Renesas R5F56318SDBG#U0

Overview

R5F56318SDBG#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 512 KB on-chip flash memory, and 64 KB SRAM. It supports USB 2.0 host/function/OTG, CAN (3 channels), 12-bit A/D (21 ch), 10-bit D/A (2 ch), RTC, and AES encryption-designed for industrial networking gateways requiring deterministic real-time control and secure connectivity.

For engineers reviewing the R5F56318SDBG#U0 datasheet, R5F56318SDBG#U0 pinout, R5F56318SDBG#U0 application, or R5F56318SDBG#U0 equivalent, this page delivers verified specifications, package mapping to PLBG0176GA-A (176-pin LFBGA), functional differentiation from RX631 Group (Ethernet, SDRAM, RTC, sub-clock oscillator), and validated alternative part selection guidance.

Technical Context

The R5F56318SDBG#U0 implements the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates a dedicated Ethernet DMA controller (EDMAC), dual USB 2.0 modules (host/function + function-only), and three independent CAN controllers compliant with ISO11898-1.

Its clock system includes PLL-based 100 MHz ICLK, programmable PCLK up to 50 MHz, and separate low-power oscillators (LOCO/HOCO) supporting four low-power modes. The MCU features MPU-enforced memory protection, JTAG/FINE debug interfaces, and hardware CRC calculation for IEC60730 compliance.

Key Specifications

Pinout & Package

Package: PLBG0176GA-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 13 mm × 13 mm body, 0.8 mm ball pitch, RoHS-compliant, lead-free solder compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56318SDBG#U0, R5F563NEDDBG offers greater memory headroom for scalable firmware, while R5F563NECDFC trades Ethernet capability for LQFP packaging flexibility-neither is pin-compatible, requiring board redesign for migration.

Availability

R5F56318SDBG#U0 is available at Aetrix Electronics and suitable for industrial networking gateways, secure PLC communication modules, smart energy meter hubs, and building automation controllers requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F56318SDBG#U0 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 RX63N Group, including R5F56318SDBG#U0, was engineered for deterministic real-time control in networked industrial equipment-integrating Ethernet, USB, CAN, and security accelerators into a single high-integrity MCU platform.

FAQ

What is the maximum operating frequency and core architecture of the R5F56318SDBG#U0?

The R5F56318SDBG#U0 operates at a maximum frequency of 100 MHz and uses the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables efficient real-time processing in applications such as industrial gateways and motor control systems where deterministic timing and computational throughput are critical. The R5F56318SDBG#U0 leverages these capabilities to execute complex protocol stacks and control algorithms without external co-processors.

Does the R5F56318SDBG#U0 include an Ethernet controller, and what interface standards does it support?

Yes, the R5F56318SDBG#U0 includes a fully integrated Ethernet MAC compliant with IEEE 802.3, supporting 10/100 Mbps operation in full- and half-duplex modes. It implements both MII and RMII physical layer interfaces per IEEE 802.3u and supports flow control (IEEE 802.3x) and Magic Packet™ wake-on-LAN. Unlike RX631 Group MCUs, the R5F56318SDBG#U0's Ethernet capability is native and does not require external PHY components. This makes the R5F56318SDBG#U0 ideal for space-constrained industrial networking applications where integration reduces BOM count and improves signal integrity.

What memory resources are available on the R5F56318SDBG#U0, and how are they configured?

The R5F56318SDBG#U0 integrates 512 KB of on-chip flash memory (executed at 100 MHz with zero wait states), 64 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via SWD/JTAG and background operation for data flash writes. The memory map includes dedicated regions for code, data, and EEPROM-like storage, with MPU enforcement for secure partitioning. These resources allow the R5F56318SDBG#U0 to host robust firmware images, runtime variables, and persistent configuration data-all within a single die-reducing reliance on external memory in compact industrial designs.

Which communication interfaces are supported by the R5F56318SDBG#U0, and how many instances of each are implemented?

The R5F56318SDBG#U0 supports Ethernet MAC (1), USB 2.0 host/function module (1 port) plus USB 2.0 function-only module (1 port), CAN (3 channels, ISO11898-1 compliant), I²C (4 channels, one FM+), SCI (13 channels total), RSPI (3 channels), and IEBus (1 channel). It also includes a Parallel Data Capture Unit (PDC) for image sensor interfacing. This comprehensive interface set allows the R5F56318SDBG#U0 to serve as a central hub connecting diverse fieldbus, wireless, and sensor subsystems-enabling unified communication in complex automation architectures without external bridge ICs.

What security and functional safety features does the R5F56318SDBG#U0 provide for industrial applications?

The R5F56318SDBG#U0 includes AES-128/192/256 encryption/decryption hardware, CRC calculator with three selectable polynomials, memory protection unit (MPU), oscillation-stop detection, independent watchdog timer (IWDT) with dedicated LOCO clock, and A/D converter self-diagnostic functions-all aligned with IEC60730 Class B requirements. These features enable secure boot, encrypted firmware updates, runtime integrity checks, and fail-safe behavior in safety-critical environments. For developers implementing certified industrial control systems, the R5F56318SDBG#U0 provides foundational hardware-level safety mechanisms that reduce software certification effort and improve system resilience.