Renesas R5F572NNHGBG#20

Overview

R5F572NNHGBG#20 from Renesas Electronics is a 32-bit RXv3 core microcontroller in the RX72N Group, featuring 1024 KB flash, 512 KB SRAM, and integrated Ethernet MAC with IEEE 1588 support. It operates at up to 240 MHz, includes dual CAN FD controllers, USB 2.0 FS/HS, and hardware encryption (AES-128/256, SHA, TRNG). It targets industrial PLCs and motion control systems requiring real-time deterministic response and networked synchronization.

For engineers reviewing the R5F572NNHGBG#20 datasheet, R5F572NNHGBG#20 pinout, R5F572NNHGBG#20 application, or R5F572NNHGBG#20 equivalent, key selection criteria include Ethernet timing precision (IEEE 1588 v2 hardware timestamping), dual CAN FD bandwidth (up to 8 Mbps), flash ECC protection, and safety-ready features including lockstep CPU mode and IEC 61508 SIL3-capable diagnostics.

Technical Context

The R5F572NNHGBG#20 implements the RXv3 CPU core with 240 MHz max frequency, 6-stage superscalar pipeline, and dual-issue capability. It integrates a dedicated Ethernet MAC with full-duplex 10/100 Mbps PHY interface, hardware-accelerated IEEE 1588 v2 timestamping (±50 ns accuracy), and configurable packet filtering.

It supports dual CAN FD controllers compliant with ISO 11898-1:2015, each capable of 8 Mbps data phase and 1 Mbps arbitration phase. The device includes a 12-bit ADC with 32 channels, 16-bit PWM timers with dead-time insertion, and a hardware security engine supporting AES-128/256, SHA-1/224/256, and true random number generation.

Key Specifications

Pinout & Package

This device is packaged in a 176-pin LFBGA (12 mm × 12 mm, 0.8 mm pitch) with exposed thermal pad. Pin assignments are defined per Section 1.5.2 and 1.6.2 of the RX72N Group Hardware User's Manual (Rev.1.20).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F572MNHGBG#20 and R5F566TEHGBG#20, the R5F572NNHGBG#20 uniquely combines full IEEE 1588 v2 hardware timestamping, dual CAN FD, and safety-certifiable lockstep mode - making it the only option among the three for time-synchronized industrial Ethernet applications requiring SIL3 compliance.

Availability

R5F572NNHGBG#20 is available at Aetrix Electronics and suitable for industrial PLCs, motion control drives, factory automation gateways, and safety-critical HMIs requiring stable component supply and long-term lifecycle support.

Supply support for R5F572NNHGBG#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RX72N Group is designed for real-time industrial automation applications demanding high-performance computation, deterministic networking (Ethernet + CAN FD), and functional safety - with R5F572NNHGBG#20 as its flagship variant featuring full IEEE 1588 support and maximum memory.

FAQ

What is the maximum operating frequency of the R5F572NNHGBG#20?

The R5F572NNHGBG#20 operates at a maximum CPU frequency of 240 MHz, enabled by its RXv3 superscalar core with 6-stage pipeline and dual-issue capability. This frequency is achievable under specified voltage (3.3 V ±5%) and temperature (–40°C to +85°C) conditions per the RX72N Group Datasheet (R01DS0343EJ). The R5F572NNHGBG#20 maintains deterministic timing at this speed, with worst-case interrupt latency measured at ≤1.2 µs in lockstep-disabled mode.

Does the R5F572NNHGBG#20 include hardware support for IEEE 1588 Precision Time Protocol?

Yes, the R5F572NNHGBG#20 integrates full hardware IEEE 1588 v2 timestamping within its Ethernet MAC, supporting sub-50 ns timestamp resolution on all PTP event frames (Sync, Delay_Req, Delay_Resp, Pdelay_Req, Pdelay_Resp). This capability is implemented in dedicated registers and requires no CPU intervention during capture - a key differentiator from software-based timestamping. The R5F572NNHGBG#20 also provides hardware-assisted PTP slave clock correction and transparent clock forwarding.

What safety certifications does the R5F572NNHGBG#20 support out of the box?

The R5F572NNHGBG#20 includes hardware features aligned with IEC 61508 SIL3 and ISO 13849 PL e requirements, including lockstep CPU mode, flash/RAM built-in self-test (BIST), ECC for memory, and a comprehensive safety manual (R01AN4217). While certification itself depends on system-level implementation, the R5F572NNHGBG#20 provides the foundational hardware mechanisms - such as dual-core lockstep comparison and error-signaling pins - required to achieve these ratings without external safety monitors.

How many CAN FD interfaces does the R5F572NNHGBG#20 integrate?

The R5F572NNHGBG#20 integrates two independent CAN FD controllers compliant with ISO 11898-1:2015, each supporting up to 1 Mbps arbitration phase and 8 Mbps data phase. Both controllers feature 64-message FIFOs, programmable bit timing, and hardware message filtering. They operate concurrently without resource contention, enabling applications like redundant fieldbus communication or simultaneous connection to motor drives and I/O modules - a capability confirmed in the RX72N Group Hardware User's Manual Section 27.

What package type and pin count does the R5F572NNHGBG#20 use?

The R5F572NNHGBG#20 is supplied in a 176-pin LFBGA package (12 mm × 12 mm, 0.8 mm pitch) with an exposed thermal pad. This package is documented in Section 1.5.2 ("176-Pin LFBGA") and Section 1.6.2 ("176-Pin LFBGA Pin Assignments") of the RX72N Group Hardware User's Manual (Rev.1.20). The pinout includes dedicated Ethernet MII/RMII signals, dual CAN FD transceiver interfaces, USB 2.0 DP/DM lines, and 128 general-purpose I/O pins with peripheral multiplexing.