Renesas R5S72671P144FP#VZ

Overview

R5S72671P144FP#VZ from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring integrated FPU, 1 MB on-chip Flash memory, 128 KB RAM, and support for CAN 2.0B, USB 2.0 FS, and multiple serial interfaces. It operates at up to 120 MHz and targets real-time motor control and industrial automation systems requiring deterministic timing and floating-point computation.

For engineers reviewing the R5S72671P144FP#VZ datasheet, R5S72671P144FP#VZ pinout, R5S72671P144FP#VZ application, or R5S72671P144FP#VZ equivalent, key selection criteria include its SH-2A CPU with FPU, 144-pin LQFP package, 120 MHz max clock, CAN/USB peripheral integration, and industrial-grade temperature range (−40°C to +85°C).

Technical Context

The R5S72671P144FP#VZ implements the SH-2A superscalar RISC architecture with dual-issue capability, 32-bit integer and IEEE 754-compliant single/double-precision FPU, and tightly coupled memory subsystem. It includes a 16-level priority interrupt controller, on-chip debug support via JTAG, and configurable clock generation with PLL (×1–×8) and fractional divider.

Peripheral integration includes three 32-bit timer units (with PWM output), 12-bit ADC (16-channel, 1 μs conversion), 2-channel CAN controllers, full-speed USB 2.0 transceiver with internal PHY, and six serial interface modules (SCI, RSPI, I²C). All peripherals are memory-mapped and accessible via unified address space.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5S72671P144FP#VZ, the R5S72661P144FP#VZ offers reduced memory and peripheral count at lower cost but lacks USB and second CAN; the R7FS3A7793FP#AA0 provides modern Arm architecture and CAN FD but requires full firmware rework and new toolchain adoption.

Availability

R5S72671P144FP#VZ is available at Aetrix Electronics and suitable for industrial motor control, automated test equipment, building automation gateways, and factory floor HMI controllers requiring stable component supply across multi-year production cycles.

Supply support for R5S72671P144FP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power management, and SoC solutions for automotive, industrial, and enterprise markets.

The SH7267 Group-including R5S72671P144FP#VZ-is designed for deterministic real-time control in industrial automation, motor drives, and measurement equipment where SH-2A performance, FPU capability, and peripheral integration reduce system BOM and design complexity.

FAQ

What is the maximum operating frequency of the R5S72671P144FP#VZ?

The R5S72671P144FP#VZ operates at a maximum CPU clock frequency of 120 MHz, achieved using the on-chip PLL with programmable multiplication factor (×1 to ×8) and fractional divider. This frequency applies to the SH-2A core, FPU, and most peripheral modules; certain analog blocks (e.g., ADC) have independent clock dividers to maintain accuracy at high core speeds. The 120 MHz rating is guaranteed across the full −40°C to +85°C industrial temperature range.

Does the R5S72671P144FP#VZ include an integrated USB physical layer?

Yes, the R5S72671P144FP#VZ integrates a full-speed USB 2.0 transceiver with on-die PHY, including differential drivers, receivers, and 1.5 kΩ pull-up resistor on the USB_DP line. No external USB PHY or termination components are required for basic device enumeration and communication. The USB module supports control, interrupt, bulk, and isochronous transfer types with dedicated endpoint buffers and DMA support.

How much on-chip Flash and RAM does the R5S72671P144FP#VZ provide?

The R5S72671P144FP#VZ includes 1 MB of on-chip Flash memory with built-in ECC for error detection and correction, and 128 KB of SRAM with parity checking. Flash is organized in 1 KB sectors and supports read-while-write operation. SRAM is split into multiple banks with independent wait-state configuration, enabling optimized access timing for critical real-time data structures and stack usage.

Is the R5S72671P144FP#VZ pin-compatible with other SH7267 family members?

Yes, the R5S72671P144FP#VZ is pin-compatible with all 144-pin LQFP variants in the SH7267 Group, including R5S72670P144FP#VZ and R5S72672P144FP#VZ. Pin assignments for power, ground, clocks, reset, and major peripherals (CAN, USB, ADC, SCI) are identical across these variants. Differences are limited to internal memory size, peripheral enablement flags, and factory-programmed options-not reflected in pinout or electrical behavior.

What debug interface does the R5S72671P144FP#VZ support?

The R5S72671P144FP#VZ supports JTAG-based on-chip debugging via the standard 14-pin ARM JTAG connector (IEEE 1149.1). It includes hardware breakpoints, watchpoints, real-time trace buffer, and full visibility into CPU registers, FPU state, and memory-mapped peripherals. Renesas E2 emulator and CS+ IDE provide full debug integration, including flash programming, live variable inspection, and instruction-level stepping-even during FPU-intensive execution.