Renesas R5F56316DDFC#V0

Overview

R5F56316DDFC#V0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5 MB on-chip flash memory, and 192 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 R5F56316DDFC#V0 datasheet, R5F56316DDFC#V0 pinout, R5F56316DDFC#V0 application, or R5F56316DDFC#V0 equivalent, key selection criteria include Ethernet MAC support (MII/RMII), USB 2.0 host/function/OTG capability, CAN v2.0B compliance with 32 mailboxes, 21-channel 12-bit A/D converter with sample-and-hold, and AES-128/192/256 encryption via DEU for IEC60730-compliant safety firmware.

Technical Context

The R5F56316DDFC#V0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated hardware accelerators including a 32-bit multiplier (1-cycle execution), divider (2-cycle), and DSP-oriented multiply-accumulate units for signal processing workloads.

Its peripheral subsystem includes an Ethernet controller (ETHERC) with 2 KB TX/RX FIFOs and descriptor-based DMA (EDMAC), three CAN modules (ISO 11898-1 compliant), four I²C interfaces (one FM+ at 1 Mbps), and dual A/D converters - one 12-bit (21 channels, 1 µs conversion) and one 10-bit (8 channels) - both supporting trigger-start from MTU2/TPU/TMR timers or external pins.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A (176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316DDFC#V0, R5F563NKHDFC#V0 offers 512 KB more flash for feature-rich firmware or dual-bank updates, while R5F563NECDFC#V0 trades 64 KB SRAM for lower cost-both retain identical Ethernet, USB, CAN, and security peripherals in the same 176-pin LQFP footprint.

Availability

R5F56316DDFC#V0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, building automation controllers, secure HMIs, and networked PLC I/O modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F56316DDFC#V0 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 R5F56316DDFC#V0, was designed for high-performance, safety-certifiable industrial networking applications-integrating Ethernet, USB, CAN, and cryptographic acceleration into a single chip to reduce system BOM and simplify certification.

FAQ

What is the maximum operating frequency and core architecture of the R5F56316DDFC#V0?

The R5F56316DDFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables deterministic real-time execution and compact code size critical for industrial control firmware.

Does the R5F56316DDFC#V0 support Ethernet connectivity, and what interface standards does it implement?

Yes, the R5F56316DDFC#V0 integrates a full-featured Ethernet MAC supporting 10/100 Mbps operation in both full- and half-duplex modes. It implements IEEE 802.3u-compliant MII and RMII physical layer interfaces, includes 2 KB transmit/receive FIFOs, and features descriptor-based DMA (EDMAC) to minimize CPU overhead during packet processing.

What analog peripherals are included in the R5F56316DDFC#V0, and what are their resolution and channel counts?

The R5F56316DDFC#V0 includes two independent A/D converters: a 12-bit S12AD unit with 21 input channels and 1 µs conversion time, and a 10-bit AD unit with 8 input channels. It also provides two 10-bit D/A output channels and an on-die temperature sensor with ±1°C accuracy-all accessible via shared or dedicated I/O pins in the 176-pin LQFP package.

How does the R5F56316DDFC#V0 support functional safety standards like IEC60730?

The R5F56316DDFC#V0 includes hardware features required for Class B IEC60730 compliance: oscillation-stop detection, CRC calculator with three polynomial options, independent watchdog timer (IWDT) with dedicated LOCO clock, self-diagnostic A/D test mode, and memory protection unit (MPU). These reduce software validation effort and eliminate need for external safety monitors.

What is the flash and SRAM capacity of the R5F56316DDFC#V0, and how is it configured for zero-wait-state operation?

The R5F56316DDFC#V0 contains 1.5 MB of on-chip flash memory and 192 KB of SRAM, both operating at zero wait states up to 100 MHz. Flash supports on-board programming and background erase/write operations; SRAM is unified for instructions and data, with optional deep software standby backup retention for critical variables during low-power modes.