Renesas R5F61652N50FPV

Overview

R5F61652N50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1652 Group, featuring a 50 MHz maximum CPU clock, 256 KB on-chip Flash memory, and integrated peripherals including TPU, SCI, WDT, and DTC - deployed in industrial motor control and factory automation systems requiring deterministic real-time response.

For engineers reviewing the R5F61652N50FPV datasheet, R5F61652N50FPV pinout, R5F61652N50FPV application, or R5F61652N50FPV equivalent, key selection criteria include its 144-pin LQFP package, 3.3 V single-supply operation, 16-channel 16-bit timer pulse unit, and support for IEEE 802.3-compliant Ethernet MAC interface via external PHY.

Technical Context

The R5F61652N50FPV implements the H8SX CPU core with three operating modes (Normal, Middle, Advanced), supports 32-bit linear addressing up to 4 GB, and integrates a programmable clock pulse generator (CPG) enabling flexible system clock configuration including PLL-based multiplication of external crystal inputs.

It features a bus controller (BSC) supporting external memory expansion up to 16 MB, an interrupt controller (INTC) with 128 vector entries and priority-level nesting, and a data transfer controller (DTC) capable of autonomous DMA transfers without CPU intervention - critical for high-throughput I/O handling in motion control applications.

Key Specifications

Pinout & Package

144-pin LQFP (FPV suffix), 20 mm × 20 mm body, 0.5 mm lead pitch, exposed thermal pad (EP). Pin functions conform to H8SX/1652 Group specification Rev.2.00 (2009).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F61652N50FPV, R5F61655N50FPV offers higher memory capacity for complex firmware without altering hardware design, while R5F61652N40FPV trades clock speed for lower static power - both maintain identical peripheral functionality and pin compatibility, enabling direct substitution in validated designs.

Availability

R5F61652N50FPV is available at Aetrix Electronics and suitable for industrial motor control, factory automation gateways, smart energy meters, and PLC I/O modules requiring stable component supply across long-lifecycle deployments.

Supply support for R5F61652N50FPV 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The H8SX/1652 Group targets deterministic real-time embedded systems - designed for industrial automation, motion control, and networked equipment where reliability, peripheral integration, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the R5F61652N50FPV?

The R5F61652N50FPV operates at a maximum CPU clock frequency of 50 MHz, achieved using the on-chip PLL to multiply an external crystal or oscillator input. This frequency is fully supported across the specified industrial temperature range (−40°C to +85°C) and 3.3 V supply voltage, with timing parameters guaranteed in the official Renesas Hardware Manual Rev.2.00. The R5F61652N50FPV delivers consistent real-time performance for time-critical tasks such as PWM generation and encoder processing.

Does the R5F61652N50FPV include on-chip Flash memory, and what is its size?

Yes, the R5F61652N50FPV integrates 256 KB of on-chip Flash memory organized in dual banks, enabling safe firmware updates with background program/erase capability. This Flash supports 100,000 write/erase cycles and data retention for 20 years at 85°C. The R5F61652N50FPV uses this memory for executable code storage, configuration tables, and event logging - eliminating need for external non-volatile storage in many industrial applications.

Which communication interfaces are integrated into the R5F61652N50FPV?

The R5F61652N50FPV integrates three independent Serial Communication Interfaces (SCI), one Inter-Equipment Bus (IEBus) controller, and one CAN 2.0B controller. All are accessible via dedicated pins and support asynchronous, synchronous, and multi-drop configurations. These interfaces allow the R5F61652N50FPV to serve as a protocol gateway or fieldbus node without external transceivers - except for physical layer components required by specific standards (e.g., RS-485 driver for SCI, CAN transceiver for CAN bus).

What package type and pin count does the R5F61652N50FPV use?

The R5F61652N50FPV is housed in a 144-pin LQFP package (designated FPV), measuring 20 mm × 20 mm with 0.5 mm lead pitch and an exposed thermal pad. This package is RoHS-compliant and optimized for industrial PCB assembly. Pin assignments match the H8SX/1652 Group specification, ensuring mechanical and electrical compatibility with existing designs using other members of the same family, including the R5F61652N40FPV and R5F61655N50FPV.

Is the R5F61652N50FPV qualified for automotive applications?

No, the R5F61652N50FPV is classified as a "Standard" quality grade device per Renesas documentation and is intended for industrial, office, and consumer applications - not automotive or safety-critical systems. It is not AEC-Q100 qualified, lacks automotive temperature range (−40°C to +125°C), and does not include automotive-specific features such as enhanced ESD immunity or fault-tolerant CAN. For automotive use, Renesas recommends devices from the RH850 or RL78/F1x families instead of the R5F61652N50FPV.