Renesas R5F564MJGDBG#21

Overview

R5F564MJGDBG#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 controllers requiring real-time deterministic I/O, secure firmware updates, and networked time synchronization.

For engineers reviewing the R5F564MJGDBG#21 datasheet, R5F564MJGDBG#21 pinout, R5F564MJGDBG#21 application, or R5F564MJGDBG#21 equivalent, key selection criteria include its 177-pin TFLGA package (8 × 8 mm, 0.5-mm pitch), G-version temperature range (–40°C to +105°C), dual Ethernet + PTP support, and on-chip AES/SHA encryption for IEC 60730 Class B compliance.

Technical Context

The R5F564MJGDBG#21 implements the RXv2 CPU core with 240 DMIPS performance at 120 MHz, single-precision IEEE-754 FPU, and dual multiply-accumulate units. Its memory subsystem includes 4 MB zero-wait-state flash, 512 KB SRAM (no wait states), 32 KB ECC-protected RAM, and 64 KB data flash rated for 100,000 erase/write cycles.

Peripherals are clocked across four domains: ICLK (up to 120 MHz for CPU), PCLKA (up to 120 MHz for ETHERC/EPTPC/USBA), PCLKB (up to 60 MHz for timers/SCI/USBb), and PCLKC/PCLKD (60 MHz for dual 12-bit ADC units). The device supports IEEE 1588 timestamping via EPTPC linked to ETHERC, and features event-linking (ELC) for hardware-triggered peripheral coordination without CPU intervention.

Key Specifications

Pinout & Package

Package: PTLG0177KA-A - 177-pin Thin Fine-Pitch Land Grid Array (TFLGA), 8 mm × 8 mm body, 0.5 mm pitch, 0.7 mm height, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F564MJGDBG#21, the R5F566TEADFP#30 reduces cost and thermal footprint but sacrifices time-critical networking capabilities, while the R7FA6M2AF3CFP#AA0 advances CAN and analog performance at the expense of IEEE 1588 and dual-Ethernet determinism required in synchronized industrial systems.

Availability

R5F564MJGDBG#21 is available at Aetrix Electronics and suitable for industrial automation controllers, smart energy gateways, factory protocol converters, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F564MJGDBG#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The RX64M Group is designed for high-performance industrial automation and networked equipment requiring deterministic real-time processing, robust functional safety features, and integrated time-sensitive networking capabilities.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F564MJGDBG#21?

The R5F564MJGDBG#21 operates at a maximum frequency of 120 MHz using the RXv2 32-bit CISC Harvard architecture with 5-stage pipeline. It delivers 240 DMIPS performance and includes single-precision IEEE-754 floating-point unit, two MAC units, and 32-bit multiplier with one-cycle execution. This architecture enables deterministic real-time response for industrial control loops and motion profiling tasks executed by the R5F564MJGDBG#21.

Does the R5F564MJGDBG#21 support IEEE 1588 Precision Time Protocol, and how is it implemented?

Yes, the R5F564MJGDBG#21 supports IEEE 1588 through its integrated EPTPC (PTP Controller for Ethernet) block, which is directly connected to both ETHERC0 and ETHERC1 modules. Timestamping occurs in hardware with sub-microsecond resolution, and the EPTPC handles PTP message parsing, correction field calculation, and clock synchronization logic. This implementation allows the R5F564MJGDBG#21 to serve as a transparent or boundary clock in time-sensitive industrial networks without CPU overhead.

What are the memory resources available on the R5F564MJGDBG#21?

The R5F564MJGDBG#21 integrates 4 MB of zero-wait-state code flash memory, 512 KB of high-speed SRAM (no wait states), 32 KB of ECC-protected RAM (SEC-DED), 64 KB of reprogrammable data flash (rated for 100,000 erase/write cycles), and 8 KB of standby RAM backed by VBATT. These memory resources enable large firmware images, real-time data buffering, fault-tolerant variable storage, and non-volatile parameter retention - all essential for robust operation of the R5F564MJGDBG#21 in mission-critical applications.

How many Ethernet interfaces does the R5F564MJGDBG#21 support, and what standards do they comply with?

The R5F564MJGDBG#21 supports two independent Ethernet MAC interfaces (ETHERC0 and ETHERC1), each compliant with IEEE 802.3 for 10/100 Mbps operation in full- and half-duplex modes. Both interfaces support MII and RMII physical layer interfaces, Magic Packet™ wake-on-LAN, IEEE 802.3x flow control, and multicast filtering. The R5F564MJGDBG#21 also includes cut-through transfer capability between channels, enabling low-latency bridging functionality unique to this part.

What safety and security features does the R5F564MJGDBG#21 provide for industrial certification?

The R5F564MJGDBG#21 includes dedicated hardware for IEC 60730 Class B compliance: oscillation-stop detection, hardware CRC calculator, independent watchdog timer (IWDTa) with configurable window function, A/D converter self-diagnostic voltages, and register write protection. For security, it integrates AES-128/192/256, DES/TDES, and SHA-1/224/256 accelerators. These features collectively reduce certification effort for the R5F564MJGDBG#21 in safety-critical industrial and medical applications.