Renesas R5F5631YDGFC#V0

Overview

R5F5631YDGFC#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 1 MB on-chip flash memory, 192 KB SRAM, 32 KB data flash, and integrated 10- and 12-bit A/D converters. It supports USB 2.0 full-speed host/function, CAN (2 channels), up to 13 SCI interfaces, I²C (4 channels), and operates from a single 2.7–3.6 V supply across –40 to +85°C. Designed for industrial control and networked edge devices without Ethernet.

For engineers reviewing the R5F5631YDGFC#V0 datasheet, R5F5631YDGFC#V0 pinout, R5F5631YDGFC#V0 application, or R5F5631YDGFC#V0 equivalent, this MCU delivers deterministic real-time performance with IEEE-754 FPU, MPU, JTAG/FINE debug, and IEC60730 safety features - critical for motor control, HMI, and programmable logic applications requiring high-integrity firmware execution.

Technical Context

The R5F5631YDGFC#V0 implements the RXv1 core with 5-stage CISC Harvard pipeline, 165 DMIPS at 100 MHz, and single-cycle 32×32-bit multiply. It integrates a memory protection unit (MPU), dual-clock domain (ICLK/PCLK), and independent watchdog timer (IWDT) driven by dedicated 125-kHz LOCO oscillator.

Its peripheral set excludes Ethernet MAC and SDRAM controller (distinguishing it from RX63N), but includes full-featured USB 2.0 OTG/host, CAN v2.0B with 32 mailboxes per channel, and parallel data capture unit (PDC) supporting image sensor interfacing via DTC/DMAC transfers to internal RAM or external CS space.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F563NEDDFC, R5F5631YDGFC#V0 removes Ethernet complexity while retaining identical USB/CAN/SCI peripheral count and 192 KB SRAM - ideal for non-Ethernet edge controllers. Against R5F566TEBDFP, it trades peak clock speed for broader I/O availability and mature toolchain support in established industrial designs.

Availability

R5F5631YDGFC#V0 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, PLC I/O modules, and HMI controllers requiring stable component supply and long-term manufacturing continuity.

Supply support for R5F5631YDGFC#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 RX631 Group targets cost-optimized industrial control applications, delivering high-CPU-performance with integrated safety features, rich analog/motor-control peripherals, and USB/CAN connectivity - all without Ethernet overhead.

FAQ

What is the maximum operating frequency and CPU performance of the R5F5631YDGFC#V0?

The R5F5631YDGFC#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using the RXv1 32-bit CPU core. Its single-cycle 32×32-bit multiplier and IEEE-754 floating-point unit enable efficient execution of real-time control algorithms. This performance level is confirmed in the R01DS0098EJ0180 datasheet Section 1.1 and is consistent across all RX631 Group variants including the R5F5631YDGFC#V0.

Does the R5F5631YDGFC#V0 include an Ethernet MAC interface?

No, the R5F5631YDGFC#V0 does not include an Ethernet MAC interface. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality - unlike the RX63N Group. This distinction is clearly stated in the document's feature summary and Table 1.2, confirming that R5F5631YDGFC#V0 is optimized for applications requiring USB, CAN, and serial connectivity without Ethernet overhead.

What package type and pin count does the R5F5631YDGFC#V0 use?

The R5F5631YDGFC#V0 uses the PLQP0176KB-A package: a 176-pin LQFP with 24 × 24 mm body size and 0.5 mm pitch. This package is confirmed in Table 1.3 of the R01DS0098EJ0180 datasheet under the RX631 Group listing, and supports 111 general-purpose I/O pins, 18 of which are 5-V tolerant - making it suitable for mixed-voltage industrial interfacing.

How much on-chip memory does the R5F5631YDGFC#V0 integrate?

The R5F5631YDGFC#V0 integrates 1 MB of on-chip flash memory, 192 KB of SRAM, and 32 KB of reprogrammable data flash. These values are specified in Table 1.3 for part number R5F5631YDGFC#V0 and verified in Section 1.1's memory classification table. The flash supports zero-wait-state operation at 100 MHz, and the data flash is rated for 100,000 erase/write cycles.

Which communication interfaces are supported by the R5F5631YDGFC#V0?

The R5F5631YDGFC#V0 supports USB 2.0 full-speed host/function/OTG, CAN (2 channels, ISO 11898-1 compliant), up to 13 SCI interfaces (including LIN and smart-card modes), 4 I²C channels (one FM+), 3 RSPI channels, and IEBus. These are fully documented in Table 1.2 and Section 1.1's communication function description - with no Ethernet or SDRAM controller included, distinguishing it from RX63N variants.