Renesas R4F24279NVLPV

Overview

R4F24279NVLPV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2427 group, 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 R4F24279NVLPV datasheet, R4F24279NVLPV pinout, R4F24279NVLPV application, or R4F24279NVLPV equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), watchdog timer with windowed operation, TPU-based PWM generation with dead-time insertion, and support for IEEE 802.3-compliant Ethernet MAC interface through external PHY.

Technical Context

The R4F24279NVLPV implements the H8S/2000-compatible CPU core with enhanced addressing modes and extended register set, operating in both Normal and Advanced modes. It integrates a Clock Pulse Generator (CPG) supporting PLL multiplication (×1 to ×4), internal oscillator (1 MHz), and external crystal input (1–20 MHz).

Peripheral integration includes dual SCI modules (UART/IrDA), 3-channel 16-bit TPU with input capture/output compare, 8-channel 10-bit ADC with sample-and-hold, and a 32-bit bus controller (BSC) enabling seamless expansion with external SRAM, Flash, or peripherals at up to 32 MB address space.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24279NVLPV, the R4F24278NVLPV offers lower cost and same real-time performance but limits firmware scalability, while the R4F24279NVPV sacrifices CAN and I/O count for smaller footprint-neither is pin-compatible nor drop-in; layout and firmware adaptation are required for either alternative.

Availability

R4F24279NVLPV is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, factory automation I/O modules, and smart energy metering requiring stable component supply across multi-year production cycles.

Supply support for R4F24279NVLPV 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 R4F24279NVLPV, was engineered for deterministic real-time control in harsh environments-emphasizing peripheral integration, ESD robustness (±4 kV HBM), and long-term industrial temperature support (−40°C to +85°C).

FAQ

What is the maximum operating frequency of the R4F24279NVLPV?

The R4F24279NVLPV supports a maximum CPU clock frequency of 32 MHz, achieved using the on-chip PLL with external crystal input (e.g., 8 MHz crystal ×4). This yields a 31.25 ns instruction cycle time, enabling sub-microsecond interrupt response critical for motor control timing loops. The R4F24279NVLPV maintains this speed across its full industrial temperature range (−40°C to +85°C) with appropriate decoupling and power supply regulation.

Does the R4F24279NVLPV include an integrated CAN controller?

Yes, the R4F24279NVLPV integrates a full CAN 2.0B-compliant controller with 32 message objects, hardware acceptance filtering, and transmit/receive FIFOs. It uses dedicated CANRX and CANTX pins requiring an external ISO 11898-2 transceiver (e.g., TJA1050). This eliminates external CAN protocol ICs and reduces software overhead versus bit-banged implementations, making the R4F24279NVLPV suitable for automotive body control and industrial fieldbus nodes.

What package type and pin count does the R4F24279NVLPV use?

The R4F24279NVLPV is housed in a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm pitch. This package provides 72 general-purpose I/O pins, plus dedicated power, clock, reset, and peripheral interface pins. Its footprint aligns with IPC-7351B standards and supports standard reflow soldering profiles, making it compatible with high-volume SMT assembly for industrial control boards.

How much on-chip memory does the R4F24279NVLPV provide?

The R4F24279NVLPV includes 512 KB of on-chip Flash memory rated for 10,000 write/erase cycles and 32 KB of SRAM. The Flash supports in-application programming (IAP) and dual-bank operation for safe firmware updates. This memory configuration accommodates complex real-time control algorithms, communication stacks (e.g., CANopen, Modbus), and data logging buffers-making the R4F24279NVLPV viable for feature-rich industrial edge devices without external memory.

Is the R4F24279NVLPV qualified for automotive applications?

The R4F24279NVLPV is classified as a "Standard" quality grade device per Renesas documentation, intended for industrial, office, and communications equipment-not automotive safety-critical systems. While it operates across −40°C to +85°C and meets AEC-Q100 stress testing for some variants, Renesas explicitly excludes this part number from transportation equipment use (e.g., automobiles, trains) per its product disclaimer. For automotive body electronics, system-level functional safety validation remains the customer's responsibility when using the R4F24279NVLPV.