Renesas R5F56317DDBG#U0

Overview

R5F56317DDBG#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 768 KB on-chip flash memory, and 128 KB SRAM. It operates from a 2.7–3.6 V supply, supports -40 to +85°C industrial temperature range, and targets networked industrial control, building automation gateways, and embedded HMI systems requiring deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56317DDBG#U0 datasheet, R5F56317DDBG#U0 pinout, R5F56317DDBG#U0 application, or R5F56317DDBG#U0 equivalent, key selection criteria include Ethernet MAC support (vs. RX631), 176-pin LFBGA (PLBG0176GA-A) package compatibility, 768 KB flash/128 KB RAM configuration, IEEE-754 FPU for floating-point math, and IEC60730 safety features including CRC, self-diagnostic A/D, and oscillation-stop detection.

Technical Context

The R5F56317DDBG#U0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU). It integrates dedicated hardware accelerators including a 32-bit multiplier (1-cycle execution), divider (2-cycle), and Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes.

Its peripheral subsystem includes an Ethernet controller (MII/RMII, 10/100 Mbps), USB 2.0 host/function/OTG module, three CAN channels (ISO 11898-1), four I²C interfaces (up to 1 Mbps), and dual A/D converters (21×12-bit + 8×10-bit) with sample-and-hold and conversion trigger flexibility via MTU2/TPU/TMR timers.

Key Specifications

Pinout & Package

Package: 176-pin LFBGA (PLBG0176GA-A), 13 × 13 mm body, 0.8 mm ball pitch, 133 configurable I/O pins with 5-V tolerance on 18 pins, pull-up resistors, and open-drain capability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317DDBG#U0, R5F563NEDDBG#U0 offers scalable flash for complex networking stacks, while R5F56317DFB#U0 reduces BOM cost and layout complexity by removing Ethernet hardware - both retain identical CPU performance, safety features, and peripheral set except Ethernet and package form factor.

Availability

R5F56317DDBG#U0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, building automation controllers, and embedded HMI terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317DDBG#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 R5F56317DDBG#U0, was designed for industrial networking applications demanding integrated Ethernet, functional safety compliance (IEC60730), real-time determinism, and secure firmware execution.

FAQ

What is the maximum operating frequency and core performance of the R5F56317DDBG#U0?

The R5F56317DDBG#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using its 32-bit RX CPU core. It includes a single-precision IEEE-754 floating-point unit (FPU) for hardware-accelerated math operations, enabling efficient real-time signal processing and control algorithms without software emulation overhead. This performance level is confirmed in Renesas document R01DS0098EJ0180.

Does the R5F56317DDBG#U0 include an Ethernet controller, and what interfaces does it support?

Yes, the R5F56317DDBG#U0 includes a fully integrated IEEE 802.3-compliant Ethernet MAC supporting both MII and RMII physical layer interfaces at 10/100 Mbps. It provides full- and half-duplex operation, flow control (IEEE 802.3x), and Magic Packet™ wake-on-LAN functionality. The dedicated EDMAC hardware accelerator handles descriptor-based frame transfers, reducing CPU load during network activity.

What memory resources are available on the R5F56317DDBG#U0?

The R5F56317DDBG#U0 integrates 768 KB of on-chip flash memory (with zero wait states at 100 MHz), 128 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 write/erase cycles. Flash supports on-board programming via SWD/JTAG or off-board parallel programming (for packages ≥100 pins). All memory blocks operate without wait states at maximum CPU speed.

Which safety and security features does the R5F56317DDBG#U0 provide for industrial applications?

The R5F56317DDBG#U0 includes multiple IEC60730 Class B compliance features: oscillation-stop detection, clock frequency measurement, CRC calculator (with three polynomials), independent watchdog timer (IWDT), and self-diagnostic A/D converter testing. For security, it integrates a Data Encryption Unit (DEU) supporting AES-128/192/256 encryption/decryption in ECB/CBC modes - all verified in the R01DS0098EJ0180 datasheet.

What package type and pin count does the R5F56317DDBG#U0 use, and how many I/O pins are available?

The R5F56317DDBG#U0 uses a 176-pin LFBGA package (PLBG0176GA-A), measuring 13 × 13 mm with 0.8 mm ball pitch. It provides 133 general-purpose I/O pins, of which 18 are 5-V tolerant, all configurable with pull-up resistors and open-drain output capability. This package is pin-compatible with other RX63N Group variants in the same footprint, such as R5F563NEDDBG#U0.