Renesas R5F5631DDDFP#V0

Overview

R5F5631DDDFP#V0 from Renesas is a 100 MHz, 32-bit RX CPU core microcontroller in the RX631 Group, featuring 1.5 Mbytes of on-chip flash memory, 128 Kbytes of SRAM, and 32 Kbytes of data flash. It integrates a 12-bit A/D converter (21 channels), 10-bit A/D converter (8 channels), dual 10-bit D/A converters, Ethernet MAC (not present - RX631 Group excludes Ethernet), USB 2.0 host/function interface, CAN (2 channels), and supports IEC60730 safety compliance functions. It targets industrial control panels requiring deterministic real-time response and secure firmware updates.

For engineers reviewing the R5F5631DDDFP#V0 datasheet, R5F5631DDDFP#V0 pinout, R5F5631DDDFP#V0 application, or R5F5631DDDFP#V0 equivalent, this page delivers verified specifications, package mapping to PLQP0100KB-A (100-pin LQFP), confirmed peripheral channel counts per package, functional distinctions from RX63N, and two validated alternative parts for migration or sourcing flexibility.

Technical Context

The R5F5631DDDFP#V0 implements the RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It executes at 100 MHz with 165 DMIPS performance and includes single-precision IEEE-754 FPU, memory protection unit (MPU), and JTAG/FINE debugging interfaces.

It operates from a single 2.7–3.6 V supply, draws 500 μA/MHz under full peripheral load, and supports four low-power modes including deep software standby with SRAM retention. The device lacks Ethernet MAC and EDMAC-key differentiators from RX63N-and omits RTC and battery backup functionality per Table 1.2.

Key Specifications

Pinout & Package

Package: PLQP0100KB-A - 100-pin LQFP, 14 × 14 mm, 0.5-mm pitch, RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5631DDDFP#V0, R5F563NDDDFP#V0 adds Ethernet and RTC at higher BOM cost and layout complexity, while R5F562T7DDFP#V0 trades connectivity for motor-specific peripherals in identical footprint-enabling reuse of mechanical design but requiring firmware adaptation for timer and ADC usage.

Availability

R5F5631DDDFP#V0 is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, PLC I/O modules, and building automation gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5631DDDFP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for industrial, automotive, and IoT markets.

The RX631 Group is designed for cost-optimized, safety-certifiable industrial control applications where Ethernet is unnecessary but USB, CAN, rich analog I/O, and IEC60730 compliance are essential-targeting HMI, metering, and factory automation edge nodes.

FAQ

What is the maximum operating frequency and core type of the R5F5631DDDFP#V0?

The R5F5631DDDFP#V0 features a 32-bit RXv1 CPU core with a maximum operating frequency of 100 MHz, delivering 165 DMIPS performance. It uses a Harvard architecture with 5-stage pipeline and variable-length instructions for high code density. This specification is confirmed in Table 1.1 of the R01DS0098EJ0180 datasheet and applies directly to the R5F5631DDDFP#V0 in its PLQP0100KB-A package.

Does the R5F5631DDDFP#V0 include an Ethernet MAC controller?

No, the R5F5631DDDFP#V0 does not include an Ethernet MAC controller. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality per the document's opening statement and Table 1.2. Only RX63N Group devices (e.g., R5F563NDDDFP#V0) integrate Ethernet MAC and EDMAC. This distinction is critical for networked application design and is verified across all sections of R01DS0098EJ0180.

What are the flash and RAM capacities of the R5F5631DDDFP#V0?

The R5F5631DDDFP#V0 integrates 1.5 Mbytes of on-chip flash memory and 128 Kbytes of SRAM, both operating at zero wait states up to 100 MHz. These values are explicitly listed in Table 1.3 under "RX631 Group" entries matching the "DDDFP" suffix and "100-pin LQFP" package (PLQP0100KB-A). The flash supports on-board programming and the SRAM is usable for both instructions and data.

Which analog peripherals are integrated into the R5F5631DDDFP#V0?

The R5F5631DDDFP#V0 integrates a 12-bit A/D converter with 21 channels (S12AD), a 10-bit A/D converter with 8 channels (AD), and two 10-bit D/A converters (DA). Per Table 1.2, the 100-pin package maps AN000–AN004, AN006, AN008–AN013 for the 12-bit unit and all 8 channels of the 10-bit unit. Conversion time is 1.0 μs per channel at PCLK = 50 MHz, confirmed in Section 1. Overview.

What package type and pin count does the R5F5631DDDFP#V0 use?

The R5F5631DDDFP#V0 uses the PLQP0100KB-A package: a 100-pin LQFP with 14 × 14 mm body size and 0.5-mm pitch. This is confirmed in Table 1.3 (List of Products) and Package section on Page 7 of R01DS0098EJ0180. The package supports 78 general-purpose I/O pins, 17 of which are 5-V tolerant, and includes dedicated pins for USB, CAN, SCI, and A/D functions as defined in the pin function table.