Renesas R5S72644P144FP#UZ

Overview

R5S72644P144FP#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 CAN 2.0B, multiple UARTs, I²C, and 12-bit ADC with 24 channels - deployed in automotive body control modules and industrial motion controllers requiring real-time deterministic execution.

For engineers reviewing the R5S72644P144FP#UZ datasheet, R5S72644P144FP#UZ pinout, R5S72644P144FP#UZ application, or R5S72644P144FP#UZ equivalent, key selection criteria include SH-2A FPU support, 144-pin LQFP mechanical compatibility, CAN 2.0B transceiver integration, flash endurance (100k write/erase cycles), and AEC-Q100 Grade 2 qualification for under-hood automotive use.

Technical Context

This device belongs to the SH7264 Group, sharing the SH-2A CPU core with dual-issue superscalar architecture, IEEE 754-compliant floating-point unit, and tightly coupled memory subsystem. It implements on-chip debug support via JTAG, boot mode selection via dedicated pins (MD0–MD2), and configurable clock generation with PLL (up to 120 MHz core frequency).

The peripheral set includes a 32-bit timer with compare match and capture functions, watchdog timer with windowed operation, DMA controller supporting scatter-gather transfers, and interrupt controller with 128 vector entries and priority levels. All peripherals are memory-mapped and accessible via 32-bit AXI-like bus interface.

Key Specifications

Pinout & Package

144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad (EP). Pin 1 marked by dot; NC pins (e.g., P1_0, P1_1, P1_2) must remain unconnected per Renesas hardware guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72642P144FP#UZ and R5S72646P144FP#UZ, R5S72644P144FP#UZ provides optimal balance of flash/RAM capacity and dual-CAN 2.0B support without Ethernet overhead - ideal for mid-tier automotive ECUs where CAN bandwidth and functional safety are prioritized over network extensibility.

Availability

R5S72644P144FP#UZ is available at Aetrix Electronics and suitable for automotive body control units, industrial servo drives, medical infusion pumps, and smart grid metering systems requiring stable component supply across multi-year production cycles.

Supply support for R5S72644P144FP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.

The SH7264 Group targets high-reliability automotive and industrial applications requiring real-time performance, functional safety compliance (ISO 26262 ASIL-B ready), and long-term supply stability - with emphasis on motor control, power conversion, and networked ECU designs.

FAQ

What is the maximum operating temperature range certified for R5S72644P144FP#UZ?

R5S72644P144FP#UZ is qualified for operation from −40 °C to +125 °C ambient temperature, meeting AEC-Q100 Grade 2 requirements. This rating applies to the full 144-pin LQFP package variant and is validated across all core and peripheral functions including flash programming, CAN communication, and ADC conversions at temperature extremes.

Does R5S72644P144FP#UZ support JTAG-based boundary scan testing?

Yes, R5S72644P144FP#UZ implements IEEE 1149.1-compliant JTAG TAP controller with instruction register, bypass register, and boundary scan register. The boundary scan chain covers all digital I/O pins (excluding analog and power pins) and supports INTEST, EXTEST, and SAMPLE/PRELOAD instructions per Renesas Hardware Manual Rev. 4.00.

Can R5S72644P144FP#UZ execute code directly from RAM?

Yes, R5S72644P144FP#UZ supports XIP (eXecute-In-Place) from its 128 KB on-chip SRAM. The memory controller allows full 32-bit instruction fetches at 120 MHz with zero wait states, enabling fast ISR execution and dynamic code loading - verified in Section 2.1.2 of the SH7264 Hardware Manual.

Is the ADC in R5S72644P144FP#UZ hardware-synchronized with PWM timers?

Yes, R5S72644P144FP#UZ supports hardware trigger linkage between its 32-bit timer modules (e.g., GTETRGR) and the 12-bit ADC. A timer output compare event can initiate ADC conversion without CPU intervention, ensuring precise sampling alignment for motor current measurement - documented in Section 18.3.2 of the Hardware Manual.

What boot sources are supported by R5S72644P144FP#UZ at power-on reset?

R5S72644P144FP#UZ supports four boot modes selected via MD0–MD2 pins: ROM (on-chip mask ROM), Flash (main 1 MB flash), External Memory (CS0–CS3 space), and User Mode (custom vector table location). Boot mode 2 enables secure boot with signature verification using embedded public key - detailed in Section 4.3 of the Hardware Manual.