Renesas R5S726B0D216FP#V0

Overview

R5S726B0D216FP#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 2.0B, USB 2.0 FS, and multiple serial interfaces. It operates at up to 120 MHz with industrial temperature range (−40°C to +85°C) and targets real-time motor control and industrial automation systems.

For engineers reviewing the R5S726B0D216FP#V0 datasheet, R5S726B0D216FP#V0 pinout, R5S726B0D216FP#V0 application, or R5S726B0D216FP#V0 equivalent, key selection criteria include its SH-2A CPU with FPU acceleration, dual CAN controllers with time-triggered capability, 12-bit ADC with 24 channels, and QFP-176 package with 144 user I/O pins - all critical for deterministic embedded control design.

Technical Context

The R5S726B0D216FP#V0 implements the SH-2A CPU core with 5-stage pipeline, IEEE 754-compliant single/double-precision floating-point unit, and tightly coupled memory architecture enabling sub-cycle instruction execution. It integrates a programmable interrupt controller (IPCR), on-chip debug support (JTAG/HSW), and memory protection unit (MPU) with 16 regions.

Its clock system includes PLL with 1–16× multiplication, selectable input sources (crystal, external clock, or internal oscillator), and independent domain clocks for peripherals including CAN, USB, and ADC. The device supports boot from ROM, flash, or external memory via 16-bit data bus and 24-bit address bus.

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 R5S726A0D216FP#V0 and R7FS3A7783A01CFP#AA0, the R5S726B0D216FP#V0 uniquely balances legacy SH-2A deterministic performance, integrated FPU for motor control, and industrial-grade peripheral integration - making it optimal for upgrading existing SH726-based drives without architectural redesign.

Availability

R5S726B0D216FP#V0 is available at Aetrix Electronics and suitable for industrial motor drives, automated test equipment, building automation controllers, and energy monitoring gateways requiring stable component supply across extended product lifecycles.

Supply support for R5S726B0D216FP#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The SH726B Group - including R5S726B0D216FP#V0 - was designed specifically for high-performance real-time embedded control in industrial automation, motion control, and factory equipment where deterministic timing and floating-point math acceleration are essential.

FAQ

What is the maximum operating frequency of the R5S726B0D216FP#V0?

The R5S726B0D216FP#V0 operates at a maximum frequency of 120 MHz, achieved using its on-chip PLL with programmable multiplication ratio (1× to 16×) and support for external crystal or clock input. This frequency enables 196.8 MIPS performance, critical for real-time motor control loops. The R5S726B0D216FP#V0 maintains this speed across its full industrial temperature range (−40°C to +85°C) with appropriate power supply decoupling and thermal management.

Does the R5S726B0D216FP#V0 include a hardware floating-point unit?

Yes, the R5S726B0D216FP#V0 integrates a full IEEE 754-compliant floating-point unit (FPU) supporting both single- and double-precision operations. This FPU is tightly coupled to the SH-2A CPU core and executes floating-point instructions in hardware - eliminating software emulation overhead. The R5S726B0D216FP#V0 uses this capability to accelerate motor control algorithms such as field-oriented control (FOC) and space-vector modulation, reducing computation latency by over 90% compared to integer-only implementations.

How many CAN interfaces does the R5S726B0D216FP#V0 support, and what version?

The R5S726B0D216FP#V0 supports two independent CAN 2.0B controllers, each compliant with ISO 11898-1 and supporting both standard (11-bit) and extended (29-bit) identifier formats. Both controllers include time-triggered communication mode, 32 message objects with configurable acceptance filtering, and automatic retransmission. These features make the R5S726B0D216FP#V0 suitable for distributed real-time control networks in industrial drives and vehicle subsystems where deterministic messaging is required.

What package type and pin count does the R5S726B0D216FP#V0 use?

The R5S726B0D216FP#V0 is housed in a 176-pin LQFP package measuring 24 mm × 24 mm with 0.5 mm pitch. It provides 144 user-configurable I/O pins, including dedicated signals for CAN, USB, SCI, and ADC. The package is RoHS-compliant and rated MSL-3, requiring bake conditioning before reflow if exposed to ambient humidity beyond floor life. This package enables high peripheral density while maintaining compatibility with standard surface-mount assembly processes used in industrial PCB manufacturing.

Is the R5S726B0D216FP#V0 pin-compatible with other SH726 series microcontrollers?

The R5S726B0D216FP#V0 shares the same 176-pin LQFP package and pin assignment with the R5S726A0D216FP#V0, enabling direct PCB footprint compatibility between the SH726A and SH726B groups. However, functional differences exist - notably the presence of the FPU and doubled flash memory in the R5S726B0D216FP#V0 - meaning firmware and power delivery must be validated separately. The R5S726B0D216FP#V0 is not pin-compatible with SH726x variants in smaller packages (e.g., 144-pin or 100-pin variants) due to differing pin mappings and I/O counts.