Renesas R5F61632N50FPV

Overview

R5F61632N50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1632 Group, featuring a 50 MHz maximum CPU clock, 256 KB on-chip Flash memory, and integrated peripherals including TPU, SCI, WDT, and DTC. It operates from a single 3.3 V supply and targets embedded control applications requiring deterministic real-time response and code density efficiency.

For engineers reviewing the R5F61632N50FPV datasheet, R5F61632N50FPV pinout, R5F61632N50FPV application, or R5F61632N50FPV equivalent, this device is evaluated for use in industrial motor control, HVAC system management, and programmable logic controllers where integrated timer precision, serial communication reliability, and Flash endurance are critical selection criteria.

Technical Context

The R5F61632N50FPV implements the H8SX CPU core with three operating modes (Normal, Middle, Advanced) supporting variable instruction set complexity and addressing flexibility. It integrates a Clock Pulse Generator (CPG) with PLL for internal clock synthesis and supports external crystal or oscillator inputs up to 20 MHz.

Peripheral subsystems include a 16-bit Timer Pulse Unit (TPU) with 8 channels, two Serial Communication Interfaces (SCI) compliant with UART protocols, a Data Transfer Controller (DTC) for autonomous memory-to-peripheral transfers, and a Watchdog Timer (WDT) with windowed operation mode for fail-safe monitoring.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, plastic body with exposed thermal pad (FPV suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F61632N50FPV, the R5F61632N40FPV trades clock speed and Flash capacity for lower unit cost, while the R5F61632N50FNV maintains identical performance but changes package form factor - both require validation of thermal dissipation and signal integrity in the target layout.

Availability

R5F61632N50FPV is available at Aetrix Electronics and suitable for industrial motor control, HVAC system management, and programmable logic controller applications requiring stable component supply across multi-year production cycles.

Supply support for R5F61632N50FPV 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 specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The H8SX/1632 Group, including R5F61632N50FPV, was designed for deterministic real-time embedded control in industrial equipment where code efficiency, peripheral integration, and long-term supply stability are prioritized over raw computational throughput.

FAQ

What is the maximum operating frequency of the R5F61632N50FPV?

The R5F61632N50FPV supports a maximum CPU clock frequency of 50 MHz, achieved using its internal PLL with an external crystal or clock source up to 20 MHz. This frequency is fully supported across the specified industrial temperature range (−40 °C to +85 °C) and 3.0–3.6 V supply voltage. The R5F61632N50FPV's timing specifications, including instruction cycle times and peripheral bus latencies, are guaranteed at this maximum rate per the official Renesas Hardware Manual Rev. 2.00.

Does the R5F61632N50FPV include on-chip debug support?

Yes, the R5F61632N50FPV integrates an on-chip debugging interface compliant with the Renesas E10A-USB or E20 emulator protocols. It supports full breakpoint, watchpoint, and real-time trace capabilities via dedicated debug pins (BKGD, TRST, etc.) without requiring external JTAG adapters. This allows in-circuit debugging of R5F61632N50FPV firmware during development and field diagnostics without halting real-time peripheral operation.

What is the Flash memory endurance rating for the R5F61632N50FPV?

The R5F61632N50FPV specifies 100,000 write/erase cycles for its 256 KB on-chip Flash memory, with data retention guaranteed for 20 years at 85 °C. This endurance applies to standard sector erase and programming operations under recommended voltage and temperature conditions. The R5F61632N50FPV also supports EEPROM emulation functions in designated Flash sectors, enabling wear-leveling and atomic update mechanisms for nonvolatile parameter storage.

Can the R5F61632N50FPV operate from a 5 V supply?

No, the R5F61632N50FPV is a 3.3 V-only device with absolute maximum ratings specifying VCC between 3.0 V and 3.6 V. Operation outside this range may cause permanent damage or unpredictable behavior. The R5F61632N50FPV does not support 5 V tolerant I/O - all digital pins are referenced to VCC and must not exceed VCC + 0.3 V. External level-shifting is required for interfacing with 5 V peripherals.

Is the R5F61632N50FPV pin-compatible with other members of the H8SX/1632 Group?

Yes, the R5F61632N50FPV shares identical pin assignment, electrical characteristics, and package dimensions with other H8SX/1632 variants in the same FPV (LQFP-100) package, including R5F61632N40FPV and R5F61632N50FNV (PQFP variant). Pin-to-pin compatibility extends to power, clock, reset, and all peripheral I/O signals - enabling direct substitution within the same package family without PCB redesign.