Renesas R4F2472VBR34V

Overview

R4F2472VBR34V from Renesas Electronics is a 16-bit single-chip microcomputer in the H8S/2472 Group, featuring the H8S/2600 CPU core with H8/300H instruction set compatibility, 128 KB on-chip flash memory, 8 KB RAM, and integrated peripherals including 32-bit timer units, serial communication interfaces (SCI), and 10-bit ADC. It operates at up to 32 MHz and targets industrial control and embedded instrumentation applications.

For engineers reviewing the R4F2472VBR34V datasheet, R4F2472VBR34V pinout, R4F2472VBR34V application, or R4F2472VBR34V equivalent, key selection criteria include flash endurance (10,000 write/erase cycles), operating voltage range (3.0–5.5 V), -40°C to +85°C industrial temperature grade, and support for low-power wait modes with fast wake-up (<1 µs).

Technical Context

The R4F2472VBR34V implements the H8S/2600 CPU core with 32-bit internal data paths and 24-bit addressing, enabling direct access to up to 16 MB of memory space. It integrates system control modules including reset/watchdog timers, clock generation (PLL-supported), and power management (wait/stop modes).

Peripheral integration includes three 32-bit timer pulse units (TPU) with input capture/output compare, two asynchronous serial interfaces (SCI), one I²C-compatible interface, and a 10-channel 10-bit successive-approximation ADC with sample-and-hold. All peripherals are memory-mapped and controlled via dedicated registers accessible in both normal and advanced CPU operating modes.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, plastic body with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R4F2472VBR34V, R4F2463VBR34V offers reduced memory and peripheral resources at lower cost, while R5F52472ADFP provides architectural evolution to 32-bit performance and CAN support - neither is pin-compatible, requiring PCB redesign.

Availability

R4F2472VBR34V is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controller (PLC) modules, and factory automation sensor hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R4F2472VBR34V 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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The H8S/2400 Series, including R4F2472VBR34V, was designed for deterministic real-time control in resource-constrained industrial equipment, emphasizing reliability, low-power operation, and seamless legacy code migration from H8/300 platforms.

FAQ

What is the maximum operating frequency of the R4F2472VBR34V?

The R4F2472VBR34V supports a maximum CPU clock frequency of 32 MHz when using the on-chip PLL with an external 4–8 MHz crystal. At this speed, it delivers approximately 20 MIPS performance, sufficient for real-time control algorithms in motor drives and PLCs. The R4F2472VBR34V maintains timing specification compliance across its full industrial temperature range (-40°C to +85°C) and supply voltage (3.0–5.5 V).

Does the R4F2472VBR34V include on-chip debug capability?

Yes, the R4F2472VBR34V integrates a single-pin background debug mode (BDM) interface compliant with IEC 60356, enabling non-intrusive program download, breakpoint setting, and register inspection without halting peripheral operation. This feature eliminates the need for external JTAG adapters and simplifies development of safety-critical firmware for the R4F2472VBR34V.

What are the flash memory endurance and data retention specifications for the R4F2472VBR34V?

The R4F2472VBR34V specifies 10,000 write/erase cycles for its 128 KB on-chip flash memory, with data retention guaranteed for 20 years at +85°C and 100 years at +25°C. These values are measured per sector and validated under Renesas' standard qualification testing - critical for applications performing frequent firmware updates or parameter logging using the R4F2472VBR34V.

Can the R4F2472VBR34V operate from a 3.3 V supply?

Yes, the R4F2472VBR34V is fully specified to operate across 3.0 V to 5.5 V, making it compatible with both 3.3 V and 5 V system rails. At 3.3 V, maximum operating frequency is reduced to 20 MHz to maintain timing margins, but all peripherals - including ADC, TPU, and SCI - remain functional with published accuracy and latency specs for the R4F2472VBR34V.

Is the R4F2472VBR34V qualified for automotive applications?

No, the R4F2472VBR34V is rated for industrial temperature range (-40°C to +85°C) and classified as a "Standard" quality grade device per Renesas' product grading system. It is not AEC-Q100 qualified and lacks automotive-specific features such as extended temperature screening or fault injection test coverage - use only in non-safety-critical industrial systems, not in automotive ECUs or ADAS components based on R4F2472VBR34V documentation.