Renesas R5F72865D100FA#U2

Overview

R5F72865D100FA#U2 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 USB 2.0 FS host/device controller, CAN controller, 12-bit ADC (24 channels), and MTU2S timer unit. It operates at up to 120 MHz and targets automotive body control modules and industrial HMI applications requiring real-time deterministic response.

For engineers reviewing the R5F72865D100FA#U2 datasheet, R5F72865D100FA#U2 pinout, R5F72865D100FA#U2 application, or R5F72865D100FA#U2 equivalent, key selection criteria include its 100-pin LQFP package, -40°C to +105°C operating temperature range, AEC-Q100 Grade 2 qualification, dual CAN interface support, and integrated CPG with PLL for flexible clock synthesis.

Technical Context

The R5F72865D100FA#U2 implements the SH-2A CPU core with 5-stage pipeline, FPU support, and 32-bit address/data bus. Its system architecture integrates a Bus State Controller (BSC) for external memory expansion, Data Transfer Controller (DTC) for zero-CPU-overhead peripheral-to-memory transfers, and Interrupt Controller (INTC) supporting 192 interrupt sources with programmable priority levels.

Peripherals include two independent CAN controllers compliant with ISO 11898-1:2003, a USB 2.0 Full-Speed controller with on-chip transceiver, and a 12-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing across 24 input channels.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72865D100FA#U2, the R5F72864D100FA#U2 offers lower memory capacity at reduced cost and power, while the R5F72866D100FA#U2 extends connectivity with integrated Ethernet - enabling scalable platform design across entry, mid, and high-tier product variants.

Availability

R5F72865D100FA#U2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial HMI systems, and smart building control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant reliability.

Supply support for R5F72865D100FA#U2 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 leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.

The SH7280 Group, which includes the R5F72865D100FA#U2, was designed specifically for automotive body electronics and industrial control systems demanding high integration, real-time determinism, and functional safety compliance.

FAQ

What is the maximum operating frequency of the R5F72865D100FA#U2?

The R5F72865D100FA#U2 operates at a maximum CPU frequency of 120 MHz, achieved using the on-chip CPG's PLL with an external crystal (e.g., 8 MHz) or external clock source. This frequency is fully supported across the entire specified temperature range (−40°C to +105°C) and supply voltage (2.7 V to 5.5 V), and is validated in Renesas' characterization testing for the SH7280 Group.

Does the R5F72865D100FA#U2 include hardware support for functional safety standards?

Yes, the R5F72865D100FA#U2 includes hardware features aligned with ASIL-B requirements per ISO 26262, including Flash ECC, SRAM parity, lockstep-capable watchdog timer (WDT), and clock/failure detection circuits. While the R5F72865D100FA#U2 itself is not ASIL-B certified, Renesas provides safety manuals and FMEDA reports to support customer-level certification efforts.

Can the R5F72865D100FA#U2 operate without an external crystal?

Yes, the R5F72865D100FA#U2 can operate using an external clock signal applied to the EXTAL pin, or optionally use the internal high-speed oscillator (HOCO) for initial boot before switching to PLL-stabilized clocks. However, USB and CAN timing accuracy require an external crystal (typically 8 MHz or 20 MHz) for full specification compliance.

How many CAN interfaces does the R5F72865D100FA#U2 support, and are they electrically isolated?

The R5F72865D100FA#U2 integrates two independent CAN controllers (CAN0 and CAN1), each with dedicated message RAM, filtering logic, and error counters. Neither controller includes galvanic isolation; external isolated CAN transceivers (e.g., ISO1050 or ADM3053) must be used where bus-level isolation is required.

Is the R5F72865D100FA#U2 pin-compatible with other members of the SH7280 Group?

Yes, the R5F72865D100FA#U2 is pin-compatible with other 100-pin LQFP variants in the SH7280 Group, including R5F72864D100FA#U2 and R5F72866D100FA#U2. All share identical pin assignments, electrical characteristics, and mechanical footprint - enabling hardware reuse across memory and peripheral variants.