Renesas R5F5631ADDFP#V0

Overview

R5F5631ADDFP#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 768 KB on-chip flash memory, 128 KB SRAM, and 32 KB 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, RTC, Ethernet MAC (not present - RX631 excludes Ethernet), USB 2.0 function controller, CAN v2.0B (2 channels), and I²C (4 channels). It targets industrial HMI and motor control applications requiring deterministic real-time response and functional safety support per IEC60730.

For engineers reviewing the R5F5631ADDFP#V0 datasheet, R5F5631ADDFP#V0 pinout, R5F5631ADDFP#V0 application, or R5F5631ADDFP#V0 equivalent, this MCU delivers verified 165 DMIPS performance at 100 MHz, IEEE-754 single-precision FPU, MPU-enforced memory protection, JTAG/FINE debug interfaces, and low-power operation down to 500 µA/MHz - critical for embedded systems with thermal, timing, and certification constraints.

Technical Context

The R5F5631ADDFP#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and ultra-compact code density. It supports little-endian data arrangement and includes a 32-bit multiplier (1-cycle execution) and 32-bit divider (2-cycle execution), alongside DSP-oriented multiply-accumulate units.

Its clock system combines external crystal oscillator (4–16 MHz), internal 50 MHz HOCO and 125 kHz LOCO, and PLL frequency synthesis - enabling independent scaling of ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz). The device lacks Ethernet MAC and SDRAM controller - distinguishing it from RX63N variants and confirming its RX631 Group identity 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.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5631ADDFP#V0, R5F563NADDFP#V0 adds Ethernet and memory expansion at higher power and complexity, while R5F562TADFP#V0 trades USB/FPU for motor-specific peripherals and reduced memory - making R5F5631ADDFP#V0 the balanced choice for HMI-integrated industrial controllers needing both computation and connectivity.

Availability

R5F5631ADDFP#V0 is available at Aetrix Electronics and suitable for industrial HMI panels, motor control drives, smart energy meters, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for R5F5631ADDFP#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, and power solutions for automotive, industrial, and IoT markets.

The RX631 Group is designed for cost-optimized industrial automation and human-machine interface applications where USB connectivity, real-time determinism, functional safety features, and mixed-signal integration are essential - without requiring Ethernet or external memory expansion.

FAQ

What is the maximum operating frequency and core type of the R5F5631ADDFP#V0?

The R5F5631ADDFP#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core. This core delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit, 5-stage pipeline, and variable-length instruction set. Its architecture supports deterministic real-time execution critical for industrial control loops and HMI responsiveness - all confirmed in Renesas document R01DS0098EJ0180.

Does the R5F5631ADDFP#V0 include an Ethernet MAC controller?

No, the R5F5631ADDFP#V0 does not include an Ethernet MAC controller. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality per Renesas documentation (R01DS0098EJ0180, Section 1.2 and Table 1.2). Ethernet is only available in the RX63N Group. The R5F5631ADDFP#V0 retains USB 2.0 function mode, CAN, and multiple serial interfaces for alternative wired connectivity.

What are the memory resources available on the R5F5631ADDFP#V0?

The R5F5631ADDFP#V0 integrates 768 KB of on-chip flash memory (zero-wait-state at 100 MHz), 128 KB of SRAM, and 32 KB of reprogrammable data flash (rated for 100,000 erase/write cycles). These resources support complex firmware with GUI assets, real-time buffers, and non-volatile parameter storage - validated in Table 1.1 and product listing R01DS0098EJ0180 page 9.

Which analog peripherals are integrated into the R5F5631ADDFP#V0?

The R5F5631ADDFP#V0 integrates a 12-bit A/D converter with 21 input channels, an 8-channel 10-bit A/D converter, and two 10-bit D/A converters. All ADCs feature sample-and-hold circuits and support software, timer-triggered, or external-event conversion starts. The DACs provide voltage outputs from 0 V to VREFH. These capabilities are documented in Sections 1.1 and Table 1.1 of R01DS0098EJ0180.

What package type and pin count does the R5F5631ADDFP#V0 use?

The R5F5631ADDFP#V0 uses the PLQP0100KB-A package: a 100-pin LQFP measuring 14 × 14 mm with 0.5 mm pitch. This package supports 78 general-purpose I/O pins, 18 of which are 5-V tolerant, and includes dedicated pins for USB, CAN, SCI, I²C, ADC, DAC, and RTC functions - as specified in Table 1.1 and Figure 1.1 of R01DS0098EJ0180.