Renesas R5F5651EDGLK#20

Overview

R5F5651EDGLK#20 from Renesas is a 120-MHz 32-bit RXv2 core MCU with single-precision IEEE-754 FPU, 240 DMIPS performance, 2 MB on-chip code flash (dual-bank), 640 KB SRAM, and integrated Ethernet MAC, CAN, SD host/slave, QSPI, and GLCDC for industrial HMI and connected gateway applications.

For engineers reviewing the R5F5651EDGLK#20 datasheet, R5F5651EDGLK#20 pinout, R5F5651EDGLK#20 application, or R5F5651EDGLK#20 equivalent, this device supports IEC60730-compliant safety functions, real-time clock with battery backup, 12-bit dual A/D converters (29 total channels), hardware AES encryption, and 136 GPIOs with 5-V tolerance - critical for deterministic control, secure edge node design, and display-integrated systems.

Technical Context

The R5F5651EDGLK#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a memory protection unit (MPU) supporting eight configurable regions and Trusted Memory (TM) to protect code flash against unauthorized read access.

Its clock system combines external crystal oscillators (8–24 MHz), internal PLL, and multiple on-chip oscillators (LOCO/HOCO/IWDT-dedicated), enabling independent domain clocking: ICLK up to 120 MHz for CPU, PCLKA up to 120 MHz for high-speed peripherals (ETHERC, GLCDC, DRW2D), and PCLKB up to 60 MHz for timers and ADCs - ensuring precise timing isolation across subsystems.

Key Specifications

Pinout & Package

LFBGA-176 package (PLQP0176KB-A, 24 × 24 mm, 0.5-mm pitch) with 136 general-purpose I/O pins, including 19 5-V-tolerant inputs, 136 pull-up resistors, and 136 open-drain outputs - optimized for mixed-voltage interface flexibility and noise immunity in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F565NEDGLK#20, the R5F5651EDGLK#20 trades integrated PHY for greater signal integrity control and PHY selection freedom; compared with R5F566TEHDFP#30, it prioritizes connectivity and HMI over raw motor-control timing precision - making it optimal for gateway-class edge nodes requiring balanced compute, security, and interface breadth.

Availability

R5F5651EDGLK#20 is available at Aetrix Electronics and suitable for industrial gateways, smart HMI terminals, secure edge nodes, and energy monitoring systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5651EDGLK#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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX65N Group - including the R5F5651EDGLK#20 - was designed for industrial edge intelligence applications demanding integrated connectivity (Ethernet/CAN/SD), real-time graphics, functional safety, and hardware security in a single chip.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F5651EDGLK#20?

The R5F5651EDGLK#20 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 real-time computation for industrial control algorithms.

Does the R5F5651EDGLK#20 support secure boot and cryptographic acceleration?

Yes, the R5F5651EDGLK#20 includes hardware AES-128/192/256 encryption, Trusted Secure IP (TSIP) for key management, CRC calculator for 8-/32-bit data, memory protection unit (MPU), register write protection, and IEC60730-compliant self-diagnostic functions. These features collectively support secure boot, firmware authentication, and runtime integrity checking required for certified industrial and utility applications.

What display interfaces and graphics capabilities does the R5F5651EDGLK#20 provide?

The R5F5651EDGLK#20 integrates a Graphic-LCD Controller (GLCDC) supporting 3-plane overlay (background + 2 graphics layers) and multiple pixel formats (32/16/8/4/1 bpp), plus a dedicated 2D Drawing Engine (DRW2D) for hardware-accelerated vector drawing, bit blitting with rotation/stretching, and CLUT-based color conversion. Together, they enable rich, responsive GUIs on TFT displays without external graphics processors.

How many analog-to-digital converter channels does the R5F5651EDGLK#20 have, and what is their resolution and speed?

The R5F5651EDGLK#20 features two independent 12-bit A/D converters: S12AD0 with 8 channels and S12AD1 with 21 channels - totaling 29 analog inputs. Conversion resolution is selectable between 8-, 10-, and 12-bit modes, with minimum conversion time of 0.48 µs per channel at 12-bit resolution. Both units support self-diagnosis, analog input disconnection detection, and event-triggered sampling via ELC.

What communication interfaces are integrated into the R5F5651EDGLK#20 for industrial connectivity?

The R5F5651EDGLK#20 integrates Ethernet MAC (10/100 Mbps MII/RMII), dual CAN 2.0B controllers (32 mailboxes per channel), SD host/slave interfaces (SDHI/SDSI), quad SPI (QSPI), three RSPI ports, 13 serial communication interfaces (SCIg/h/i), three I2C buses (RIIC), and USB 2.0 FS host/function - providing comprehensive wired connectivity for industrial gateways, protocol bridges, and edge controllers operating in harsh electromagnetic environments.