Renesas R5F5631PDGFM#V0

Overview

R5F5631PDGFM#V0 from Renesas is a 100 MHz, 32-bit RX CPU core microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, and no Ethernet controller. It integrates a 12-bit A/D converter (21 channels), 10-bit A/D converter (8 channels), dual 10-bit D/A converters, real-time clock, USB 2.0 function controller, CAN interface, and I²C/SCI/RSPI peripherals - designed for industrial control and embedded HMI applications requiring deterministic real-time performance and functional safety support.

For engineers reviewing the R5F5631PDGFM#V0 datasheet, R5F5631PDGFM#V0 pinout, R5F5631PDGFM#V0 application, or R5F5631PDGFM#V0 equivalent, key selection criteria include its RX631 Group identity (no Ethernet MAC), 144-pin LQFP package (PLQP0144KA-A), -40°C to +85°C operating range (D version), 2.7–3.6 V supply, and IEC60730-compliant self-diagnostic features including CRC, IWDT, and A/D converter self-test.

Technical Context

The R5F5631PDGFM#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, supporting 165 DMIPS at 100 MHz and IEEE-754 single-precision floating-point operations. Its memory subsystem includes zero-wait-state 100 MHz flash (512 KB), 64 KB SRAM, and 32 KB reprogrammable data flash (100,000 erase/write cycles).

Peripheral integration centers on deterministic real-time control: MTU2 and TPU timers deliver PWM, input capture, and phase-counting; SCI modules (up to 13 channels) support asynchronous, smart-card, SPI-like, and I²C-like modes; and the DEU provides AES-128/192/256 encryption in ECB/CBC mode - all managed via a 16-level interrupt controller with 187 sources.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (PLQP0144KA-A), 20 mm × 20 mm, 0.5 mm pitch, exposed pad for thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5631PDGFM#V0, R5F563NEDDFB enables Ethernet-enabled edge node designs but requires PCB redesign due to larger package and different peripheral mapping; R5F562TADFP reduces BOM cost for motor-centric systems but lacks USB, CAN, and cryptographic acceleration.

Availability

R5F5631PDGFM#V0 is available at Aetrix Electronics and suitable for industrial automation, building management systems, and medical device UIs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5631PDGFM#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 and consumer embedded applications needing real-time determinism, functional safety compliance, and rich peripheral integration - without Ethernet overhead.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F5631PDGFM#V0?

The R5F5631PDGFM#V0 operates at a maximum frequency of 100 MHz and uses the 32-bit RX CPU core with a 5-stage pipeline, delivering 165 DMIPS. It supports IEEE-754 single-precision floating-point arithmetic, 32-bit multiplier (1-cycle execution), and hardware divider (2-cycle execution). The core includes memory protection unit (MPU) and JTAG/FINE debugging interfaces - all confirmed in the R01DS0098EJ0180 datasheet for the RX631 Group. This architecture ensures deterministic real-time response critical for R5F5631PDGFM#V0-based control systems.

Does the R5F5631PDGFM#V0 include an Ethernet controller?

No, the R5F5631PDGFM#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and associated EDMAC peripheral. This distinguishes it from the RX63N Group (e.g., R5F563NEDDFB), which integrates full IEEE 802.3 10/100 Mbps Ethernet with MII/RMII support. The R5F5631PDGFM#V0 retains USB 2.0 function mode, CAN, and multiple SCI/I²C interfaces - making it suitable for non-networked embedded control where Ethernet is unnecessary. This difference is clearly documented in Table 1.2 of the R01DS0098EJ0180 specification.

What are the memory resources available on the R5F5631PDGFM#V0?

The R5F5631PDGFM#V0 integrates 512 KB of on-chip flash memory (zero-wait-state at 100 MHz), 64 KB of SRAM (also zero-wait-state), and 32 KB of data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via SWD or SCI bootloader; SRAM retains content during deep software standby when backed by VBATT. These values are specified in Table 1.1 and confirmed for the 144-pin LQFP variant in the RX631 Group product list. No external ROM or RAM is required for basic R5F5631PDGFM#V0 operation.

Which analog peripherals are integrated into the R5F5631PDGFM#V0?

The R5F5631PDGFM#V0 integrates two independent A/D converters: a 21-channel 12-bit S12AD unit with sample-and-hold and a separate 8-channel 10-bit AD unit, both achieving 1.0 μs conversion time at 50 MHz PCLK. It also includes two 10-bit D/A channels (DA0/DA1) with 0 V to VREFH output range, plus an on-die temperature sensor (±1°C accuracy) digitized via the 12-bit A/D. These peripherals are fully documented in Sections 1.1 and Table 1.1 of R01DS0098EJ0180 and are present in all RX631 Group 144-pin variants including R5F5631PDGFM#V0.

What package type and pin count does the R5F5631PDGFM#V0 use?

The R5F5631PDGFM#V0 uses a 144-pin LQFP package (PLQP0144KA-A), measuring 20 mm × 20 mm with 0.5 mm pitch and an exposed thermal pad. It provides 111 general-purpose I/O pins, 18 of which are 5-V tolerant, along with dedicated pins for USB, crystal oscillator, reset, and power. This package is explicitly listed in Table 1.3 for RX631 Group parts and matches the footprint and thermal profile required for industrial PCB layouts. The R5F5631PDGFM#V0's pinout is fully defined in the "Pin Configuration" section of the R01DS0098EJ0180 datasheet.