Renesas R4F24249DFPV

Overview

R4F24249DFPV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2424 Group, featuring 256 KB on-chip Flash memory, 16 KB RAM, and integrated peripherals including TPU, SCI, WDT, and CPG. It operates at up to 33 MHz, supports 5 V operation, and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the R4F24249DFPV datasheet, R4F24249DFPV pinout, R4F24249DFPV application, or R4F24249DFPV equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compatibility with H8S/2400-series development tools and peripheral driver libraries.

Technical Context

The R4F24249DFPV implements the H8S/2400 CPU core with 24-bit address space, supporting both Normal and Advanced operating modes. It integrates a programmable clock pulse generator (CPG) with PLL for flexible system clock derivation, and features dual 16-bit timer pulse units (TPU) with input capture, output compare, and PWM generation capability.

Its interrupt controller supports 128 vector entries with priority-based nesting and software standby release IRQs. Memory protection is enforced via an on-chip bus controller (BSC) with configurable wait-state insertion and access privilege controls for secure code execution.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24249DFPV, R4F24247DFPV offers cost reduction at the expense of memory headroom, while R4F24269DFPV extends peripheral count for complex protocol aggregation-neither is pin-compatible without PCB revision due to differing peripheral pin mappings.

Availability

R4F24249DFPV is available at Aetrix Electronics and suitable for industrial automation, energy metering, and factory HMI applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized Renesas distribution channels.

Supply support for R4F24249DFPV 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 industrial, automotive, and infrastructure markets.

The H8S/2400 Series-including R4F24249DFPV-is designed for deterministic real-time embedded control in harsh industrial environments, emphasizing reliability, peripheral integration, and toolchain continuity across legacy H8 product families.

FAQ

What is the maximum operating frequency of the R4F24249DFPV?

The R4F24249DFPV supports a maximum system clock frequency of 33 MHz when using the on-chip PLL with an external crystal or resonator. This frequency is achievable across the full −40°C to +85°C operating temperature range and 4.5 V to 5.5 V supply voltage, as verified in Renesas' Electrical Characteristics section of the H8S/2424 Group Hardware User's Manual (Rev.5.00). The R4F24249DFPV achieves consistent 30.3 ns instruction cycle timing under these conditions.

Does the R4F24249DFPV include a hardware watchdog timer?

Yes, the R4F24249DFPV integrates a dedicated watchdog timer (WDT) with windowed operation mode, timeout period programmability, and independent clock source (on-chip low-speed oscillator). The WDT can generate either a reset or interrupt upon timeout, and its clear register (WDRST) is mapped to Port B pin PB15. This functionality is documented in Section 13 of the H8S/2424 Group User's Manual and applies specifically to the R4F24249DFPV variant.

Is the R4F24249DFPV pin-compatible with other H8S/2424 Group MCUs?

No, the R4F24249DFPV is not universally pin-compatible across all H8S/2424 Group variants. While it shares the same 80-pin LQFP package with R4F24247DFPV, pin functions differ for certain peripherals (e.g., TPU channel assignments and SCI signal routing). Pin compatibility is confirmed only with R4F24247DFPV per Renesas' Pin Assignment Tables (Section 1.4.1), but not with R4F2424 or R4S2424 derivatives due to differing peripheral enable configurations.

What development tools support the R4F24249DFPV?

The R4F24249DFPV is supported by Renesas' High-performance Embedded Workshop (HEW) IDE with C compiler (H8/300H Family), E8/E8a in-circuit emulators, and the Renesas Flash Programmer. Third-party tools including IAR Embedded Workbench for H8 and GNU-based toolchains with H8S target support also provide full debugging and Flash programming capability for the R4F24249DFPV.

What is the Flash memory endurance specification for the R4F24249DFPV?

The on-chip Flash memory in the R4F24249DFPV is rated for a minimum of 10,000 write/erase cycles per sector, as specified in Renesas' H8S/2424 Group datasheet and confirmed in the "Electrical Characteristics" chapter of the Hardware User's Manual (Rev.5.00). This endurance applies under standard operating conditions (VCC = 5.0 V ±10%, TA = 25°C); actual cycle life may vary with temperature, voltage, and erase block size usage patterns.