Renesas R4F24249DVFAU

Overview

R4F24249DVFAU from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, designed for embedded control applications requiring integrated peripherals, deterministic real-time response, and industrial-grade reliability. It features 512 KB on-chip Flash memory, 32 KB RAM, a 32 MHz max CPU clock, 100-pin LQFP package, and supports CAN 2.0B, SCI, TPU, WDT, and 10-bit ADC.

For engineers reviewing the R4F24249DVFAU datasheet, R4F24249DVFAU pinout, R4F24249DVFAU application, or R4F24249DVFAU equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), CAN bus timing compliance, peripheral interrupt latency (< 1.5 µs), and support for H8S/2400-family development tools including E8 emulator and High-performance Embedded Workshop.

Technical Context

The R4F24249DVFAU implements the H8S/2400 CPU core with 32-bit internal data paths, advanced mode operation supporting privileged instructions and memory protection, and a unified memory map spanning 16 MB address space. It integrates a Clock Pulse Generator (CPG) with PLL, Bus State Controller (BSC), and configurable wait-state logic for external memory interfacing.

Peripheral subsystems include a 16-bit Timer Pulse Unit (TPU) with 8 channels, 3-channel Serial Communication Interface (SCI) with LIN support, 10-bit 16-channel ADC with sample-and-hold, and a CAN controller compliant with ISO 11898-1:2003. All peripherals are memory-mapped and accessible via dedicated SFRs with priority-based interrupt handling through the INT controller.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP). Pin 1 marked by dot; pin numbering follows counter-clockwise sequence starting from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24249DVFAU, R5F24249DVFAU delivers 10× Flash endurance and CAN FD readiness while maintaining pin and code compatibility; MB9BF526R offers higher compute throughput but increases BOM cost and software porting effort due to architecture shift and missing integrated CAN controller.

Availability

R4F24249DVFAU is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, factory I/O modules, and energy meter data concentrators requiring stable component supply and long-term lifecycle support.

Supply support for R4F24249DVFAU 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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The H8S/2400 Series, including R4F24249DVFAU, was engineered for deterministic real-time control in harsh industrial environments-emphasizing peripheral integration, Flash reliability, and toolchain maturity over raw performance.

FAQ

What is the maximum operating frequency of the R4F24249DVFAU?

The R4F24249DVFAU operates at a maximum CPU clock frequency of 32 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL. This frequency enables a 31.25 ns instruction cycle time for time-critical control tasks. The actual achievable speed depends on VCC stability, ambient temperature, and external crystal load capacitance. The R4F24249DVFAU datasheet specifies timing margins under worst-case conditions across the −40°C to +85°C range.

Does the R4F24249DVFAU include an integrated CAN controller?

Yes, the R4F24249DVFAU integrates a single CAN 2.0B-compliant controller supporting bit rates up to 1 Mbps and full ISO 11898-1:2003 compliance. It features 32 message objects with programmable acceptance filtering, automatic retransmission, and error confinement. The controller connects to the physical layer via dedicated CAN_TX and CAN_RX pins, requiring an external transceiver such as the SN65HVD230 for bus coupling.

What development tools are supported for the R4F24249DVFAU?

The R4F24249DVFAU is fully supported by Renesas' legacy H8S toolchain, including the E8 emulator debugger, High-performance Embedded Workshop IDE, and C compiler (HEW C/C++ Compiler for H8S). It also works with third-party tools like IAR Embedded Workbench for H8S. Debugging uses IEEE 1149.1 JTAG via the on-chip debug support (OCDS), enabling real-time trace, breakpoint, and register inspection without code instrumentation.

Is the R4F24249DVFAU RoHS compliant and lead-free?

Yes, the R4F24249DVFAU is RoHS compliant and manufactured with lead-free (Pb-free) packaging per EU Directive 2011/65/EU. The LQFP package uses matte tin (Sn) termination finish and conforms to JEDEC J-STD-020 moisture sensitivity level 3 (MSL3). Full environmental compliance documentation-including substance declarations and test reports-is available through Renesas' official product page and Aetrix Electronics' material compliance portal.

What is the Flash memory endurance specification for the R4F24249DVFAU?

The R4F24249DVFAU specifies 10,000 write/erase cycles for its on-chip 512 KB Flash memory under standard operating conditions (VCC = 3.3 V, TA = 25°C). Endurance is verified per JEDEC JESD22-A117. Actual field endurance may vary with temperature, voltage, and erase block usage patterns. Renesas recommends implementing wear-leveling in firmware when using Flash for data logging or parameter storage to extend effective lifetime beyond the rated cycles.