Renesas R5F61662D50FPV

Overview

R5F61662D50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1662 Group, featuring a 40 MHz maximum CPU clock, 256 KB on-chip Flash memory, and integrated peripherals including TPU, SCI, WDT, and DTC. It operates from a 3.0–3.6 V supply and targets industrial control systems requiring deterministic real-time response and robust peripheral integration.

For engineers reviewing the R5F61662D50FPV datasheet, R5F61662D50FPV pinout, R5F61662D50FPV application, or R5F61662D50FPV equivalent, key selection criteria include its 100-pin LQFP package, 40 MHz operation at industrial temperature range (−40°C to +85°C), Flash memory endurance (10,000 write/erase cycles), and support for single-cycle instruction execution on critical paths.

Technical Context

The R5F61662D50FPV implements the H8SX CPU core with three operating modes-Normal, Middle, and Advanced-enabling scalable performance and power management. It integrates a programmable pulse generator (PPG), 16-bit timer pulse unit (TPU) with input capture/output compare, and dual serial communications interfaces (SCI) supporting asynchronous and clock-synchronous protocols.

Its system architecture includes a bus controller (BSC) with wait-state control, clock pulse generator (CPG) supporting PLL-based frequency multiplication, and data transfer controller (DTC) for autonomous memory-to-peripheral transfers without CPU intervention-reducing interrupt overhead in high-throughput I/O applications.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad (FPV suffix). Pin functions conform to H8SX/1662 Group specification Rev. 2.00 (Oct. 2009).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F61662D50FPV, R5F61662D50FP offers identical functionality with RoHS-only differentiation, while R5F61665D50FPV extends capability with CAN and doubled Flash-making it suitable for more complex networked control but requiring firmware and layout review for new peripherals.

Availability

R5F61662D50FPV is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, energy metering interfaces, and building HVAC controllers requiring stable component supply across long production lifecycles.

Supply support for R5F61662D50FPV 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 infrastructure markets.

The H8SX/1662 Group, including R5F61662D50FPV, was designed for deterministic real-time control in industrial equipment-emphasizing peripheral integration, Flash reliability, and wide-temperature operation without automotive-grade qualification.

FAQ

What is the maximum operating frequency of the R5F61662D50FPV?

The R5F61662D50FPV supports a maximum CPU clock frequency of 40 MHz, achieved via its on-chip clock pulse generator (CPG) with PLL multiplier. This allows single-cycle instruction execution at 25 ns, enabling tight real-time control loops in applications such as motor commutation and sensor sampling. The device maintains this frequency across its full industrial temperature range (−40°C to +85°C) when supplied with 3.0–3.6 V.

Does the R5F61662D50FPV include on-chip Flash memory, and what is its endurance rating?

Yes, the R5F61662D50FPV integrates 256 KB of on-chip Flash memory, rated for 10,000 write/erase cycles and data retention of 20 years at 85°C. This Flash supports in-application programming (IAP) and EEPROM emulation, making it suitable for field-upgradable firmware and parameter storage in industrial controllers. The R5F61662D50FPV Flash architecture includes block protection and secure boot features to prevent unauthorized modification.

Which communication interfaces are integrated into the R5F61662D50FPV?

The R5F61662D50FPV includes two independent Serial Communications Interfaces (SCI), each supporting asynchronous (UART) and clock-synchronous (SPI-like) modes with hardware FIFO, framing error detection, and automatic address recognition. It does not include CAN, I²C, or USB controllers. These SCIs are pin-multiplexed with general-purpose I/O ports and support baud rates up to 2 Mbps under optimal conditions, making them suitable for Modbus RTU and proprietary fieldbus protocols.

What timer peripherals are available on the R5F61662D50FPV, and how are they used in motor control?

The R5F61662D50FPV integrates an 8-channel 16-bit Timer Pulse Unit (TPU) and a Watchdog Timer (WDT) with windowed mode. In motor control, the TPU provides hardware PWM generation with programmable dead-time insertion, input capture for encoder position feedback, and complementary output control-critical for preventing shoot-through in half-bridge inverters. The R5F61662D50FPV TPU operates independently of CPU load, ensuring jitter-free timing even during heavy interrupt activity.

Is the R5F61662D50FPV qualified for automotive applications?

No, the R5F61662D50FPV is classified as a "Standard" quality grade device per Renesas documentation and is intended for industrial applications such as motor control, PLCs, and HVAC systems-not for automotive, aerospace, medical life-support, or other "Specific" or "High Quality" use cases. It lacks AEC-Q100 qualification, extended temperature range beyond +85°C, and automotive-specific fault diagnostics. For automotive designs, Renesas recommends RH850 or RL78/F1x families instead of the R5F61662D50FPV.