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Renesas R5F571MLDDLK#20
- Part No.:
- R5F571MLDDLK#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 145-TFLGA
- Datasheet:
-
R5F571MLDDLK#20.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 145TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:416
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Product details
Overview
R5F571MLDDLK#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 240 MHz (480 DMIPS), featuring 4 MB on-chip code flash, 512 KB SRAM, IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, and dual 12-bit A/D converters - deployed in industrial gateways requiring real-time protocol handling, secure firmware updates, and deterministic network timing.
For engineers reviewing the R5F571MLDDLK#20 datasheet, R5F571MLDDLK#20 pinout, R5F571MLDDLK#20 application, or R5F571MLDDLK#20 equivalent, key selection criteria include IEEE 1588 PTP timestamping accuracy, dual Ethernet channel isolation, 240-MHz deterministic interrupt latency, and hardware AES/SHA acceleration for IEC 60730 Class B compliance.
Technical Context
The R5F571MLDDLK#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions - enabling ultra-compact code density while sustaining 240 MHz operation. It integrates dual independent Ethernet controllers (ETHERC) each with dedicated EDMAC channels and EPTPC blocks compliant with IEEE 1588-2008 for hardware timestamping of PTP frames.
Its clock system supports simultaneous domain-specific frequencies: ICLK up to 240 MHz for CPU execution, PCLKA up to 120 MHz for Ethernet/USB/AES peripherals, and PCLKB up to 60 MHz for timers, ADCs, and serial interfaces - all derived from PLL-synthesized or HOCO/LOCO sources with oscillation-stop detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC core with 5-stage pipeline, 480 DMIPS @ 240 MHz - enables real-time deterministic task scheduling in multi-protocol industrial edge nodes. |
| Flash Memory | 4 MB code flash with background programming/erasing (BGO) and zero-wait access ≤120 MHz - supports field-upgradable firmware without runtime interruption. |
| SRAM | 512 KB general SRAM (256 KB no-wait @ 240 MHz), 32 KB ECC RAM (SEC-DED), 8 KB standby RAM - ensures data integrity and RTC persistence during deep software standby. |
| Ethernet | Dual IEEE 1588-compliant MACs with MII/RMII support, 3-channel EDMAC per controller - delivers synchronized time-aware packet processing for TSN-capable gateways. |
| USB | High-speed USB 2.0 host/function with battery charging (USBAa), plus full-speed USB 2.0 (USBb) - enables dual-role connectivity for firmware loading and peripheral attachment without external PHY. |
| A/D Converter | Dual 12-bit S12ADC units: Unit 0 (8 ch), Unit 1 (21 ch); 0.48 µs conversion time - provides high-resolution analog monitoring across distributed sensor inputs in PLC I/O modules. |
| Crypto Engine | Hardware AES (128/192/256), DES/TDES, SHA-1/224/256, HMAC - accelerates secure boot, OTA update verification, and TLS handshake offload in connected devices. |
Pinout & Package
Package: PLQP0176KB-A (176-pin LQFP, 24 × 24 mm, 0.5-mm pitch). Pin count and I/O configuration match RX71M Group specification for 176-pin variants: 127 general-purpose I/O pins with 5-V tolerance on 19 pins, programmable pull-up, open-drain capability, and event-linking support.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Core & analog power supply | Single 2.7–3.6 V supply with independent analog domains - simplifies power design while maintaining ADC accuracy and low-noise operation. |
| RES# | Active-low reset input | Asynchronous hardware reset with internal pull-up - enables robust system recovery from brown-out or watchdog timeout events. |
| CLKIN / CLKOUT | External crystal oscillator interface | Supports 8–24 MHz crystal for main clock - provides stable, low-jitter reference for IEEE 1588 timestamping and USB SOF generation. |
| ETXD0–7 / ETXCK / ETXEN / ERXD0–7 / ERXDV / ERXER | MII Ethernet physical layer signals | Full MII interface for each of two Ethernet MACs - allows direct connection to external PHYs without glue logic in dual-network applications. |
| USBDP / USBDM | High-speed USB 2.0 differential pair | Integrated USBAa transceiver supports 480 Mbps signaling - eliminates need for external USB PHY in compact gateway designs. |
| AD00–AD28 | Analog input channels | 29 total A/D inputs (8 + 21) mapped across two S12ADC units - enables simultaneous sampling of temperature, voltage, current, and sensor bus signals. |
Key Features
| Feature | Design Value |
|---|---|
| IEEE 1588 Hardware Timestamping | EPTPC block synchronizes with ETHERC to insert 64-bit timestamps into PTP frames at wire speed - critical for sub-microsecond time synchronization in TSN networks. |
| Event Link Controller (ELC) | 119 internal event signals routed without CPU intervention - enables deterministic trigger chaining (e.g., timer overflow → ADC start → DMA transfer → interrupt). |
| Secure Boot & Cryptography | Trusted Memory (TM) protects flash blocks 8–9; AES/SHA engines operate independently of CPU - enforces firmware authenticity and cryptographic agility for IEC 60730 Class B certification. |
| Dual Ethernet Isolation | Separate EDMAC channels and memory buffers per ETHERC - prevents cross-traffic interference and supports redundant network topologies in safety-critical infrastructure. |
| Low-Power Operation Modes | Four modes including deep software standby with 8 KB RAM retention and RTC backup via VBATT - extends uptime in battery-backed remote I/O concentrators. |
Applications
| Industrial Ethernet Gateway | Smart Energy Meter Hub |
|---|---|
|
Use Scenario: Aggregating Modbus TCP, CANopen, and PROFINET traffic across dual isolated Ethernet segments while performing protocol translation and local edge analytics. IC Role / Device Role / Timing Role: Primary application processor executing RTOS, managing dual Ethernet MACs with IEEE 1588 PTP timestamping, and coordinating secure firmware updates via high-speed USB. Use Value: Deterministic 240-MHz execution and hardware-accelerated crypto enable real-time protocol bridging and encrypted OTA updates without external co-processors. |
Use Scenario: Hosting DLMS/COSEM stack for AMI metering, collecting data from RS485-connected meters, and transmitting via cellular backhaul with time-stamped billing records. IC Role / Device Role / Timing Role: Secure host MCU with dual SCI interfaces, hardware RTC with leap-year compensation, and AES-128 encryption for secure data sealing and signature generation. Use Value: Integrated 12-bit dual A/D converters monitor internal power rails and temperature, while ECC RAM ensures data integrity during power-loss events in revenue-grade metering. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Controller |
|
Use Scenario: Serving as the central I/O processor in a modular PLC rack, scanning 32+ digital inputs, 16 analog inputs, and driving PWM-controlled actuators with precise timing. IC Role / Device Role / Timing Role: Real-time control engine running IEC 61131-3 logic with MTU3/GPT timers generating synchronized PWM waveforms and triggering A/D conversions. Use Value: 29 extended-function timers (including complementary PWM with dead-time insertion) and 127 GPIOs enable direct drive of industrial I/O without external CPLD or FPGA. |
Use Scenario: Managing HVAC subsystems via BACnet/IP over Ethernet, interfacing with Zigbee/Z-Wave radios via UART, and logging environmental data using integrated SDHI and temperature sensor. IC Role / Device Role / Timing Role: Connectivity hub with dual Ethernet, USB, QSPI for firmware storage, SDHI for local logging, and hardware RTC for time-stamped event recording. Use Value: On-chip 4 MB flash stores full BACnet stack and web UI assets; SDHI supports FAT32-formatted cards for field-serviceable log export without host PC dependency. |
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 |
|---|---|---|---|
| R5F571MLDDFK#20 | Same RX71M core, identical 176-pin LQFP package, but with 2 MB flash (vs. 4 MB) and no USBAa high-speed USB module. | Suitable for cost-sensitive gateways where dual Ethernet is required but high-speed USB host functionality is unnecessary. | Select when firmware size <2 MB and battery-charging USB is not needed - reduces BOM cost without sacrificing Ethernet or crypto capability. |
| R5F571MLHDLK#20 | Same 4 MB flash and USBAa, but in 177-pin TFLGA (8 × 8 mm) package - smaller footprint, different pinout, and no PDC (Parallel Data Capture) support. | Better suited for space-constrained edge nodes needing same compute/crypto/Ethernet features but no CMOS camera interface. | Choose for miniaturized designs where PCB area is critical and camera input is unused - retains full IEEE 1588 and USB HS functionality. |
Compared with R5F571MLDDLK#20, the R5F571MLDDFK#20 trades flash capacity and USB HS for lower cost, while the R5F571MLHDLK#20 preserves all key features in a smaller package at the expense of pin compatibility and PDC - making the R5F571MLDDLK#20 optimal for full-featured, pin-compatible industrial gateway upgrades.
Availability
R5F571MLDDLK#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy hubs, PLC I/O modules, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F571MLDDLK#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets - with over 40 years of embedded systems leadership.
The RX71M Group, including the R5F571MLDDLK#20, was designed specifically for industrial connectivity applications demanding real-time Ethernet, functional safety compliance (IEC 60730), and hardware security - targeting gateway, controller, and edge node use cases.
FAQ
What is the maximum operating frequency and DMIPS rating of the R5F571MLDDLK#20?
The R5F571MLDDLK#20 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through its RXv2 CPU core with 5-stage pipeline and optimized instruction set - enabling real-time deterministic execution in industrial control loops and protocol stacks without external acceleration.
Does the R5F571MLDDLK#20 support IEEE 1588 Precision Time Protocol (PTP)?
Yes, the R5F571MLDDLK#20 includes two dedicated EPTPC (Ethernet PTP Controller) blocks, each tightly coupled to an ETHERC MAC - providing hardware timestamping of PTP frames at line rate with sub-microsecond accuracy, essential for time-sensitive networking in industrial automation.
What are the flash and RAM capacities of the R5F571MLDDLK#20?
The R5F571MLDDLK#20 integrates 4 MB of on-chip code flash memory with background programming/erasing (BGO), 512 KB of general SRAM (256 KB no-wait at 240 MHz), 32 KB of ECC-protected RAM, and 8 KB of standby RAM - supporting complex real-time OS, secure boot, and data logging with integrity protection.
Which USB standards does the R5F571MLDDLK#20 support?
The R5F571MLDDLK#20 supports both high-speed USB 2.0 (480 Mbps) via the USBAa module and full-speed USB 2.0 (12 Mbps) via the USBb module - with integrated transceivers, on-chip 8.5 KB and 2 KB buffers, and battery charging capability - eliminating need for external PHYs in field-programmable gateways.
Is the R5F571MLDDLK#20 qualified for industrial temperature range?
Yes, the R5F571MLDDLK#20 is rated for the industrial temperature range of –40°C to +85°C (D-version), meeting requirements for deployment in harsh environments such as factory floors, outdoor substations, and HVAC equipment enclosures without thermal derating.
R5F571MLDDLK#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 145-TFLGA
- 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:
- 111
- Program Memory Size:
- 4MB (4M 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:
R5F571MLDDLK#20 FAQ
1.How can I place an order for R5F571MLDDLK#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F571MLDDLK#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 R5F571MLDDLK#20 reliable?
The price and inventory of R5F571MLDDLK#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F571MLDDLK#20 is usually 5 days.
3.What payment methods are accepted for R5F571MLDDLK#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F571MLDDLK#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F571MLDDLK#20?
R5F571MLDDLK#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F571MLDDLK#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 R5F571MLDDLK#20?
For technical support, including R5F571MLDDLK#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F571MLDDLK#20 requirements.
6.How does Aetrix verify that R5F571MLDDLK#20 is sourced from the original manufacturer or authorized distributors?
All R5F571MLDDLK#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 R5F571MLDDLK#20 meets industry standards.
7.What is the process for return or replacement of R5F571MLDDLK#20?
All R5F571MLDDLK#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F571MLDDLK#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 R5F571MLDDLK#20 part is unused and in its original packaging.
Return procedure for R5F571MLDDLK#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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