Renesas R4F24265NFQV

Overview

R4F24265NFQV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, designed for embedded control applications requiring deterministic real-time response, integrated peripheral support, and industrial-grade reliability. It features a 32 MHz max CPU clock, 256 KB on-chip Flash memory, 16 KB RAM, 16-bit TPU with PWM output, SCI serial interface, and WDT with windowed timeout capability.

For engineers reviewing the R4F24265NFQV datasheet, R4F24265NFQV pinout, R4F24265NFQV application, or R4F24265NFQV equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), I/O drive strength (max 20 mA per port), and compliance with industrial safety requirements per Renesas' Standard quality grade classification.

Technical Context

The R4F24265NFQV implements the H8S/2426 core architecture with advanced mode support, 24-bit address space, and Harvard-style memory organization. It integrates a Clock Pulse Generator (CPG) supporting internal oscillator, external crystal, and PLL-based clock synthesis, enabling flexible system timing configurations up to 32 MHz.

Peripheral subsystems include an 8-channel 16-bit Timer Pulse Unit (TPU) with input capture, output compare, and PWM generation; two full-duplex Serial Communication Interfaces (SCI) compliant with UART framing; and a 12-channel 10-bit ADC with sample-and-hold. All peripherals are memory-mapped and accessible via dedicated SFRs with interrupt vectoring.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with R4F24265NFQV, the R4F24264NFQV trades 4 KB RAM for identical functionality in the same package, while the R4F24265NFPV retains full memory and peripheral capability but reduces I/O count and package size - both serve distinct mechanical and memory optimization goals without altering core architecture.

Availability

R4F24265NFQV is available at Aetrix Electronics and suitable for industrial motor control, building automation, factory floor PLC modules, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.

Supply support for R4F24265NFQV 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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8S/2400 Series - including the R4F24265NFQV - was engineered for deterministic real-time embedded control in harsh industrial environments, emphasizing peripheral integration, Flash reliability, and extended temperature operation.

FAQ

What is the maximum operating frequency of the R4F24265NFQV?

The R4F24265NFQV supports a maximum CPU clock frequency of 32 MHz, achieved using the on-chip PLL with external crystal or oscillator input. This frequency enables instruction execution at ≤31.25 ns per cycle and supports real-time control loops with sub-100 μs latency. The R4F24265NFQV's CPG module allows dynamic clock switching between internal RC, external crystal, and PLL modes without system reset.

Does the R4F24265NFQV include on-chip Flash memory, and what is its endurance?

Yes, the R4F24265NFQV integrates 256 KB of on-chip Flash memory organized in 1 KB sectors, rated for ≥10,000 write/erase cycles and data retention exceeding 20 years at 85°C. This Flash supports in-application programming (IAP) and EEPROM emulation, allowing R4F24265NFQV-based systems to store calibration data, configuration parameters, and firmware updates without external nonvolatile memory.

How many I/O pins does the R4F24265NFQV provide, and what are their electrical characteristics?

The R4F24265NFQV offers 85 CMOS-compatible bidirectional I/O pins in its 100-pin LQFP package. Each pin supports programmable pull-up resistors, noise filtering, and high-drive capability up to 20 mA sink/source. I/O voltage tolerance spans 3.0 V to 5.5 V, enabling interoperability with both 3.3 V and 5 V logic families while maintaining industrial-grade ESD immunity per IEC 61000-4-2 Level 3.

What peripheral functions are integrated into the R4F24265NFQV?

The R4F24265NFQV integrates a 12-channel 10-bit ADC, dual SCI UART interfaces, an 8-channel 16-bit Timer Pulse Unit (TPU) with PWM and input capture, a watchdog timer with windowed timeout, and a Clock Pulse Generator (CPG) with PLL. These peripherals are memory-mapped and fully interrupt-capable, allowing R4F24265NFQV to serve as a self-contained controller in motor drives, sensor hubs, and industrial I/O modules.

Is the R4F24265NFQV qualified for industrial temperature operation?

Yes, the R4F24265NFQV is specified for operation across −40°C to +85°C ambient temperature and classified by Renesas as a Standard quality grade device, approved for use in industrial robots, factory automation, test equipment, and building control systems. Its thermal design and process technology ensure stable timing, Flash retention, and I/O performance across this full industrial range without derating.