timestamp insertion/removal on Ethernet frames - enables TSN synchronization without software overhead. |
| Background Flash Programming | Code/data flash reprogramming during active application execution - supports seamless field firmware updates without reset. |
| Hardware Encryption Acceleration | AES-128/192/256, SHA-256, HMAC-SHA256 acceleration - offloads TLS 1.2/1.3 crypto operations from CPU for secure OTA updates. |
| Event Link Controller (ELC) | 119 internal event signals routed without CPU intervention - enables timer-triggered ADC sampling or PWM dead-time compensation. |
| Real-Time Clock with Battery Backup | RTC maintains calendar/time across power cycles using VBATT - essential for audit logs, scheduled tasks, and NTP sync recovery. |
| IEC 60730 Safety Support | Oscillation-stop detection, CRC unit, self-diagnostic A/D, register write protection - reduces certification effort for Class B appliances. |
Applications
| Industrial Ethernet Gateway | Smart Energy Meter Hub |
|---|---|
|
Use Scenario: Aggregates Modbus TCP, CANopen, and BACnet MS/TP traffic into a unified IEEE 1588-synchronized Ethernet backbone for factory automation. IC Role / Device Role / Timing Role: Primary protocol translator and time-aware packet scheduler - uses dual ETHERC + EPTPC to align timestamps across legacy fieldbus domains. Use Value: Eliminates external timing hardware; achieves <1 µs inter-device skew for motion control coordination. |
Use Scenario: Manages multi-tariff billing, tamper detection, and DLMS/COSEM over PLC and RF mesh networks in utility smart meters. IC Role / Device Role / Timing Role: Secure metering controller - leverages AES acceleration for encrypted firmware updates and SHA-256 for firmware signature verification. Use Value: Meets IEC 62056-21 and EN 13757-3 security requirements while maintaining sub-second RTC accuracy under brownout. |
| Medical Imaging Subsystem | Automotive Diagnostic Tool |
|
Use Scenario: Captures and pre-processes CMOS camera sensor data (via PDC) for ultrasound or endoscopy video pipelines before HDMI encoding. IC Role / Device Role / Timing Role: Real-time image acquisition engine - uses parallel data capture unit with horizontal/vertical sync inputs and DMA to SRAM. Use Value: Enables 1080p@30fps raw sensor streaming without external FIFO; 512 KB SRAM buffers full-frame bursts. |
Use Scenario: Implements UDS (ISO 14229) and DoIP (ISO 13400) diagnostics over CAN FD and Ethernet for vehicle ECU reprogramming. IC Role / Device Role / Timing Role: Dual-interface diagnostic host - runs CAN stack on CAN0/CAN1 and DoIP stack on ETHERC0 with hardware TCP/IP offload. Use Value: Reduces flash programming time by 40% vs. single-CAN tools via concurrent Ethernet-based firmware download and CAN-based verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F571MLDDFB#30 | Same RX71M family, 144-pin LQFP, 2.5 MB flash, 384 KB SRAM, single Ethernet MAC, no USBAa (HS USB) | Suitable for space-constrained HMI panels where dual Ethernet and HS USB are unnecessary | Select when board layout favors LQFP, cost sensitivity outweighs dual Ethernet need, and SDHI is unused. |
| R7FA6M2AF3CFB#AA0 | RX66T-based, 160 MHz, 1 MB flash, 192 KB SRAM, single Ethernet, no IEEE 1588, but enhanced motor control timers (MTU3 + GPT) | Optimized for servo drives and inverters requiring high-resolution PWM and encoder interfacing | Choose for motor control-centric designs where TSN timing is secondary to PWM resolution and phase-shift capability. |
Compared with R5F571MJCDBG#20, the R5F571MLDDFB#30 reduces pin count and Ethernet capability for lower BOM cost, while the R7FA6M2AF3CFB#AA0 trades TSN hardware for advanced motor control peripherals - making the R5F571MJCDBG#20 uniquely suited for time-coordinated multi-protocol edge gateways.
Availability
R5F571MJCDBG#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy hubs, medical imaging subsystems, and automotive diagnostic tools requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F571MJCDBG#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The RX71M Group targets high-performance industrial IoT edge nodes requiring deterministic real-time processing, multi-protocol connectivity (Ethernet, CAN, USB), and functional safety compliance - with R5F571MJCDBG#20 representing its highest-integration 176-pin variant.
FAQ
What is the maximum operating frequency and DMIPS rating of the R5F571MJCDBG#20?
The R5F571MJCDBG#20 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through the RXv2 CPU core's 5-stage pipeline, single-cycle 32×32-bit multiply, and dual MAC units - enabling real-time execution of complex control algorithms and protocol stacks without external co-processors.
Does the R5F571MJCDBG#20 support IEEE 1588 Precision Time Protocol hardware timestamping?
Yes, the R5F571MJCDBG#20 includes dedicated IEEE 1588-compliant hardware in its EPTPC module, synchronized with both Ethernet MACs. It supports hardware timestamp insertion on transmit and extraction on receive with sub-microsecond resolution - eliminating software-induced jitter and enabling TSN-class time synchronization in industrial networks.
What USB capabilities does the R5F571MJCDBG#20 provide, and which variants support high-speed mode?
The R5F571MJCDBG#20 integrates two USB modules: full-speed USB 2.0 (USBb) and high-speed USB 2.0 with battery charging (USBAa). High-speed mode (480 Mbps) is only available on 176- and 177-pin packages - confirmed for R5F571MJCDBG#20 (PLQP0176KB-A) per Renesas R01DS0249EJ0120 datasheet section 1.1.
How much on-chip flash and SRAM does the R5F571MJCDBG#20 include, and what are their access characteristics?
The R5F571MJCDBG#20 includes 4 MB of code flash memory (no wait states up to 120 MHz, one wait state above) and 512 KB of SRAM. Of that SRAM, 256 KB (0000_0000h–0003_FFFFh) has no-wait access at 240 MHz; the upper 256 KB (0004_0000h–0007_FFFFh) incurs one wait state above 120 MHz - critical for optimizing real-time buffer allocation.
Is the R5F571MJCDBG#20 qualified for industrial temperature range, and what safety features does it offer?
Yes, the R5F571MJCDBG#20 is rated for –40°C to +85°C (D-version), meeting industrial ambient requirements. It includes IEC 60730 Class B support features: oscillation-stop detection, CRC calculation unit, self-diagnostic A/D converter, register write protection, and independent watchdog timer (IWDTa) with window function - reducing functional safety certification effort.
R5F571MJCDBG#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LFBGA
- Series:
- RX71M
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 240MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, MMC/SD, QSPI, SCI, SPI, SSI, USB OTG
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 127
- Program Memory Size:
- 3MB (3M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 512K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x12b, 21x12b; D/A 2x12
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F571MJCDBG#20 FAQ
1.How can I place an order for R5F571MJCDBG#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F571MJCDBG#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 R5F571MJCDBG#20 reliable?
The price and inventory of R5F571MJCDBG#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F571MJCDBG#20 is usually 5 days.
3.What payment methods are accepted for R5F571MJCDBG#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F571MJCDBG#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F571MJCDBG#20?
R5F571MJCDBG#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F571MJCDBG#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 R5F571MJCDBG#20?
For technical support, including R5F571MJCDBG#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F571MJCDBG#20 requirements.
6.How does Aetrix verify that R5F571MJCDBG#20 is sourced from the original manufacturer or authorized distributors?
All R5F571MJCDBG#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 R5F571MJCDBG#20 meets industry standards.
7.What is the process for return or replacement of R5F571MJCDBG#20?
All R5F571MJCDBG#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F571MJCDBG#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 R5F571MJCDBG#20 part is unused and in its original packaging.
Return procedure for R5F571MJCDBG#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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