Renesas R5S726B1D216FP#V0

Overview

R5S726B1D216FP#V0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring integrated FPU, 2 MB flash memory, 192 KB RAM, and support for CAN, USB, and multiple serial interfaces. It operates at up to 120 MHz, targets automotive body control and industrial automation applications, and includes hardware encryption acceleration and dual-bank flash for safe firmware updates.

For engineers reviewing the R5S726B1D216FP#V0 datasheet, R5S726B1D216FP#V0 pinout, R5S726B1D216FP#V0 application, or R5S726B1D216FP#V0 equivalent, key selection criteria include its SH-2A FPU-enabled instruction set, 176-pin LQFP package with configurable I/O, automotive-grade temperature range (−40°C to +125°C), and integrated CAN FD transceivers compliant with ISO 11898-1:2015.

Technical Context

The R5S726B1D216FP#V0 implements the SH-2A CPU core with IEEE 754-compliant single/double-precision floating-point unit, enabling deterministic real-time math operations in motor control and sensor fusion. Its clock system supports PLL-based frequency synthesis from 1–20 MHz crystal inputs, delivering stable 120 MHz core clock with programmable dividers for peripheral domains.

On-chip peripherals include three CAN FD controllers (ISO 11898-1:2015 compliant), one USB 2.0 FS host/device controller, eight 16-bit timers with PWM output, and a 12-bit ADC with 24 channels and hardware-triggered sampling. Memory protection unit (MPU) enforces privilege-level access control across flash, RAM, and peripheral address spaces.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S726B1D216FP#V0, the R5S726B2D216FP#V0 offers scalable memory for future firmware growth without layout change, while the R5F72664D216FP#V0 reduces BOM cost where FPU and CAN FD are unnecessary - enabling tiered product variants from a single PCB design.

Availability

R5S726B1D216FP#V0 is available at Aetrix Electronics and suitable for automotive body control modules, industrial servo drives, smart grid gateways, and medical imaging subsystems requiring stable component supply and long-term lifecycle assurance.

Supply support for R5S726B1D216FP#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 global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The SH726B Group, including R5S726B1D216FP#V0, was designed for high-integrity real-time control in automotive body electronics and industrial automation-emphasizing functional safety readiness, deterministic timing, and integrated communication peripherals.

FAQ

What is the maximum operating frequency of the R5S726B1D216FP#V0?

The R5S726B1D216FP#V0 operates at a maximum frequency of 120 MHz, achieved via its on-chip PLL with programmable dividers. This clock speed is sustained across the full −40°C to +125°C temperature range and 2.7 V to 5.5 V supply voltage, enabling deterministic execution of real-time control algorithms. The R5S726B1D216FP#V0's SH-2A core delivers 1.4 DMIPS/MHz, resulting in ~168 DMIPS performance at full speed.

Does the R5S726B1D216FP#V0 support CAN FD, and what standards does it comply with?

Yes, the R5S726B1D216FP#V0 integrates three independent CAN FD controllers compliant with ISO 11898-1:2015. Each controller supports data rates up to 5 Mbps, payloads up to 64 bytes, and seamless fallback to classical CAN 2.0B mode. The R5S726B1D216FP#V0's CAN FD implementation includes hardware message filtering, transmit/receive FIFOs, and error counters accessible via dedicated registers - eliminating software overhead in high-throughput automotive networks.

What memory configuration does the R5S726B1D216FP#V0 include, and how is flash organized?

The R5S726B1D216FP#V0 features 2 MB of on-chip flash memory organized in dual banks (Bank A and Bank B), each 1 MB in size, plus 192 KB of SRAM - including 32 KB of tightly coupled memory (TCM). Flash supports background read-while-write (BWP), sector erase, and secure boot verification. The R5S726B1D216FP#V0's dual-bank architecture allows one bank to execute code while the other is being reprogrammed, enabling safe over-the-air updates without system interruption.

Is the R5S726B1D216FP#V0 qualified for automotive applications, and what temperature grade does it meet?

Yes, the R5S726B1D216FP#V0 is qualified for automotive applications under Renesas' "High Quality" grade, meeting AEC-Q100 Grade 1 requirements (−40°C to +125°C ambient operating temperature). It is intended for use in body control modules, gateway ECUs, and chassis subsystems - excluding safety-critical airbag or brake control. The R5S726B1D216FP#V0 includes built-in self-test (BIST) for flash and RAM, lockstep-capable peripherals, and failure-in-time (FIT) data published in Renesas reliability reports.

What development tools and software support are available for the R5S726B1D216FP#V0?

Renesas provides comprehensive support for the R5S726B1D216FP#V0, including the e2 studio IDE with GCC-based toolchain, CS+ compiler suite, and APX debugger probe. Middleware includes FSP (Flexible Software Package) v4.x with HAL drivers, CAN FD stack (CANopen FD, J1939), USB device/host classes, and cryptographic libraries leveraging the on-chip accelerator. The R5S726B1D216FP#V0 is supported by the YRDKSH726B evaluation kit, which includes debugging headers, CAN FD transceivers, and expansion connectors for rapid prototyping.