Renesas R5F56316DDFB#V0

Overview

R5F56316DDFB#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 embedded control applications requiring real-time processing, secure communications, and peripheral integration.

For engineers reviewing the R5F56316DDFB#V0 datasheet, R5F56316DDFB#V0 pinout, R5F56316DDFB#V0 application, or R5F56316DDFB#V0 equivalent, this MCU delivers deterministic real-time execution, hardware-accelerated AES encryption (DEU), dual 10-bit DACs, 21-channel 12-bit ADC with sample-and-hold, and full-speed USB 2.0 host/function/OTG - all in a 144-pin LQFP package with 5-V-tolerant I/O.

Technical Context

The R5F56316DDFB#V0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated peripherals including an Ethernet controller (MII/RMII), three CAN modules (ISO 11898-1 compliant), four I²C interfaces (one FM+), and a parallel data capture unit (PDC) for image sensor interfacing.

Its clock system combines external crystal oscillators (4–16 MHz), internal PLL, 50-MHz HOCO, and 125-kHz LOCO for flexible low-power operation. The MCU supports four low-power modes, battery-backed RTC, independent watchdog timer (IWDT), and IEC 60730 safety features including CRC calculator, oscillator stop detection, and A/D self-diagnostic function.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm body, 0.5 mm pitch, exposed pad (thermal pad not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316DDFB#V0, the R5F563NKHDFB#V0 adds extended temperature rating and unique ID at no cost to real-time performance or peripheral count, while R5F563NJDDFB#V0 trades PDC capability for doubled flash and RAM - enabling richer firmware without changing PCB layout.

Availability

R5F56316DDFB#V0 is available at Aetrix Electronics and suitable for industrial automation, networked HMI, secure edge IoT, and factory control systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F56316DDFB#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 enterprise markets.

The RX63N Group, including R5F56316DDFB#V0, was designed for high-performance, safety-certifiable industrial networking applications - integrating Ethernet, USB, CAN, and functional safety features into a single chip for reduced system complexity and bill-of-materials cost.

FAQ

What is the maximum operating frequency and core architecture of the R5F56316DDFB#V0?

The R5F56316DDFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core. This core implements a CISC Harvard architecture with a 5-stage pipeline, variable-length instructions, and supports 165 DMIPS performance. It includes a single-precision IEEE-754 floating-point unit, memory protection unit (MPU), and JTAG/FINE debugging interfaces - all confirmed in the R01DS0098EJ0180 datasheet for the RX63N Group.

Does the R5F56316DDFB#V0 include Ethernet functionality, and what interface standards does it support?

Yes, the R5F56316DDFB#V0 includes a fully integrated Ethernet MAC supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It complies with IEEE 802.3 and supports MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces. It also implements IEEE 802.3x flow control and Magic Packet™ wake-on-LAN detection - distinguishing it from the RX631 Group, which lacks Ethernet entirely.

What are the memory resources available on the R5F56316DDFB#V0?

The R5F56316DDFB#V0 integrates 1.5 MB of on-chip flash memory (with zero wait states at 100 MHz), 192 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 write/erase cycles. Flash supports on-board programming via SWD or FINE, and off-board parallel programming is supported due to its 144-pin LQFP package - all verified in Table 1.2 and Section 1.1 of the RX63N datasheet R01DS0098EJ0180.

Which analog peripherals are integrated into the R5F56316DDFB#V0?

The R5F56316DDFB#V0 integrates a 21-channel 12-bit A/D converter (S12ADa) with 1.0 µs conversion time at 50 MHz PCLK, an 8-channel 10-bit A/D converter (ADb), two 10-bit D/A converters (DAa), and an on-chip temperature sensor with ±1°C accuracy. The 12-bit ADC includes sample-and-hold, scan modes, and trigger sources from MTU2/TPU/TMR - all documented in Section 1.1 and Table 1.1 of the official Renesas datasheet.

Is the R5F56316DDFB#V0 suitable for IEC 60730 safety-critical applications?

Yes, the R5F56316DDFB#V0 includes multiple hardware features certified for IEC 60730 compliance: oscillation-stoppage detection, built-in CRC calculator (with three polynomials), independent watchdog timer (IWDT), self-diagnostic function for the 10-bit A/D converter, and frequency measurement capability. These are explicitly listed in the "Useful functions for IEC60730 compliance" section of the R01DS0098EJ0180 datasheet.