Renesas R5S72681W266FP#V0

Overview

R5S72681W266FP#V0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring 266 MHz maximum CPU clock, 1 MB on-chip Flash memory, and integrated video display controller supporting horizontal noise reduction and matrix-based brightness/gain adjustment. It targets automotive instrument clusters and industrial HMI systems requiring real-time graphics processing and deterministic interrupt response.

For engineers reviewing the R5S72681W266FP#V0 datasheet, R5S72681W266FP#V0 pinout, R5S72681W266FP#V0 application, or R5S72681W266FP#V0 equivalent, key selection criteria include its 25-interrupt-source priority controller, complementary PWM mode with programmable dead time, USB 2.0 host/function capability, and QFP-256 package with 16-bit external bus interface for legacy display driver integration.

Technical Context

The R5S72681W266FP#V0 implements the SH-2A superscalar RISC architecture with dual-issue pipeline, enabling up to 266 MIPS at 266 MHz. It integrates a dedicated video display controller (VDC4) with hardware-accelerated horizontal noise reduction, brightness adjustment, and gain control via 3×3 matrix operation - all operating independently of the CPU core.

Its peripheral set includes a multi-function timer pulse unit (TPU) supporting complementary PWM generation with TGRA_3/TCDR-synchronized cycle control and configurable dead time insertion, plus a USB 2.0 module with internal PHY and support for both host and function roles using shared pins REFRIN and USBAPVss.

Key Specifications

Pinout & Package

Package: 256-pin plastic quad flat pack (QFP), 28 mm × 28 mm, 0.5 mm pitch, lead-free (Pb-free) and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72681W266FP#V0, the R5F72681W266FP#V0 offers higher reliability for extreme environments but at increased cost, while the R5S72691W266FP#V0 expands connectivity at the expense of slightly larger PCB footprint and higher power consumption.

Availability

R5S72681W266FP#V0 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMIs, head-up displays, and medical diagnostic panels requiring stable component supply and long-term lifecycle support.

Supply support for R5S72681W266FP#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The SH7268 Group is designed for high-performance automotive display and control applications, integrating graphics acceleration, real-time control, and functional safety features into a single chip.

FAQ

What is the maximum operating frequency of the R5S72681W266FP#V0?

The R5S72681W266FP#V0 operates at a maximum CPU clock frequency of 266 MHz, delivering up to 266 MIPS of real-time processing performance. This frequency is achieved using the SH-2A superscalar RISC core with dual-issue pipeline architecture. The R5S72681W266FP#V0 maintains timing integrity across its integrated peripherals-including the VDC4 video engine and complementary PWM units-at this rated speed under specified voltage and temperature conditions.

Does the R5S72681W266FP#V0 support USB device and host modes simultaneously?

No, the R5S72681W266FP#V0 supports USB 2.0 host or function mode, but not both simultaneously. Its USB module uses a single PHY with shared pins (REFRIN and USBAPVss), and mode selection is configured at initialization via the USB configuration registers. The R5S72681W266FP#V0 must be statically assigned to either host or device role during system boot; dynamic switching is not supported in hardware.

What video processing capabilities does the R5S72681W266FP#V0 include?

The R5S72681W266FP#V0 integrates the VDC4 video display controller with hardware-accelerated horizontal noise reduction (NR), brightness adjustment, and gain control using a configurable 3×3 matrix operation. These functions operate independently of the CPU core and reduce processing load by up to 42% compared to software-based implementations. The R5S72681W266FP#V0 does not support vertical NR or chroma keying.

How many interrupt sources does the R5S72681W266FP#V0 support?

The R5S72681W266FP#V0 supports 25 configurable interrupt sources with programmable priority levels. Each source maps to a dedicated vector and can be individually enabled or masked. Worst-case interrupt latency is guaranteed at ≤8.5 µs under maximum clock conditions, making the R5S72681W266FP#V0 suitable for time-critical automotive and medical applications requiring deterministic response.

Is the R5S72681W266FP#V0 qualified for automotive applications?

Yes, the R5S72681W266FP#V0 is manufactured in Renesas' "High Quality" grade and is intended for transportation equipment including automobiles, trains, and ships. It meets AEC-Q100 stress test requirements for temperature cycling, humidity, and mechanical shock. However, final qualification for specific automotive use cases requires validation against the full ISO 26262 ASIL-B functional safety requirements, which must be performed at the system level.