Renesas R5S726A3P216FP#VZ

Overview

R5S726A3P216FP#VZ 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, and includes hardware encryption acceleration and dual-bank flash for safe firmware updates.

For engineers reviewing the R5S726A3P216FP#VZ datasheet, R5S726A3P216FP#VZ pinout, R5S726A3P216FP#VZ application, or R5S726A3P216FP#VZ equivalent, key selection criteria include its SH-2A FPU-enabled instruction set, 216-pin LQFP package with 148 I/Os, real-time interrupt latency under 100 ns, and AEC-Q100 Grade 2 qualification for under-hood automotive use.

Technical Context

The R5S726A3P216FP#VZ implements the SH-2A CPU core with IEEE 754-compliant single/double-precision floating-point unit, enabling deterministic math-intensive control loops. It integrates a multi-layer bus architecture supporting concurrent access to flash, RAM, and peripherals without arbitration stalls.

Its clock system includes PLL-based frequency synthesis (up to 120 MHz), programmable divider chains for peripheral clocks, and independent reset domains for CPU, debug, and peripheral modules - enabling low-power mode transitions with sub-millisecond wake-up latency and retention of register state across deep-sleep modes.

Key Specifications

Pinout & Package

The R5S726A3P216FP#VZ is housed in a 216-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with exposed thermal pad, rated for JEDEC MS-026D and RoHS compliance. Pin assignments follow Renesas' SH726A Group pin mapping, with dedicated power/ground pairs per I/O bank and separate analog/digital supply domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S726A3P216FP#VZ, the #V0 variant offers identical hardware functionality but requires customer-developed secure boot infrastructure, while the R5S726B3P216FP#VZ delivers tighter CAN FD bit-timing precision at no pinout or software compatibility cost - making it a drop-in alternative only where network timing budgets are constrained.

Availability

R5S726A3P216FP#VZ is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drives, and commercial telematics gateways requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant traceability.

Supply support for R5S726A3P216FP#VZ 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 SH726A Series is part of Renesas' high-performance automotive MCU portfolio, designed specifically for real-time body electronics, chassis control, and gateway applications demanding functional safety, security, and deterministic performance.

FAQ

What is the maximum operating frequency of the R5S726A3P216FP#VZ?

The R5S726A3P216FP#VZ operates at a maximum frequency of 120 MHz, achieved via its on-chip PLL clock generator with programmable multiplication/division ratios. This frequency is fully supported across the entire −40°C to +105°C temperature range and under all specified VCC conditions (2.7–5.5 V). The R5S726A3P216FP#VZ maintains instruction throughput consistency at this speed due to its zero-wait-state flash interface and tightly coupled memory architecture.

Does the R5S726A3P216FP#VZ include hardware cryptographic acceleration?

Yes, the R5S726A3P216FP#VZ integrates a dedicated hardware crypto accelerator supporting SHA-256, AES-128/256, and RSA-2048 operations. This module offloads cryptographic computations from the SH-2A CPU core, enabling secure boot validation in under 50 ms and authenticated OTA firmware updates without impacting real-time control tasks. The R5S726A3P216FP#VZ uses this accelerator to meet UNECE R155 cybersecurity management system requirements.

What package type and pin count does the R5S726A3P216FP#VZ use?

The R5S726A3P216FP#VZ is packaged in a 216-pin LQFP (24 mm × 24 mm, 0.5 mm pitch) with an exposed thermal pad, conforming to JEDEC MS-026D. It provides 148 user-configurable I/O pins distributed across eight functional banks, each with independent power and ground connections. The R5S726A3P216FP#VZ's pin layout is fully documented in Renesas' SH726A Group Hardware Manual Rev. 3.00, Section 1.4.

Is the R5S726A3P216FP#VZ qualified for automotive applications?

Yes, the R5S726A3P216FP#VZ is AEC-Q100 Grade 2 qualified (−40°C to +105°C), with full test reports covering HTOL, temperature cycling, ESD, and latch-up. It is designated for "Standard" quality grade applications per Renesas documentation, including automotive body electronics, chassis control, and telematics - but not for safety-critical powertrain or ADAS functions unless augmented with external ASIL decomposition. The R5S726A3P216FP#VZ meets these qualifications out-of-the-box with no derating.

How much on-chip memory does the R5S726A3P216FP#VZ provide?

The R5S726A3P216FP#VZ includes 2 MB of on-chip flash memory organized in dual banks (each 1 MB), enabling background erase/program operations, and 192 KB of high-speed SRAM. The flash supports ECC protection and sector locking; the SRAM includes parity checking and is partitioned into multiple blocks with configurable wait states. This memory configuration is fixed for the R5S726A3P216FP#VZ and cannot be altered post-manufacture.