Renesas R4F24269NFQV

Overview

R4F24269NFQV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, designed for embedded control in industrial and automotive systems. It features 256 KB on-chip flash memory, 16 KB RAM, a 32 MHz max CPU clock, integrated TPU (16-bit timer pulse unit), SCI (serial communication interface), and WDT (watchdog timer). It operates across –40°C to +85°C and supports multiple low-power modes.

For engineers reviewing the R4F24269NFQV datasheet, R4F24269NFQV pinout, R4F24269NFQV application, or R4F24269NFQV equivalent, key selection criteria include flash endurance (10,000 write/erase cycles), interrupt latency (≤1.5 µs), peripheral integration (TPU ×2, SCI ×2, I²C-compatible bus controller), and qualification for industrial-grade applications per Renesas Standard quality grade.

Technical Context

The R4F24269NFQV implements the H8S/2426 core architecture with advanced mode support, 24-bit address space, and Harvard-style memory organization. It integrates a programmable clock pulse generator (CPG) supporting internal PLL, external crystal, or ceramic resonator inputs, and provides configurable wait-state control for flash and RAM access timing.

Its interrupt controller supports 128 vectors with priority levels (IPRA–IPRN), nested interrupts, and software standby release capability. Peripheral functions are mapped via dedicated SFRs and share common bus arbitration through the on-chip bus controller (BSC), enabling deterministic real-time response in multi-peripheral operation.

Key Specifications

Pinout & Package

The R4F24269NFQV is housed in a 100-pin LQFP package with exposed thermal pad (QFP-100-0.50-14x14-E), optimized for thermal dissipation in continuous industrial operation. Pin assignments support multiplexed I/O, including dedicated reset, clock input, and interrupt request lines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24269NFQV, the R5F24269NFPV offers identical electrical and functional behavior but requires PCB requalification due to different thermal pad soldering requirements, while the R4F24267NFQV trades memory capacity for lower unit cost without altering peripheral availability or timing performance.

Availability

R4F24269NFQV is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and factory automation I/O terminals requiring stable component supply and long-term lifecycle support.

Supply support for R4F24269NFQV 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, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8S/2400 Series-including the R4F24269NFQV-is designed for deterministic real-time control in resource-constrained embedded systems where reliability, peripheral integration, and long-term availability outweigh raw processing throughput.

FAQ

What is the maximum operating frequency of the R4F24269NFQV?

The R4F24269NFQV supports a maximum CPU clock frequency of 32 MHz, achieved using the on-chip PLL with an external 4–8 MHz crystal or ceramic resonator. This frequency enables instruction execution at ≤31.25 ns per cycle and meets real-time deadlines in motor control and industrial I/O applications. The R4F24269NFQV's CPG module allows dynamic clock scaling to reduce power during idle periods without compromising interrupt response.

Does the R4F24269NFQV support LIN bus communication?

Yes, the R4F24269NFQV supports LIN 2.0 physical layer communication through its SCI peripheral when configured in lin-mode. This mode provides automatic sync field detection, break field generation, and configurable baud rate tolerance (±15%), eliminating the need for an external LIN transceiver in simple slave-node applications. The R4F24269NFQV's integrated functionality reduces system cost and board space compared to discrete UART + transceiver solutions.

What is the flash memory endurance specification for the R4F24269NFQV?

The R4F24269NFQV specifies 10,000 write/erase cycles for its 256 KB on-chip flash memory, with data retention guaranteed for 20 years at +85°C. This endurance supports robust firmware update mechanisms and EEPROM emulation routines. When using the R4F24269NFQV in field-upgradable devices, wear leveling across designated flash sectors ensures longevity beyond typical product lifecycles.

Is the R4F24269NFQV qualified for automotive applications?

The R4F24269NFQV is classified as a Renesas Standard-grade device, intended for industrial applications such as factory automation and office equipment-not automotive safety-critical systems. While it operates across –40°C to +85°C and meets AEC-Q100 stress test recommendations in some configurations, it lacks formal AEC-Q100 Grade 2 or Grade 1 qualification. For automotive use, the R4F24269NFQV must undergo customer-specific validation per ISO 26262 ASIL-B requirements.

How does the R4F24269NFQV handle power-on reset and brown-out conditions?

The R4F24269NFQV incorporates an on-chip power-on reset (POR) circuit that asserts reset until VCC reaches 2.7 V and stabilizes for ≥100 µs. It also includes a voltage monitor that triggers reset if VCC drops below 2.5 V (typical), preventing erratic operation during brown-out. These features ensure deterministic startup and safe shutdown behavior in the R4F24269NFQV without requiring external reset ICs in most industrial designs.