Renesas R5F72374ADFP#V0

Overview

R5F72374ADFP#V0 from Renesas Electronics is a 32-bit SuperH RISC microcontroller in the SH7237 Group, featuring a 100 MHz CPU core, 512 KB on-chip Flash memory, and integrated peripherals including 12-bit ADC, SCI, I²C, and PWM timers. It operates from a 3.0–3.6 V supply and targets industrial motor control and embedded HMI applications requiring deterministic real-time response.

For engineers reviewing the R5F72374ADFP#V0 datasheet, R5F72374ADFP#V0 pinout, R5F72374ADFP#V0 application, or R5F72374ADFP#V0 equivalent, key selection criteria include its 100-pin LQFP package, 100 MHz max clock frequency, Flash write/erase endurance (10,000 cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade reliability standards.

Technical Context

The R5F72374ADFP#V0 implements the SH-2A CPU core with 32-bit data path, 16×32-bit general-purpose registers, and hardware FPU support for fixed-point and integer arithmetic. It integrates a Clock Pulse Generator (CPG) supporting PLL-based clock synthesis, multiple low-power modes (HALT, STOP, and SLEEP), and a Data Transfer Controller (DTC) enabling autonomous peripheral-to-memory transfers without CPU intervention.

Its system architecture includes a 32-bit internal bus, on-chip RAM (64 KB), memory protection unit (MPU), and interrupt controller (INTC) with 128 vector sources and priority-level programmability. Peripheral integration covers 12-channel 12-bit ADC with sample-and-hold, 4-channel 16-bit MTU timers with complementary PWM output, and dual SCI interfaces supporting asynchronous and LIN protocol modes.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad for improved heat dissipation in motor drive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72374ADFP#V0, the R5F72375ADFP#V0 offers scalable memory while preserving full hardware compatibility, whereas the R5F566TEADFP#30 shifts focus toward networked automation at the cost of motor-control-specific peripherals and software migration effort.

Availability

R5F72374ADFP#V0 is available at Aetrix Electronics and suitable for industrial motor control, embedded HMI, and factory automation sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for R5F72374ADFP#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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7237 Group, including R5F72374ADFP#V0, was designed specifically for cost-sensitive, high-reliability industrial control applications demanding real-time determinism, integrated analog/motor peripherals, and long-term supply assurance.

FAQ

What is the maximum operating frequency of the R5F72374ADFP#V0?

The R5F72374ADFP#V0 operates at a maximum CPU frequency of 100 MHz using its on-chip PLL clock generator. This frequency is achievable with a 4–20 MHz external crystal or clock source applied to XTAL/EXTAL pins, and requires proper configuration of the Frequency Control Register (FRQCR) and stable power supply decoupling per Renesas Hardware Manual Section 4.3. The R5F72374ADFP#V0 maintains timing compliance across its full industrial temperature range (−40°C to +85°C) at this speed.

Does the R5F72374ADFP#V0 support in-circuit debugging without halting program execution?

Yes, the R5F72374ADFP#V0 supports non-intrusive debugging via its dedicated JTAG interface compliant with IEEE 1149.1. Using Renesas E2 emulator or compatible tools, engineers can perform real-time instruction trace, variable watch, and breakpoint setting without stopping the CPU - critical for validating timing-critical motor control loops. This capability is enabled by the on-chip debug module documented in Section 22 of the R5F72374ADFP#V0 User's Manual: Hardware.

What is the Flash endurance specification for the R5F72374ADFP#V0?

The R5F72374ADFP#V0 specifies 10,000 erase/write cycles for its 512 KB on-chip Flash memory, validated under standard industrial operating conditions (3.3 V, 25°C). This endurance supports field firmware updates over a 10-year product lifetime assuming ≤1 update per month. Wear leveling must be implemented in application firmware, as the R5F72374ADFP#V0 does not include hardware wear leveling. Full details are in the R5F72374ADFP#V0 Data Sheet Section 5.2.

Can the R5F72374ADFP#V0 generate complementary PWM signals with programmable dead time?

Yes, the R5F72374ADFP#V0 integrates four 16-bit Multi-Function Timer Units (MTUs) that support complementary PWM output with independently programmable dead-time insertion (1–64 clock cycles). Each MTU channel (e.g., MTIOA0/MTIOB0) can drive high-side and low-side gate drivers in half-bridge topologies. Configuration is done via MTU register sets (MTERx, MDTEx) as defined in Section 14 of the R5F72374ADFP#V0 User's Manual: Hardware.

Is the R5F72374ADFP#V0 qualified for industrial temperature operation?

Yes, the R5F72374ADFP#V0 is rated for industrial temperature operation from −40°C to +85°C ambient, verified per Renesas quality grade "Standard" classification (see Notice #7 in User's Manual). It meets JEDEC JESD22-A108 reliability testing for temperature cycling and high-temperature operating life. No derating is required within this range, and all electrical characteristics-including ADC accuracy, PWM jitter, and Flash access time-are guaranteed across the full span.