Renesas R4F24245NVFPV

Overview

R4F24245NVFPV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2424 Group, featuring an H8S/2400 Series CPU core, 256 KB on-chip flash memory, 16 KB RAM, 32 MHz max operating frequency, and integrated peripherals including TPU, SCI, WDT, and I²C-compatible interface. It targets industrial control panels requiring deterministic real-time response and compact footprint.

For engineers reviewing the R4F24245NVFPV datasheet, R4F24245NVFPV pinout, R4F24245NVFPV application, or R4F24245NVFPV equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V supply operation, 16-bit timer pulse unit with PWM output capability, watchdog timer with window function, and support for both normal and advanced CPU operating modes.

Technical Context

The R4F24245NVFPV implements the H8S/2400 CPU architecture with 24-bit address space, supporting both Normal and Advanced operating modes. It integrates a Clock Pulse Generator (CPG) with internal oscillator, PLL circuit for clock multiplication, and programmable wait-state controller for memory access timing.

Peripheral subsystems include a 16-bit Timer Pulse Unit (TPU) with 8 channels, two Serial Communication Interfaces (SCI) supporting asynchronous and clock-synchronous modes, a Watchdog Timer (WDT) with windowed enable/disable, and an I²C-compatible interface for sensor and EEPROM communication.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) for improved heat dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24245NVFPV, the R4F24244NVFPV offers cost reduction through memory downscaling while maintaining identical peripheral set and timing behavior, whereas the R4F24246NVFPV extends scalability for evolving feature requirements without PCB redesign.

Availability

R4F24245NVFPV is available at Aetrix Electronics and suitable for industrial automation, motor control, building management, and medical device applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R4F24245NVFPV 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8S/2424 Group, including R4F24245NVFPV, was designed for deterministic real-time control in resource-constrained industrial equipment where reliability, peripheral integration, and long-term availability are critical.

FAQ

What is the maximum operating frequency of the R4F24245NVFPV?

The R4F24245NVFPV operates at a maximum frequency of 32 MHz. This is achieved using the on-chip PLL with an external crystal input (typically 4–8 MHz). At this speed, the CPU executes instructions with a minimum cycle time of 31.25 ns, enabling tight real-time control loops. The R4F24245NVFPV's CPG supports multiple clock sources and configurable wait states to maintain stability across voltage and temperature variations.

Does the R4F24245NVFPV support in-system programming of its flash memory?

Yes, the R4F24245NVFPV supports in-system programming (ISP) of its 256 KB on-chip flash memory via the on-chip debug interface or SCI bootloader. Firmware updates can be performed without removing the device from the PCB. The flash includes sector-level lock bits and read-out protection to prevent unauthorized access. Programming requires adherence to Renesas' specified voltage and timing sequences documented in the R4F24245NVFPV hardware manual.

What peripheral interfaces are integrated into the R4F24245NVFPV?

The R4F24245NVFPV integrates a 16-bit Timer Pulse Unit (TPU) with eight channels, two Serial Communication Interfaces (SCI) supporting UART and clock-synchronous modes, a windowed Watchdog Timer (WDT), an I²C-compatible interface, an 8-channel 10-bit ADC, and two 8-bit DACs. These peripherals eliminate the need for external components in many industrial control designs and are mapped to dedicated pins with configurable alternate functions.

Is the R4F24245NVFPV pin-compatible with other members of the H8S/2424 Group?

Yes, the R4F24245NVFPV is pin-compatible with other 100-pin LQFP variants in the H8S/2424 Group, including R4F24244NVFPV and R4F24246NVFPV. All share identical pin assignments, electrical characteristics, and peripheral mappings. Differences are limited to on-chip memory size and factory-programmed option bytes - allowing direct substitution in existing layouts when memory requirements change.

What is the operating temperature range certified for the R4F24245NVFPV?

The R4F24245NVFPV is rated for operation from −40°C to +85°C ambient temperature. This extended industrial temperature grade is verified per Renesas' Standard quality classification and applies to all electrical specifications in the datasheet. The device includes on-chip temperature monitoring circuitry and thermal derating guidance in the R4F24245NVFPV hardware manual to support reliable deployment in unventilated enclosures or high-ambient environments.