Renesas R5S72621P144FP#UZ

Overview

R5S72621P144FP#UZ from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring integrated FPU, 1 MB flash memory, 128 KB RAM, and 144-pin LQFP package. It supports real-time motor control, industrial PLCs, and embedded HMI applications with 12-bit ADC (16 channels), CAN 2.0B interface, and dual 32-bit timer units.

For engineers reviewing the R5S72621P144FP#UZ datasheet, R5S72621P144FP#UZ pinout, R5S72621P144FP#UZ application, or R5S72621P144FP#UZ equivalent, key selection criteria include SH-2A instruction set compatibility, on-chip FPU support for floating-point math, 144-pin LQFP mechanical footprint, and CAN 2.0B + 12-bit ADC integration for deterministic control loops.

Technical Context

The R5S72621P144FP#UZ implements the SH-2A CPU core with 5-stage pipeline, IEEE 754-compliant single-precision FPU, and memory protection unit (MPU). It executes instructions at up to 120 MHz with 190 MIPS performance and includes dedicated peripheral bus arbitration for concurrent access to flash, RAM, and peripherals.

Hardware features include dual CAN controllers with message RAM, 16-channel 12-bit ADC with hardware trigger synchronization, and programmable watchdog timer with windowed mode. Clock generation supports external crystal (4–20 MHz), PLL multiplication (up to 4×), and multiple low-power stop modes with wake-up via GPIO or peripheral interrupt.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EPAD) connected to VSS. Pin 1 marked by dot; NC pins are internally unconnected and must remain unconnected per Renesas design guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72621P144FP#UZ, R5S72622P144FP#UZ offers doubled memory resources without altering timing or peripheral behavior, while R5S72641P144FP#UZ introduces new silicon-level IP (Ethernet MAC) that changes PCB layout, power delivery, and driver stack requirements.

Availability

R5S72621P144FP#UZ is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and embedded HMI terminals requiring stable component supply across long-lifecycle production programs.

Supply support for R5S72621P144FP#UZ 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 SH7260 Series targets high-performance real-time embedded control applications, with the R5S72621P144FP#UZ optimized for deterministic motor control, industrial automation, and human-machine interface systems requiring FPU-accelerated math and dual-CAN connectivity.

FAQ

What is the maximum operating frequency of the R5S72621P144FP#UZ?

The R5S72621P144FP#UZ operates at a maximum frequency of 120 MHz, delivering 190 MIPS performance. This speed is achieved using the on-chip PLL with external crystal input (4–20 MHz), and it is validated across the full industrial temperature range (−40°C to +85°C). The R5S72621P144FP#UZ maintains timing compliance under worst-case voltage (3.3 V ±10%) and temperature conditions per Renesas Electrical Characteristics specification R01UH0134EJ0400.

Does the R5S72621P144FP#UZ include an integrated floating-point unit?

Yes, the R5S72621P144FP#UZ integrates a hardware IEEE 754-compliant single-precision floating-point unit (FPU) directly into the SH-2A CPU pipeline. This FPU accelerates trigonometric, exponential, and division operations without software library overhead. The R5S72621P144FP#UZ uses the same FPSCR and FPUL register set defined in the SH-2A FPU Software Manual, ensuring binary compatibility with existing SH-2A FPU codebases.

What package type and pin count does the R5S72621P144FP#UZ use?

The R5S72621P144FP#UZ uses a 144-pin LQFP package measuring 20 mm × 20 mm with 0.5 mm lead pitch and an exposed thermal pad (EPAD) connected to VSS. Pin assignments match the SH7262 Group pinout defined in Section 1.4 of the R01UH0134EJ0400 Hardware Manual. All NC pins are internally unconnected and must remain unconnected in PCB layout per Renesas General Precautions.

How many CAN interfaces does the R5S72621P144FP#UZ support?

The R5S72621P144FP#UZ supports two independent CAN 2.0B controllers (CAN0 and CAN1), each with dedicated message RAM, acceptance filtering, and bit-rate configuration registers. Both controllers operate concurrently at bit rates up to 1 Mbps and support self-test modes. The R5S72621P144FP#UZ does not integrate physical transceivers - external CAN transceivers must be used on CAN0TX/CAN0RX and CAN1TX/CAN1RX signal pairs.

Is the R5S72621P144FP#UZ qualified for automotive applications?

No, the R5S72621P144FP#UZ is classified as a "Standard" quality grade device per Renesas documentation, intended for industrial, office, and consumer equipment-not transportation or safety-critical systems. It is rated for −40°C to +85°C operation and does not meet AEC-Q100 requirements. For automotive use, Renesas recommends the RH850 family; the R5S72621P144FP#UZ must not be deployed in applications posing direct threat to human life or safety-critical infrastructure.