Renesas R5F72866D100FP#U2

Overview

R5F72866D100FP#U2 from Renesas Electronics is a 32-bit SuperH RISC microcontroller featuring a 100 MHz CPU clock, 1 MB on-chip Flash memory, and 128 KB RAM. It integrates dual CAN controllers (CAN v2.0B compliant), 12-bit ADC with 24 channels, and a USB 2.0 full-speed interface. Designed for real-time industrial control applications including motor drive systems and programmable logic controllers.

For engineers reviewing the R5F72866D100FP#U2 datasheet, R5F72866D100FP#U2 pinout, R5F72866D100FP#U2 application, or R5F72866D100FP#U2 equivalent, key selection criteria include its dual-CAN support with time-triggered communication capability, 100 MHz real-time execution performance, Flash memory endurance (100k write/erase cycles), and industrial-grade operating temperature range (−40°C to +85°C).

Technical Context

The R5F72866D100FP#U2 implements the SH-2A CPU core with superscalar architecture, supporting both integer and floating-point operations via integrated FPU extension. Its system-on-chip design includes a multi-layer bus matrix, configurable interrupt controller (INTC) with 128 vectors, and data transfer controller (DTC) for zero-CPU-overhead peripheral-to-memory transfers.

Hardware peripherals are synchronized through a flexible clock pulse generator (CPG) supporting multiple PLL configurations, external crystal (1–20 MHz), and internal oscillator options. The device supports three MCU operating modes (Single Chip, MCU Extension Modes 0–2), enabling boot configuration flexibility and memory mapping control for deterministic real-time response.

Key Specifications

Pinout & Package

The R5F72866D100FP#U2 is housed in a 256-pin LQFP package (28 mm × 28 mm, 0.4 mm pitch) with exposed thermal pad, rated for industrial temperature operation and RoHS compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72866D100FP#U2, the R5F72865D100FP#U2 reduces memory and removes USB at lower cost, while the R5F72867D100FP#U2 adds Ethernet and RAM for higher-level protocol handling-both retain identical CAN timing behavior and industrial qualification.

Availability

R5F72866D100FP#U2 is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and building management systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F72866D100FP#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 industrial, automotive, and enterprise applications.

The SH7280 Group-including R5F72866D100FP#U2-is engineered for deterministic real-time control in harsh industrial environments, emphasizing CAN-based distributed systems, motor control precision, and functional safety readiness.

FAQ

What is the maximum operating frequency of the R5F72866D100FP#U2?

The R5F72866D100FP#U2 operates at a maximum CPU clock frequency of 100 MHz, achieved via its integrated PLL-based clock pulse generator (CPG) with support for external crystal (1–20 MHz) or oscillator inputs. This frequency is fully validated across the industrial temperature range (−40°C to +85°C) and supply voltage (2.7 V to 3.6 V), enabling deterministic real-time execution for motor control and PLC applications. All timing specifications in the hardware manual assume this 100 MHz operation.

Does the R5F72866D100FP#U2 support CAN FD?

The R5F72866D100FP#U2 implements CAN v2.0B protocol only and does not support CAN FD data rates or extended frame formats. Its dual CAN controllers provide full ISO 11898-1 compliance with time-triggered communication mode, but lack the bit-rate switching, CRC enhancements, and payload expansion required for CAN FD. For CAN FD applications, Renesas recommends the RH850/F1K series or RA6T2 MCUs-not the R5F72866D100FP#U2.

What debug interfaces are supported by the R5F72866D100FP#U2?

The R5F72866D100FP#U2 supports IEEE 1149.1 JTAG and Renesas proprietary FINE interface for on-chip debugging. It is fully compatible with Renesas E1 and E20 emulators, enabling real-time trace, breakpoint insertion, and register inspection. No SWD or cJTAG support is provided-the R5F72866D100FP#U2 requires dedicated JTAG cabling and Renesas-provided debug software (CS+ or e2 studio) for full visibility into SH-2A core state and peripheral registers.

Is the R5F72866D100FP#U2 qualified for automotive applications?

No, the R5F72866D100FP#U2 is classified as a Standard quality grade device per Renesas documentation and is intended for industrial applications such as motor drives and PLCs-not automotive use. It lacks AEC-Q100 qualification, failsafe mechanisms, and extended temperature validation required for automotive ECUs. For automotive CAN-based control units, Renesas offers RH850 or RL78/F1x families instead of the R5F72866D100FP#U2.

What is the Flash endurance specification for the R5F72866D100FP#U2?

The on-chip Flash memory of the R5F72866D100FP#U2 is rated for 100,000 write/erase cycles per sector under industrial operating conditions (−40°C to +85°C). This endurance applies to all 1 MB of Flash, including boot and user sectors, and is verified per JEDEC JESD22-A117. Data retention exceeds 20 years at +85°C, and sector protection features prevent accidental erasure during field firmware updates-critical for reliable operation in R5F72866D100FP#U2-based control systems.