Renesas R5F61658MN50FPV

Overview

R5F61658MN50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1658M Group, featuring a 40 MHz max CPU clock, 512 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 R5F61658MN50FPV datasheet, R5F61658MN50FPV pinout, R5F61658MN50FPV application, or R5F61658MN50FPV equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V single-supply operation, 16-channel 16-bit timer pulse unit, 4-channel serial interface with LIN support, and Flash endurance of 10,000 write/erase cycles.

Technical Context

The R5F61658MN50FPV implements the H8SX CPU core with three operating modes (Normal, Middle, Advanced) and supports instruction fetch from on-chip Flash or external memory via the Bus Controller (BSC). It integrates a Clock Pulse Generator (CPG) with PLL for internal clock synthesis and configurable prescalers to derive peripheral clocks.

Its interrupt architecture includes a 16-level priority Interrupt Controller (INTC) supporting vectorized handling, while the Data Transfer Controller (DTC) enables autonomous memory-to-peripheral transfers without CPU intervention - critical for high-throughput sensor data acquisition and PWM waveform generation in closed-loop control.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (Plastic Low-profile Quad Flat Package), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F61658MN50FPV, the R5F61658MN50FPV-G offers identical performance with enhanced environmental compliance, while the R5F61654MN50FPV trades memory and timer resources for lower unit cost - enabling tiered product variants without architectural redesign.

Availability

R5F61658MN50FPV is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and factory automation gateways requiring stable component supply across extended production lifecycles.

Supply support for R5F61658MN50FPV 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/1658M Group, including R5F61658MN50FPV, was designed for deterministic real-time control in factory automation equipment - emphasizing high-integration, Flash reliability, and peripheral co-processing to reduce external component count.

FAQ

What is the maximum operating frequency of the R5F61658MN50FPV?

The R5F61658MN50FPV supports a maximum CPU clock frequency of 40 MHz, achieved using the on-chip PLL with an external crystal (1–10 MHz) or CMOS clock source. This frequency is guaranteed across the full −40 °C to +85 °C temperature range and 3.0 V to 3.6 V supply voltage, as verified in the H8SX/1658M Group Hardware Manual Rev. 2.00. The R5F61658MN50FPV maintains instruction timing consistency at this speed, enabling predictable worst-case execution time analysis for safety-critical loops.

Does the R5F61658MN50FPV support in-system programming (ISP)?

Yes, the R5F61658MN50FPV supports in-system programming via its on-chip Flash memory using the built-in boot ROM and SCI interface. Firmware updates can be performed without removing the device from the target board, using standard UART commands defined in the Renesas Flash Programming Specification. The R5F61658MN50FPV implements dual-bank Flash architecture, allowing safe background programming while executing from the active bank - a key requirement for zero-downtime field upgrades.

What peripheral modules are integrated into the R5F61658MN50FPV?

The R5F61658MN50FPV integrates a 16-channel 16-bit Timer Pulse Unit (TPU), four Serial Communications Interfaces (SCI) supporting UART and LIN protocols, one I²C bus interface, a 12-bit ADC with 16 channels, a Data Transfer Controller (DTC), Watchdog Timer (WDT), and Clock Pulse Generator (CPG) with PLL. These peripherals are tightly coupled to the H8SX CPU core and share memory-mapped registers - enabling efficient real-time control tasks such as PWM waveform generation, encoder position capture, and sensor data acquisition without CPU overhead. All are documented in the R5F61658MN50FPV Hardware Manual.

Is the R5F61658MN50FPV pin-compatible with other H8SX/1658M series devices?

The R5F61658MN50FPV uses a 100-pin LQFP package with a fixed pin assignment defined in the H8SX/1658M Group Hardware Manual. Devices sharing the same package (e.g., R5F61654MN50FPV and R5F61653MN50FPV) maintain identical pinouts for power, ground, reset, clock, and core peripheral signals - enabling PCB reuse across memory/feature variants. However, some TPU and ADC channel pins differ between models; the R5F61658MN50FPV pinout must be verified against its specific signal list before layout reuse.

What is the Flash endurance and data retention specification for the R5F61658MN50FPV?

The R5F61658MN50FPV specifies 10,000 write/erase cycles for its on-chip Flash memory and guarantees data retention of 20 years at +85 °C or 100 years at +25 °C. Each Flash block includes ECC circuitry for single-bit correction and double-bit detection, preventing undetected corruption during field operation. These values are measured per JEDEC JESD22-A117 and confirmed in Renesas qualification reports for the H8SX/1658M Group - critical for applications requiring frequent firmware updates or parameter storage like the R5F61658MN50FPV.