Renesas R5S72642W144FP#U0

Overview

R5S72642W144FP#U0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SH-2A CPU core, featuring integrated FPU, 1 MB flash memory, 128 KB RAM, and dual CAN 2.0B controllers. It operates at up to 120 MHz, supports -40°C to +85°C industrial temperature range, and targets real-time motor control and industrial automation systems requiring deterministic timing and floating-point math.

For engineers reviewing the R5S72642W144FP#U0 datasheet, R5S72642W144FP#U0 pinout, R5S72642W144FP#U0 application, or R5S72642W144FP#U0 equivalent, key selection criteria include SH-2A instruction set compatibility, on-chip FPU support for servo algorithms, 144-pin LQFP package with dedicated encoder interface pins, and CAN FD readiness via software-configurable bit timing.

Technical Context

The R5S72642W144FP#U0 implements the SH-2A superscalar RISC architecture with dual-issue pipeline, 32-bit integer ALU, and IEEE 754-compliant single/double-precision FPU. It integrates a programmable clock pulse generator supporting PLL multiplication (×1–×8), multiple low-power modes (HALT/STOP), and hardware debug support via JTAG interface.

Peripheral integration includes two 12-bit ADCs (16-channel total), four 32-bit timer units with quadrature encoder input capability, six serial communication interfaces (SCI ×3, RSPI ×2, I²C ×1), and dual CAN controllers with message RAM and FIFO buffering - all synchronized to the same system clock domain for deterministic latency.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, industrial-grade thermal profile (θ_JA = 32°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72642W144FP#U0, R5S72640W144FP#U0 sacrifices FPU and memory for cost-sensitive scalar control, while R5F57266W144FP#U0 offers architectural evolution at the expense of SH-2A instruction-level compatibility and CAN FD readiness.

Availability

R5S72642W144FP#U0 is available at Aetrix Electronics and suitable for industrial motor drives, automated test equipment, building HVAC controllers, and power converter monitoring systems requiring stable component supply and long lifecycle support.

Supply support for R5S72642W144FP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The SH7264 Group, including R5S72642W144FP#U0, was designed for high-performance real-time control in motor drives, factory automation, and energy systems - emphasizing deterministic timing, integrated analog/motion peripherals, and industrial temperature resilience.

FAQ

What is the maximum operating frequency of the R5S72642W144FP#U0?

The R5S72642W144FP#U0 operates at a maximum CPU frequency of 120 MHz, achieved via its on-chip PLL clock pulse generator with programmable multiplication factors (×1 to ×8) and support for external crystal or clock input sources up to 20 MHz. This frequency is guaranteed across the full industrial temperature range (-40°C to +85°C) under specified supply voltage conditions.

Does the R5S72642W144FP#U0 support CAN FD?

The R5S72642W144FP#U0 implements CAN 2.0B only and does not support CAN FD physical layer or protocol features. Its dual CAN controllers provide full CAN 2.0B compliance with programmable bit timing, message RAM, and hardware filtering - sufficient for traditional industrial fieldbus applications but not for higher-speed CAN FD use cases.

What debug interface does the R5S72642W144FP#U0 use?

The R5S72642W144FP#U0 uses a standard JTAG interface compliant with IEEE 1149.1 for boundary-scan testing and on-chip debugging. It supports full real-time trace, breakpoint setting, and register inspection via Renesas E2 studio and compatible debug probes such as the E2 Lite or Segger J-Link.

Is the R5S72642W144FP#U0 pin-compatible with other SH7264 Group members?

Yes, the R5S72642W144FP#U0 shares identical 144-pin LQFP mechanical and electrical pinout with all SH7264 Group variants (e.g., R5S72640, R5S72641, R5S72643), enabling PCB reuse across memory size and feature variants - provided the design accounts for differences in flash/RAM configuration and peripheral enablement in software.

What is the purpose of the quadrature encoder interface on the R5S72642W144FP#U0?

The quadrature encoder interface on the R5S72642W144FP#U0 provides dedicated hardware for decoding A/B/Z phase signals from rotary encoders, supporting 32-bit position counting, index pulse latching, and direction detection without CPU intervention. This enables precise, jitter-free motor position tracking essential for servo and motion control applications.