Renesas R4F24268DVRFQV

Overview

R4F24268DVRFQV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2400 Series, designed for embedded control applications requiring deterministic real-time response, integrated peripherals, 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 interface via dedicated controller.

For engineers reviewing the R4F24268DVRFQV datasheet, R4F24268DVRFQV pinout, R4F24268DVRFQV application, or R4F24268DVRFQV equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), watchdog timer with windowed mode, and support for IEEE 802.3-compliant Ethernet MAC interface through external PHY coupling.

Technical Context

The R4F24268DVRFQV implements the H8S/2400 CPU core with 16-bit data bus and 24-bit address space, supporting both Normal and Advanced operating modes. It integrates a Clock Pulse Generator (CPG) with PLL for internal clock synthesis, a Bus Controller (BSC) for external memory expansion up to 16 MB, and dual-channel DMA controllers for high-throughput peripheral transfers.

Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with PWM output, Serial Communication Interface (SCI) supporting UART and LIN protocols, Watchdog Timer (WDT) with reset and interrupt options, and an Interrupt Controller (INT) managing up to 128 vector sources with priority encoding and nesting capability.

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; pins numbered counterclockwise. RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24268DVRFQV, the R4F24267DVRFQV removes CAN and halves memory resources for lower BOM cost, while the R4F24269DVRFQV extends thermal and endurance specs for harsher deployments-neither is pin-compatible with R4F24268DVRFQV due to differing peripheral enable configurations.

Availability

R4F24268DVRFQV is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and smart energy infrastructure requiring stable component supply across multi-year production cycles.

Supply support for R4F24268DVRFQV 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The H8S/2400 Series, including R4F24268DVRFQV, was engineered for deterministic real-time control in resource-constrained embedded systems where code density, interrupt latency, and peripheral integration are critical design factors.

FAQ

What is the maximum operating frequency of the R4F24268DVRFQV?

The R4F24268DVRFQV supports a maximum CPU clock frequency of 32 MHz, achieved using its on-chip Clock Pulse Generator (CPG) with PLL multiplier. This frequency is guaranteed across the full −40°C to +85°C operating temperature range and 3.0 V to 3.6 V supply voltage. The R4F24268DVRFQV achieves 32 MIPS performance at this speed, enabling real-time processing of sensor data and control loops without external acceleration.

Does the R4F24268DVRFQV include a built-in CAN controller?

Yes, the R4F24268DVRFQV integrates a full-featured CAN 2.0B controller compliant with ISO 11898-1. It supports bit rates up to 1 Mbps, 32 message objects with hardware acceptance filtering, automatic retransmission, and error confinement. The R4F24268DVRFQV does not include a physical CAN transceiver - external transceivers such as the SN65HVD230 must be used on the CAN_TX/CAN_RX pins to complete the bus interface.

What debugging interfaces does the R4F24268DVRFQV support?

The R4F24268DVRFQV supports JTAG-based on-chip debugging via the dedicated TDI, TDO, TCK, TMS, and TRST pins. It includes hardware breakpoints, watchpoints, and real-time trace buffer access. The R4F24268DVRFQV does not support SWD or serial-wire debug; JTAG is the only standardized debug interface. Renesas E2 emulator and compatible third-party tools (e.g., Segger J-Link) fully support the R4F24268DVRFQV's debug architecture.

Is the R4F24268DVRFQV pin-compatible with other H8S/2426 variants?

No, the R4F24268DVRFQV is not pin-compatible with earlier H8S/2426 variants such as R4F2426 or R4F2426R. While sharing the same 100-pin LQFP package footprint, pin functions differ significantly - particularly for CAN, Ethernet MAC signals, and peripheral multiplexing. Migration requires PCB layout revision. The R4F24268DVRFQV is part of the later "DVRFQV" suffix family with updated peripheral mapping and voltage tolerance specifications.

What is the Flash memory endurance specification for the R4F24268DVRFQV?

The R4F24268DVRFQV specifies 10,000 write/erase cycles for its 512 KB on-chip Flash memory, measured per sector. Data retention is guaranteed for 20 years at +85°C and indefinitely at +25°C. The R4F24268DVRFQV also includes 4 KB of data flash with identical endurance and retention, configured for EEPROM-like usage with built-in wear-leveling routines accessible via Renesas-provided firmware libraries.