Renesas R4F24249NFPV

Overview

R4F24249NFPV 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 R4F24249NFPV datasheet, R4F24249NFPV pinout, R4F24249NFPV application, or R4F24249NFPV equivalent, this page provides verified technical context, package mapping, functional pin roles, key timing and memory parameters, and validated alternative parts for design continuity and sourcing resilience.

Technical Context

The R4F24249NFPV implements the H8S/2400 Series CPU core with 16-bit data bus, 24-bit address space, and advanced mode support for extended addressing. It integrates a clock pulse generator (CPG) supporting internal oscillators and external crystal inputs, plus a watchdog timer (WDT) with independent reset capability.

Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with 8 channels, two Serial Communication Interfaces (SCI) compatible with UART protocols, and a Bus State Controller (BSC) enabling flexible external memory expansion up to 16 MB. All peripherals are memory-mapped and accessible via standard load/store instructions.

Key Specifications

Pinout & Package

The R4F24249NFPV is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, optimized for industrial PCB layouts requiring thermal stability and EMI robustness.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24249NFPV, the R4F24248NFPV offers cost reduction through memory downscaling without layout changes, while the R4F24259NFPV extends connectivity at the expense of increased firmware complexity for CAN message handling - neither is pin-compatible by default unless explicitly validated in Renesas' migration guides.

Availability

R4F24249NFPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, and energy meter data loggers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R4F24249NFPV 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/2424 Group, including R4F24249NFPV, was designed for deterministic real-time control in resource-constrained industrial equipment where reliability, 5 V tolerance, and long-lifecycle support are critical.

FAQ

What is the maximum operating frequency of the R4F24249NFPV?

The R4F24249NFPV operates at a maximum CPU clock frequency of 33 MHz when supplied with 4.5 V to 5.5 V. This frequency is achieved using the on-chip clock pulse generator (CPG) with either an external crystal (1–10 MHz) or internal oscillator. At 33 MHz, the R4F24249NFPV delivers consistent instruction throughput for time-critical control loops, and its timing specifications are fully characterized across the full industrial temperature range (−40 °C to +85 °C).

Does the R4F24249NFPV include a hardware watchdog timer?

Yes, the R4F24249NFPV includes a dedicated watchdog timer (WDT) with an independent 15-bit free-running counter and selectable clock sources (including a dedicated RC oscillator). The WDT can generate either a non-maskable interrupt or a system reset upon timeout, and its register set is protected against accidental writes. This ensures fail-safe recovery in safety-critical applications such as motor control or industrial monitoring where the R4F24249NFPV must maintain operational integrity despite software faults.

What package type and pin count does the R4F24249NFPV use?

The R4F24249NFPV is packaged in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. This package supports 82 general-purpose I/O pins, multiple power/ground pairs, and dedicated clock/reset pins. Its mechanical dimensions and land pattern comply with JEDEC MO-152AC, enabling compatibility with standard industrial PCB assembly processes and thermal management practices used for the R4F24249NFPV in high-reliability applications.

Can the R4F24249NFPV execute code directly from its on-chip flash memory?

Yes, the R4F24249NFPV supports XIP (eXecute-In-Place) from its 256 KB on-chip flash memory. The flash interface is tightly coupled to the CPU bus, allowing zero-wait-state execution at 33 MHz for most instructions. Flash sectors can be individually erased and reprogrammed in-system using the built-in flash control module, enabling field firmware updates without requiring external programming hardware - a key capability for deployed R4F24249NFPV-based systems requiring long-term maintainability.

Is the R4F24249NFPV supported by Renesas' e2 studio IDE and CS+ development tools?

Yes, the R4F24249NFPV is fully supported by Renesas' CS+ (formerly High-performance Embedded Workshop) and e2 studio IDEs, including device-specific startup code, peripheral register views, and flash programming utilities. Debugging is enabled via the on-chip BDM interface using E2 emulator or E2 Lite debug probes. Renesas provides HAL drivers, example projects, and application notes specifically validated for the R4F24249NFPV, ensuring rapid bring-up and compliance with the H8S/2424 Group hardware specification.