Renesas R5F571MJGDBG#20

Overview

R5F571MJGDBG#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 connectivity, and multi-protocol edge processing.

For engineers reviewing the R5F571MJGDBG#20 datasheet, R5F571MJGDBG#20 pinout, R5F571MJGDBG#20 application, or R5F571MJGDBG#20 equivalent, key selection criteria include dual Ethernet timing precision (IEEE 1588 PTP), 240-MHz deterministic interrupt latency, 4-MB flash for OTA firmware updates, hardware AES/SHA crypto acceleration, and 177-pin TFLGA package compatibility with industrial PCB thermal and EMI constraints.

Technical Context

The R5F571MJGDBG#20 implements the RXv2 core with Harvard architecture, 5-stage pipeline, and single-cycle 32×32 multiplier - enabling 480 DMIPS at 240 MHz while supporting IEEE-754 single-precision FPU and DSP instructions. Its clock system integrates PLL, HOCO/LOCO oscillators, and independent domain clocks (ICLK up to 240 MHz, PCLKA up to 120 MHz, PCLKB up to 60 MHz) for precise peripheral timing isolation.

It features dual Ethernet controllers with dedicated EDMAC (3-channel DMA), EPTPC for IEEE 1588 timestamping, and RMII/MII interfaces - paired with USBAa (high-speed USB 2.0 + BC1.2 charging) and three CAN modules (32 mailboxes each). Memory subsystem includes 4 MB code flash (120 MHz zero-wait), 64 KB data flash (100k erase cycles), 512 KB SRAM (256 KB zero-wait at 240 MHz), and 32 KB ECCRAM with SEC-DED.

Key Specifications

Pinout & Package

Package: PTLG0177KA-A, 177-pin TFLGA, 8 mm × 8 mm, 0.5-mm pitch, –40°C to +105°C operating range (G-version).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance industrial MCU applications.

Compared with R5F571MJGDBG#20, the R5F571MLGDBG#20 offers identical peripheral set and timing capabilities at lower memory cost, while the R5F572MHGDBG#20 trades IEEE 1588 hardware for higher CPU speed and advanced security - making the R5F571MJGDBG#20 optimal for time-deterministic industrial networking where PTP precision is non-negotiable.

Availability

R5F571MJGDBG#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and factory automation edge nodes requiring stable component supply across extended product lifecycles.

Supply support for R5F571MJGDBG#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 management solutions for industrial, automotive, and infrastructure markets.

The RX71M Group targets high-reliability industrial applications demanding real-time performance, functional safety (IEC 60730), and multi-protocol connectivity - with R5F571MJGDBG#20 optimized for time-critical Ethernet-based control systems.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F571MJGDBG#20?

The R5F571MJGDBG#20 operates at a maximum frequency of 240 MHz using the 32-bit RXv2 CPU core with Harvard architecture and 5-stage pipeline. It delivers 480 DMIPS performance and includes single-precision IEEE-754 floating-point unit, 32×32 multiplier, and divider - all confirmed in the official R01DS0249EJ0120 datasheet Rev.1.20. This architecture enables deterministic real-time execution in industrial control applications.

Does the R5F571MJGDBG#20 support IEEE 1588 Precision Time Protocol hardware timestamping?

Yes, the R5F571MJGDBG#20 includes dedicated hardware for IEEE 1588 PTP timestamping via its EPTPCa (Precision Time Protocol Controller) block, tightly coupled to the dual Ethernet MAC (ETHERC). The hardware achieves sub-100 ns timestamp resolution per frame, enabling precise time synchronization in industrial automation networks - a feature explicitly documented in Section 1.1 and Table 1.1 of the R01DS0249EJ0120 datasheet.

What is the flash and RAM configuration of the R5F571MJGDBG#20?

The R5F571MJGDBG#20 integrates 4 MB of on-chip code flash memory (zero-wait access up to 120 MHz), 64 KB of reprogrammable data flash (rated for 100,000 erase cycles), 512 KB of SRAM (with 256 KB zero-wait at 240 MHz), 32 KB of ECCRAM with SEC-DED, and 8 KB of standby RAM - all verified in Tables 1.1 and 1.2 of the R01DS0249EJ0120 datasheet Rev.1.20. This memory hierarchy supports complex firmware, real-time buffering, and fault-tolerant operation.

Which communication interfaces are supported by the R5F571MJGDBG#20?

The R5F571MJGDBG#20 supports dual IEEE 802.3 10/100 Mbps Ethernet MAC with IEEE 1588, high-speed USB 2.0 (480 Mbps) with BC1.2 charging, three CAN v2.0B modules (32 mailboxes each), nine SCI channels, four SCIFA interfaces, two I²C buses (up to 1 Mbps), two RSPI, one QSPI, two SSI audio interfaces, SDHI, MMCIF, and PDC - all confirmed in the "Features" section and Table 1.1 of the R01DS0249EJ0120 datasheet.

What is the package type and operating temperature range for the R5F571MJGDBG#20?

The R5F571MJGDBG#20 uses the PTLG0177KA-A package: 177-pin TFLGA, 8 mm × 8 mm, 0.5-mm pitch, with an operating temperature range of –40°C to +105°C (G-version), as specified in the "Package Information" section of the R01DS0249EJ0120 datasheet Rev.1.20. This package supports high-density industrial PCB layouts and extended thermal operation in harsh environments.