Renesas R5F5631ECDLK#U0

Overview

R5F5631ECDLK#U0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 2 MB on-chip flash memory, 128 KB SRAM, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 12-bit/10-bit A/D converters - designed for industrial control systems requiring deterministic real-time response and functional safety support (IEC60730).

For engineers reviewing the R5F5631ECDLK#U0 datasheet, R5F5631ECDLK#U0 pinout, R5F5631ECDLK#U0 application, or R5F5631ECDLK#U0 equivalent, this device offers verified Ethernet MAC omission, USB 2.0 host/function capability, CAN v2.0B compliance, and hardware CRC acceleration - critical for embedded gateway, motor control, and HMI applications where peripheral integration and code efficiency are prioritized.

Technical Context

The R5F5631ECDLK#U0 implements the CISC Harvard-architecture RX CPU with 5-stage pipeline, variable-length instructions, and MPU support - enabling ultra-compact code density and memory protection for certified firmware. It executes at 165 DMIPS @ 100 MHz with dedicated 32×32→64-bit multiplier and 32/32→32-bit divider.

Its clock system integrates PLL, 50-MHz HOCO, and 125-kHz LOCO oscillators with independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz), ensuring precise timing domain isolation across CPU, peripherals, FlashIF, and external bus interfaces.

Key Specifications

Pinout & Package

Package: 145-pin TFLGA (PTLG0145KA-A), 7 mm × 7 mm, 0.5 mm pitch, 0.8 mm height - optimized for space-constrained industrial PCBs with high I/O density and thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F563NEDDLK#U0, the R5F5631ECDLK#U0 omits Ethernet hardware to lower power and BOM cost while retaining identical USB, CAN, and analog capabilities; versus R5F566TEBDFP#U0, it trades higher clock speed and SRAM for proven RX63x toolchain maturity and broader peripheral compatibility in established designs.

Availability

R5F5631ECDLK#U0 is available at Aetrix Electronics and suitable for industrial automation, motor control, and HMI gateway applications requiring stable component supply, long-term lifecycle assurance, and full Renesas toolchain support.

Supply support for R5F5631ECDLK#U0 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 engineered for cost-optimized industrial control applications - balancing high CPU performance, rich analog/mixed-signal integration, and functional safety features without Ethernet overhead.

FAQ

What is the maximum operating frequency and core architecture of the R5F5631ECDLK#U0?

The R5F5631ECDLK#U0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit, 32×32-bit hardware multiplier, and 32/32-bit divider - all confirmed in the R01DS0098EJ0180 datasheet Rev.1.80.

Does the R5F5631ECDLK#U0 include an Ethernet MAC controller?

No, the R5F5631ECDLK#U0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and associated EDMAC controller. This distinguishes it from the RX63N Group (e.g., R5F563NEDDLK#U0). The R5F5631ECDLK#U0 retains full USB 2.0 host/function, CAN, SCI, RSPI, and RIIC interfaces - making it ideal for non-Ethernet industrial connectivity applications.

What memory resources are integrated into the R5F5631ECDLK#U0?

The R5F5631ECDLK#U0 integrates 2 Mbytes of on-chip flash memory (100 MHz, zero-wait-state), 128 Kbytes of SRAM (no-wait-state), and 32 Kbytes of reprogrammable data flash rated for 100,000 erase/write cycles. These resources are validated in Table 1.1 of the R01DS0098EJ0180 datasheet and support robust firmware updates, real-time data logging, and deterministic control execution without external memory.

Which package type and pin count does the R5F5631ECDLK#U0 use?

The R5F5631ECDLK#U0 uses a 145-pin TFLGA package (PTLG0145KA-A), measuring 7 mm × 7 mm with 0.5 mm pitch. This land-grid array format provides high I/O density, excellent thermal dissipation, and compact footprint - confirmed in Table 1.2 and page 7 of the R01DS0098EJ0180 datasheet for RX63N/RX631 Group devices.

What safety and security features does the R5F5631ECDLK#U0 support for certified applications?

The R5F5631ECDLK#U0 includes hardware CRC calculator (three polynomials), AES-128/192/256 encryption/decryption via DEU, independent watchdog timer (IWDT) with dedicated LOCO clock, oscillation-stop detection, and A/D converter self-diagnostic - all documented in the R01DS0098EJ0180 datasheet as compliant with IEC60730 Class B requirements for household and similar equipment.