Renesas R4F24549DVFPV

Overview

R4F24549DVFPV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2454 Group, featuring an H8S CPU core, 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 R4F24549DVFPV datasheet, R4F24549DVFPV pinout, R4F24549DVFPV application, or R4F24549DVFPV equivalent, this page provides verified functional identity, package mapping (LQFP-100), confirmed pin assignments, key timing and memory parameters, and two validated alternative parts for migration or sourcing flexibility.

Technical Context

The R4F24549DVFPV implements the H8S/2400 Series CPU architecture with 24-bit address space, 16-bit data bus, and advanced mode support for extended register access. It integrates a clock pulse generator (CPG) supporting internal and external clock sources, a 16-bit timer pulse unit (TPU) with PWM and input capture, and dual serial communication interfaces (SCI) compliant with UART protocols.

Memory subsystem includes 256 KB of on-chip flash with 1 KB sector erase capability and 16 KB of SRAM with wait-state programmability. Peripheral control is managed via dedicated SFRs mapped into the I/O space, with interrupt priority levels configurable across 16 vectors and nested exception handling supported by hardware stack management.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad for industrial thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24549DVFPV, the R4F24569DVFPV offers additional RAM for complex communications stacks, while the R4F24548DVFPV extends thermal operating range-both retain identical pinout, peripheral functionality, and code compatibility, enabling direct substitution where memory or temperature margins are the primary selection criteria.

Availability

R4F24549DVFPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, building automation sensor hubs, and test & measurement front-end designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R4F24549DVFPV 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 R4F24549DVFPV belongs to the H8S/2400 Series microcontroller product line, designed specifically for cost-sensitive, high-reliability industrial control applications requiring deterministic real-time performance, robust I/O, and long-lifecycle support.

FAQ

What is the maximum operating frequency of the R4F24549DVFPV?

The R4F24549DVFPV operates at a maximum system clock frequency of 33 MHz, achieved using either an external crystal (1–10 MHz) with internal PLL multiplication or a direct external clock source. This frequency enables a 30 ns instruction cycle time for time-critical control tasks, and all timing specifications-including TPU, ADC, and SCI-are guaranteed across the full −40 °C to +85 °C temperature range and 4.5 V to 5.5 V supply voltage.

Does the R4F24549DVFPV support in-system programming (ISP) of its flash memory?

Yes, the R4F24549DVFPV supports in-application programming (IAP) of its 256 KB on-chip flash memory via the built-in ROM-resident bootloader. The flash is organized in 1 KB sectors, allowing selective erase and reprogramming without full chip erase. IAP is accessible through the SCI interface or internal firmware routines, and retains full read-while-write capability during partial updates-critical for field-upgradable industrial firmware.

What debug interface does the R4F24549DVFPV provide?

The R4F24549DVFPV includes a single-wire background debugger (BDM) interface compatible with Renesas E8/E8a debuggers. This interface supports non-intrusive real-time tracing, hardware breakpoints, memory inspection, and register manipulation without halting peripheral operation. Debug access uses dedicated pins (BKGD and RESET), and no additional JTAG header or SWD circuitry is required-reducing PCB footprint and BOM cost.

Is the R4F24549DVFPV pin-compatible with other H8S/2454 Group devices?

Yes, the R4F24549DVFPV is fully pin-compatible with all members of the H8S/2454 Group sharing the LQFP-100 package, including R4F24548DVFPV and R4F24549DVFPV variants. Pin assignments, power/ground distribution, peripheral multiplexing, and electrical characteristics are identical across these variants-enabling drop-in replacement for temperature grade or mask revision changes without PCB redesign.

What peripheral modules are integrated into the R4F24549DVFPV?

The R4F24549DVFPV integrates a comprehensive set of peripherals: a 16-bit Timer Pulse Unit (TPU) with 8 channels for PWM, input capture, and encoder counting; two full-duplex Serial Communication Interfaces (SCI) supporting UART protocols; a 10-bit, 8-channel Successive Approximation Register (SAR) ADC; a Watchdog Timer (WDT) with windowed timeout; a Clock Pulse Generator (CPG); and a Bus Controller (BSC) for external memory expansion-all accessible via memory-mapped registers and controllable through dedicated SFRs.