Renesas R5F5651CDDFB#10

Overview

R5F5651CDDFB#10 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 120 MHz (240 DMIPS), featuring 1 MB on-chip code flash, 640 KB SRAM (256 KB main + 384 KB expansion), single-precision IEEE-754 FPU, Ethernet MAC, dual CAN channels, SD host/slave interfaces, and hardware AES encryption. It targets industrial HMI, networked gateway controllers, and secure IoT edge nodes requiring real-time control with rich connectivity.

For engineers reviewing the R5F5651CDDFB#10 datasheet, R5F5651CDDFB#10 pinout, R5F5651CDDFB#10 application, or R5F5651CDDFB#10 equivalent, key selection considerations include its 176-pin LFBGA package (PLQP0176KB-A), 120-MHz deterministic real-time performance, dual-bank flash for safe firmware updates, integrated Ethernet PHY support, and IEC60730-compliant safety features including CRC, IWDT, and register write protection.

Technical Context

The R5F5651CDDFB#10 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling ultra-compact code density. It integrates dedicated peripherals including ETHERC/EDMAC for 10/100 Mbps Ethernet, two independent CAN controllers compliant with ISO11898-1 (32 mailboxes each), and a full-featured SDHI supporting high-speed mode (25 MB/s) and SDIO v3.00.

Its clock system combines external crystal oscillators (8–24 MHz), internal HOCO (16/18/20 MHz), LOCO (240 kHz), and PLL for flexible domain partitioning: ICLK up to 120 MHz for CPU, PCLKA up to 120 MHz for ETHERC/DRW2D/GLCDC, and PCLKB up to 60 MHz for timers and ADCs. The MPU supports eight configurable protection regions (min. 16 bytes), and Trusted Memory (TM) restricts instruction fetch only from protected flash areas.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 24 mm × 24 mm, 0.5 mm pitch, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5651CDDFB#10, R5F565NEDDFB#10 offers double flash capacity in identical packaging for scalable firmware growth, while R7FA6M2AF3CFB#AA0 trades graphics and storage interfaces for deterministic EtherCAT timing-making it unsuitable as a drop-in replacement but viable for specialized motion control where SDHI and GLCDC are unused.

Availability

R5F5651CDDFB#10 is available at Aetrix Electronics and suitable for industrial HMI, smart gateway devices, and secure IoT endpoints requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5651CDDFB#10 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 global semiconductor manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The RX65N Group-including R5F5651CDDFB#10-is designed for industrial automation and networked edge devices requiring robust real-time performance, functional safety support (IEC60730), and integrated connectivity including Ethernet, CAN, and SD interfaces.

FAQ

What is the maximum operating frequency and core type of the R5F5651CDDFB#10?

The R5F5651CDDFB#10 operates at a maximum frequency of 120 MHz using the 32-bit RXv2 CPU core. This core delivers 240 DMIPS performance and includes a single-precision IEEE-754 floating-point unit, 32-bit multiplier (1-cycle), and divider (2-cycle). Its Harvard architecture with 5-stage pipeline ensures deterministic interrupt latency critical for industrial control loops.

Does the R5F5651CDDFB#10 support Ethernet connectivity, and what interface options are available?

Yes, the R5F5651CDDFB#10 integrates an Ethernet MAC (ETHERC) and supports both MII and RMII physical layer interfaces. It achieves 10/100 Mbps full- and half-duplex operation and includes EDMAC for descriptor-based DMA transfers. The part also supports Wake-on-LAN and IEEE 802.3x flow control. An external PHY is required unless using the optional integrated PHY variant (not applicable to R5F5651CDDFB#10).

What package type and pin count does the R5F5651CDDFB#10 use?

The R5F5651CDDFB#10 uses the PLQP0176KB-A package: a 176-pin Low-Profile Fine-Pitch Ball Grid Array measuring 24 mm × 24 mm with 0.5 mm pitch. This LFBGA package supports 136 general-purpose I/O pins, 19 of which are 5-V tolerant, and provides dedicated routing for Ethernet, CAN, SD, and graphics interfaces as defined in the official Renesas pinout diagram.

How much on-chip memory does the R5F5651CDDFB#10 include, and what are its key attributes?

The R5F5651CDDFB#10 includes 1 MB of on-chip code flash memory with dual-bank architecture for background programming and safe firmware updates, 640 KB of SRAM (256 KB main + 384 KB expansion), and 32 KB of reprogrammable data flash rated for 100,000 erase cycles. Flash access incurs zero wait states up to 50 MHz, one wait state up to 100 MHz, and two wait states above 100 MHz-optimized for the 120 MHz CPU clock.

What safety and security features are integrated into the R5F5651CDDFB#10?

The R5F5651CDDFB#10 integrates multiple IEC60730 Class B compliance features including oscillation-stop detection, CRC calculator (CRCA) for 8-/32-bit data, independent watchdog timer (IWDT) with configurable window function, and self-diagnostic A/D converter. Security features include AES-128/192/256 encryption engines, Trusted Secure IP (TSIP), memory protection unit (MPU), and register write protection to prevent unintended overwrites during fault conditions.