Renesas R5F56316SDLC#U0

Overview

R5F56316SDLC#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 128 KB SRAM. It supports USB 2.0 host/function/OTG, CAN (3 channels), 13 SCI interfaces, 4 I²C buses, and operates from a 2.7–3.6 V supply in industrial temperature range (−40 to +85°C). Used in networked industrial controllers requiring deterministic real-time response and secure firmware execution.

For engineers reviewing the R5F56316SDLC#U0 datasheet, R5F56316SDLC#U0 pinout, R5F56316SDLC#U0 application, or R5F56316SDLC#U0 equivalent, key selection criteria include Ethernet MAC support (vs. RX631), 512 KB flash/128 KB RAM configuration, LQFP-176 package with 133 GPIOs, 12-bit A/D (21 ch), 10-bit D/A (2 ch), AES-128/192/256 DEU, and IEC60730 safety features including CRC and self-diagnostic A/D.

Technical Context

The R5F56316SDLC#U0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and MPU for memory protection. It integrates dedicated hardware accelerators: Ethernet DMA controller (EDMAC), Data Transfer Controller (DTC), and EXDMA for TFT LCD interfacing - enabling concurrent high-bandwidth peripheral operations without CPU intervention.

Its clock system includes PLL, 50-MHz HOCO, 125-kHz LOCO, and subclock oscillator with oscillation-stop detection. Real-time capabilities are reinforced by RTC with battery backup, 20+ timers (MTU2, TPU, TMR, CMT), and programmable pulse generator (PPG) for precise waveform generation and A/D trigger synchronization.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS compliant, with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316SDLC#U0, R5F56318SDLC#U0 offers scalable flash for complex networking stacks while maintaining full hardware compatibility; R5F56305SDLF#U0 removes Ethernet functionality and associated pins, making it a lower-cost alternative only for isolated control applications without LAN connectivity.

Availability

R5F56316SDLC#U0 is available at Aetrix Electronics and suitable for industrial automation, building management systems, and networked energy metering requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F56316SDLC#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 R5F56316SDLC#U0, was designed for deterministic real-time industrial networking applications requiring integrated Ethernet, functional safety compliance (IEC60730), and secure firmware execution.

FAQ

What is the maximum operating frequency and core performance of the R5F56316SDLC#U0?

The R5F56316SDLC#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS performance using its 32-bit RX CPU core. Its single-precision IEEE-754 floating-point unit enables efficient execution of real-time control algorithms. The R5F56316SDLC#U0 achieves this performance with zero-wait-state access to both 512 KB flash and 128 KB SRAM, ensuring deterministic timing for critical tasks.

Does the R5F56316SDLC#U0 support Ethernet connectivity, and what PHY interfaces does it provide?

Yes, the R5F56316SDLC#U0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting 10/100 Mbps in full- and half-duplex modes. It provides both MII and RMII physical layer interfaces via dedicated pins (ETH_MDC/MDIO, ETH_TXD[0:3], ETH_RXD[0:3]), allowing direct connection to standard Ethernet PHYs. The on-chip EDMAC handles descriptor-based packet transfers, offloading CPU processing overhead.

What are the memory resources available on the R5F56316SDLC#U0?

The R5F56316SDLC#U0 includes 512 KB of on-chip flash memory (zero-wait-state at 100 MHz), 128 KB of SRAM (also zero-wait-state), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. The flash supports on-board programming and parallel programming (for ≥100-pin packages), while the SRAM retains content during deep software standby when backed up via VBATT.

How does the R5F56316SDLC#U0 support functional safety standards like IEC60730?

The R5F56316SDLC#U0 includes multiple hardware features for IEC60730 Class B compliance: oscillation-stop detection for clock monitoring, CRC calculator for memory/data integrity, independent watchdog timer (IWDT) with dedicated LOCO clock, self-diagnostic A/D converter, and register write protection. These are documented in Renesas Application Note R01AN1301 and supported by certified safety libraries.

What package type and pin count does the R5F56316SDLC#U0 use, and is it RoHS compliant?

The R5F56316SDLC#U0 uses the PLQP0176KB-A package: a 176-pin LQFP with 24 × 24 mm body size, 0.5 mm pitch, and exposed thermal pad. It is RoHS compliant and rated for industrial temperature range (−40 to +85°C). This package provides 133 general-purpose I/O pins, including 18 with 5-V tolerance and configurable pull-up/open-drain functionality.