Renesas R5S72621W144FP#U0

Overview

R5S72621W144FP#U0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring integrated FPU, 1 MB on-chip Flash memory, 128 KB RAM, and support for CAN 2.0B, USB 2.0 FS, and multiple serial interfaces. It operates at up to 120 MHz, targets automotive body control and industrial automation, and is qualified for Standard-grade applications.

For engineers reviewing the R5S72621W144FP#U0 datasheet, R5S72621W144FP#U0 pinout, R5S72621W144FP#U0 application, or R5S72621W144FP#U0 equivalent, key selection criteria include its SH-2A CPU with FPU, 144-pin LQFP package, 120 MHz max frequency, CAN/USB peripheral integration, and industrial temperature range (−40°C to +85°C).

Technical Context

The R5S72621W144FP#U0 implements the SH-2A superscalar RISC architecture with dual-issue pipeline, IEEE 754-compliant floating-point unit, and hardware multiplier/divider. It supports real-time interrupt handling via 256-vector priority-controlled interrupt controller and includes dedicated peripherals for motor control (MTU3), analog acquisition (12-bit ADC × 24 channels), and secure boot via ROM-based bootloader.

Its clock system integrates PLL, on-chip oscillator, and flexible clock routing with FRQCR register control; memory subsystem includes 1 MB Flash with ECC, 128 KB SRAM with parity, and external bus interface supporting 16-bit data width and wait-state programmability for legacy peripherals.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72621W144FP#U0, the R5S72622W144FP#U0 offers higher memory density with zero hardware redesign effort, while the R5F72664W144FP#U0 shifts focus toward industrial Ethernet-making it better suited for synchronized multi-axis systems but less optimal for USB-connected HMI or diagnostic tools.

Availability

R5S72621W144FP#U0 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLCs, motor drive subsystems, and smart energy gateways requiring stable component supply across multi-year production cycles.

Supply support for R5S72621W144FP#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The SH7260 Series-including R5S72621W144FP#U0-is designed for real-time embedded control in cost-sensitive, high-reliability applications where deterministic performance, integrated analog/motor peripherals, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the R5S72621W144FP#U0?

The R5S72621W144FP#U0 operates at a maximum frequency of 120 MHz, achieved via its on-chip PLL with programmable multiplication factor. This frequency is validated across the full industrial temperature range (−40°C to +85°C) and supports real-time execution of complex control algorithms such as field-oriented motor control and multi-sensor fusion. The R5S72621W144FP#U0 achieves this speed using the SH-2A superscalar core with dual-issue pipeline and hardware branch prediction.

Does the R5S72621W144FP#U0 include an integrated floating-point unit?

Yes, the R5S72621W144FP#U0 integrates a full IEEE 754-compliant single-precision floating-point unit (FPU) as part of its SH-2A CPU core. This FPU supports addition, subtraction, multiplication, division, square root, and fused multiply-add operations with hardware exception handling. The R5S72621W144FP#U0 uses the FPU to accelerate math-intensive tasks such as motor control transforms and digital filter computations without software emulation overhead.

What package type and pin count does the R5S72621W144FP#U0 use?

The R5S72621W144FP#U0 is housed in a 144-pin LQFP package measuring 20 mm × 20 mm with 0.5 mm pin pitch. This RoHS-compliant package supports standard surface-mount assembly and provides dedicated power/ground pairs for analog and digital domains. The R5S72621W144FP#U0's pin assignment includes multiplexed functions-for example, pins can be configured as either SCI or CAN-enabling flexible board design without increasing footprint.

Which communication interfaces are integrated into the R5S72621W144FP#U0?

The R5S72621W144FP#U0 integrates two CAN 2.0B controllers, one USB 2.0 Full-Speed device controller, six serial communication interfaces (SCI), and two I²C buses. These interfaces operate concurrently and are independently clocked, allowing simultaneous CAN network messaging, USB-based firmware updates, and I²C sensor polling. The R5S72621W144FP#U0 supports automatic CAN bit timing calculation and USB suspend/resume for low-power operation.

Is the R5S72621W144FP#U0 qualified for automotive applications?

The R5S72621W144FP#U0 is rated for Standard-grade quality per Renesas' classification, making it suitable for automotive body electronics (e.g., door modules, lighting controllers) but not for safety-critical powertrain or ADAS systems. It meets AEC-Q100 Grade 3 requirements (−40°C to +85°C) and includes features such as ECC-protected Flash, parity-checked RAM, and watchdog timers essential for automotive reliability. The R5S72621W144FP#U0 is widely deployed in Tier-1 body control units where functional safety ASIL-B compliance is not mandated.