Renesas R5F564MJHDBG#21

Overview

R5F564MJHDBG#21 from Renesas is a 120-MHz 32-bit RXv2 microcontroller with integrated FPU, 4 MB code flash, 512 KB SRAM, IEEE 1588-compliant dual Ethernet MAC, full-speed USB 2.0 with battery charging, CAN (3 channels), and 12-bit A/D (29 total channels). It targets industrial automation gateways requiring real-time networking, secure firmware updates, and sensor fusion.

For engineers reviewing the R5F564MJHDBG#21 datasheet, R5F564MJHDBG#21 pinout, R5F564MJHDBG#21 application, or R5F564MJHDBG#21 equivalent, this MCU delivers deterministic 240 DMIPS performance, hardware-accelerated AES/SHA encryption, dual-channel 12-bit D/A, and deep software standby with 8 KB backup RAM - critical for edge node power management and functional safety compliance.

Technical Context

The R5F564MJHDBG#21 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dual 120-MHz clock domains: ICLK for CPU execution and PCLKA (up to 120 MHz) for high-speed peripherals including ETHERC, USBA, and AES.

Its memory subsystem includes 4 MB on-chip code flash with zero-wait-state access at 120 MHz, 64 KB data flash rated for 100,000 erase/write cycles, and 512 KB SRAM with no wait states. The device supports IEEE 1588 PTP via EPTPC linked to ETHERC and provides hardware event linking (ELC) to synchronize timer triggers, A/D conversions, and PWM outputs without CPU intervention.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A (176-pin LFBGA, 24 × 24 mm, 0.5-mm pitch). Pin count and peripheral availability match 176-pin configuration per RX64M Group specification Table 1.2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F564MJHDBG#21, the R5F565NEHDFB#30 reduces package size and peripheral count for cost-sensitive UI applications, while the R7FA6M2AF3CFP#AA0 trades PTP hardware acceleration for enhanced motor control peripherals - making R5F564MJHDBG#21 uniquely suited for time-critical industrial gateways requiring both dual Ethernet and cryptographic acceleration.

Availability

R5F564MJHDBG#21 is available at Aetrix Electronics and suitable for industrial automation gateways, smart energy metering hubs, automotive diagnostic tools, and medical sensor fusion nodes requiring stable component supply and long-term lifecycle support.

Supply support for R5F564MJHDBG#21 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, and power solutions for industrial, automotive, and IoT markets.

The RX64M Group, including R5F564MJHDBG#21, was designed for high-performance industrial networking applications demanding real-time Ethernet, functional safety, and secure firmware execution in harsh environments.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F564MJHDBG#21?

The R5F564MJHDBG#21 operates at a maximum frequency of 120 MHz using the 32-bit RXv2 CPU core with CISC Harvard architecture and 5-stage pipeline. It delivers 240 DMIPS performance and includes single-precision IEEE-754 floating-point unit, two multiply-and-accumulate units, and 32-bit multiplier with one-cycle execution - enabling high-efficiency signal processing and real-time control tasks in the R5F564MJHDBG#21.

Does the R5F564MJHDBG#21 support IEEE 1588 Precision Time Protocol hardware acceleration?

Yes, the R5F564MJHDBG#21 integrates a dedicated PTP controller (EPTPC) linked to its dual Ethernet MACs, providing hardware timestamping compliant with IEEE 1588-2008. This enables sub-microsecond time synchronization for industrial TSN applications without CPU overhead - a core capability confirmed in the R5F564MJHDBG#21 datasheet Rev.1.20 Section 1.1 and Table 1.1.

How much on-chip memory does the R5F564MJHDBG#21 include, and what are its endurance characteristics?

The R5F564MJHDBG#21 includes 4 MB of on-chip code flash memory with zero-wait-state access at 120 MHz, 64 KB of reprogrammable data flash rated for 100,000 erase/write cycles, 512 KB of general-purpose SRAM, 32 KB of ECC-protected RAM, and 8 KB of battery-backed standby RAM. These memory resources are fully specified in the R5F564MJHDBG#21 datasheet Rev.1.20 pages 2–3 and support robust firmware update, safety-critical data retention, and low-power operation.

What communication interfaces are available on the R5F564MJHDBG#21 for industrial connectivity?

The R5F564MJHDBG#21 provides dual IEEE 1588-compliant Ethernet MACs, full-speed USB 2.0 host/function with battery charging (USBA), three CAN 2.0B channels (ISO 11898-1), nine SCI/SCIg/SCIh serial channels, four SCIFA UARTs with 16-byte FIFOs, two I²C interfaces (up to 1 Mbps), quad SPI, SD host interface, and parallel data capture for CMOS cameras - all documented in the R5F564MJHDBG#21 datasheet Rev.1.20 Sections 1.1 and 7–8.

Is the R5F564MJHDBG#21 qualified for functional safety standards such as IEC 60730?

Yes, the R5F564MJHDBG#21 includes multiple hardware features for IEC 60730 Class B compliance: oscillation-stoppage detection, independent watchdog timer (IWDTa) with window function, CRC calculation unit, self-diagnostic A/D converter, register write protection, and memory protection unit (MPU). These capabilities are explicitly listed under "Useful functions for IEC60730 compliance" in the R5F564MJHDBG#21 datasheet Rev.1.20 page 1.