Renesas R5F72433N100FP#U0

Overview

R5F72433N100FP#U0 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring 1 MB of on-chip Flash memory, 128 KB RAM, and integrated peripherals including CAN controller, USB 2.0 FS, 12-bit ADC (16 channels), and MTU2 timer units. It operates at up to 100 MHz and targets industrial motor control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the R5F72433N100FP#U0 datasheet, R5F72433N100FP#U0 pinout, R5F72433N100FP#U0 application, or R5F72433N100FP#U0 equivalent, key selection criteria include its 100-pin LQFP package, CAN 2.0B compliance, 100 MHz CPU clock with PLL, Flash endurance (100k write/erase cycles), and support for single-chip mode with external bus interface disabled.

Technical Context

The R5F72433N100FP#U0 implements the SH-2A CPU core with 5-stage pipeline, FPU support, and dual-issue capability for high instruction throughput. Its system architecture integrates a Bus State Controller (BSC) for external memory access, Clock Pulse Generator (CPG) with programmable PLL for flexible clock synthesis, and Data Transfer Controller (DTC) for autonomous peripheral-to-memory transfers without CPU intervention.

Peripheral integration includes two independent CAN controllers compliant with ISO 11898-1:2003, a full-speed USB 2.0 transceiver with internal PHY, and a 12-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing. All peripherals are memory-mapped and accessible via dedicated interrupt vectors managed by the Interrupt Controller (INTC).

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72433N100FP#U0, the R5F72434N100FP#U0 adds data flash for wear-levelled parameter storage, while the R5F72432N100FP#U0 reduces memory to lower cost-both retain identical peripheral sets, clocking, and CAN/USB functionality for seamless migration within the SH7243 family.

Availability

R5F72433N100FP#U0 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and factory automation systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for R5F72433N100FP#U0 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 Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7243 Group, including the R5F72433N100FP#U0, was designed for real-time embedded control in safety-critical industrial and automotive applications, emphasizing deterministic timing, integrated communication interfaces, and robust peripheral integration.

FAQ

What is the maximum operating frequency of the R5F72433N100FP#U0?

The R5F72433N100FP#U0 operates at a maximum CPU frequency of 100 MHz, achieved using the on-chip Clock Pulse Generator (CPG) with PLL circuitry. This frequency is supported across the full industrial temperature range (−40°C to +85°C) when powered at 3.3 V ±10%. The R5F72433N100FP#U0's SH-2A core delivers high instruction throughput via dual-issue capability and 5-stage pipeline, enabling real-time control loops with sub-microsecond latency.

Does the R5F72433N100FP#U0 include an integrated USB transceiver?

Yes, the R5F72433N100FP#U0 integrates a full-speed USB 2.0 transceiver with internal PHY, supporting device-mode operation without external components. The USBDP/USBDM pins connect directly to the USB connector, with a mandatory 1.5 kΩ pull-up resistor on USBDP for host detection. This integration reduces bill-of-materials cost and simplifies PCB layout compared to solutions requiring discrete PHY ICs.

How many CAN interfaces does the R5F72433N100FP#U0 support?

The R5F72433N100FP#U0 supports two independent CAN 2.0B controllers, each compliant with ISO 11898-1:2003. Both controllers feature 32 message objects, hardware acceptance filtering, and FIFO buffering. They operate concurrently and can be configured for different bit rates, making the R5F72433N100FP#U0 suitable for multi-bus architectures such as automotive body networks interfacing with powertrain or infotainment domains.

What is the Flash memory endurance specification for the R5F72433N100FP#U0?

The R5F72433N100FP#U0 specifies 100,000 write/erase cycles for its 1 MB on-chip Flash memory, validated under standard industrial operating conditions. This endurance rating applies to sector-level erasure and byte/word programming. For applications requiring frequent parameter updates, Renesas recommends using the data flash emulation library or selecting the R5F72434N100FP#U0 variant, which includes dedicated data flash memory with enhanced write-cycle tolerance.

Is the R5F72433N100FP#U0 pin-compatible with other SH7243 Group devices?

Yes, the R5F72433N100FP#U0 is pin-compatible with other 100-pin LQFP variants in the SH7243 Group, including the R5F72432N100FP#U0 and R5F72434N100FP#U0. All share identical pin assignments, electrical characteristics, and peripheral mappings. This allows hardware design reuse across memory-variant SKUs, enabling firmware differentiation and scalable product families without PCB redesign.