Renesas R4F24548NVFPV

Overview

R4F24548NVFPV from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2454 Group, featuring an H8S/2600 CPU core, 512 KB on-chip flash memory, 32 KB RAM, and integrated peripherals including TPU, SCI, WDT, and CPG. It operates at up to 33 MHz, supports 5 V supply, and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the R4F24548NVFPV datasheet, R4F24548NVFPV pinout, R4F24548NVFPV application, or R4F24548NVFPV equivalent, key selection criteria include its 100-pin LQFP package, 33 MHz max CPU clock, 512 KB flash with 10⁴ write/erase cycles, 32 KB SRAM, and support for external bus expansion with 16-bit data/24-bit address interface.

Technical Context

The R4F24548NVFPV implements the H8S/2600 CPU architecture with 32-bit internal data paths, 24-bit linear addressing, and advanced mode enabling extended register access and privileged instruction sets. It integrates a programmable clock pulse generator (CPG) supporting multiple clock sources (main, sub, PLL), and features dual watchdog timers - one for CPU reset and one for software supervision.

Peripheral integration includes a 16-bit Timer Pulse Unit (TPU) with 8 channels, two asynchronous serial interfaces (SCI) with framing and parity support, and a Bus State Controller (BSC) enabling external memory mapping with wait-state control, programmable bus width, and chip-select timing configuration.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, optimized for industrial PCB layouts requiring moderate I/O count and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F24548NVFPV, R4F24568NVFPV offers scalable memory within identical hardware footprint, while R5F52454BDFP delivers architectural advancement at the cost of layout rework - making the former ideal for memory-constrained upgrades and the latter suitable for next-generation feature expansion.

Availability

R4F24548NVFPV is available at Aetrix Electronics and suitable for industrial PLC modules, motor drive controllers, energy metering systems, and factory HMI terminals requiring stable component supply and long-term lifecycle support.

Supply support for R4F24548NVFPV 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/2454 Group, including R4F24548NVFPV, was designed for deterministic real-time control in cost-sensitive industrial equipment where 5 V operation, external bus expansion, and mature toolchain support are essential.

FAQ

What is the maximum operating frequency of the R4F24548NVFPV?

The R4F24548NVFPV supports a maximum CPU clock frequency of 33 MHz when using the on-chip PLL with an external 4–8 MHz crystal. This frequency is achievable under full 5 V supply and within the −40 °C to +85 °C temperature range, delivering consistent real-time performance for time-critical control tasks. The R4F24548NVFPV's CPG module allows dynamic clock source selection and division ratios to balance speed and power consumption.

Does the R4F24548NVFPV support in-system programming (ISP)?

Yes, the R4F24548NVFPV supports in-application programming (IAP) of its 512 KB on-chip flash memory via the built-in FINE debug interface or user firmware routines. This enables field firmware updates without removing the device from the board. The R4F24548NVFPV flash supports sector erase (minimum 1 KB) and byte/word programming, with endurance rated at 10⁴ write/erase cycles per sector and data retention of 20 years at 85 °C.

What debug interface does the R4F24548NVFPV use?

The R4F24548NVFPV uses the FINE (Fast In-Circuit Emulator) debug interface, a 4-pin synchronous serial protocol supporting non-intrusive breakpoints, real-time memory/register access, and flash programming. Unlike JTAG, FINE operates at full CPU speed and requires no dedicated debug clock. The R4F24548NVFPV's FINE port is accessible via dedicated pins (MD0–MD3) and is fully supported by Renesas E1/E20 emulators and CS+ IDE.

Is the R4F24548NVFPV pin-compatible with other H8S/2454 Group devices?

Yes, the R4F24548NVFPV is pin-compatible with all members of the H8S/2454 Group sharing the 100-pin LQFP package (e.g., R4F2454, R4S2454), including identical pin functions, electrical characteristics, and mechanical footprint. This allows direct substitution for memory size or ROM/RAM configuration changes without PCB modification. The R4F24548NVFPV maintains full functional compatibility with these variants in all operating modes and peripheral configurations.

What industrial certifications apply to the R4F24548NVFPV?

The R4F24548NVFPV is manufactured as a Standard-grade Renesas product, qualified per JEDEC JESD22-A108 for reliability and tested to meet industrial temperature (−40 °C to +85 °C), ESD (HBM ±2 kV), and latch-up (±100 mA) specifications. It complies with RoHS Directive 2011/65/EU and REACH SVHC regulations. While not AEC-Q100 qualified, the R4F24548NVFPV is approved for use in industrial automation, test equipment, and building control systems per Renesas' quality grade definitions.