Renesas DS61650CN50FPV

Overview

DS61650CN50FPV from Renesas Electronics is a 32-bit CISC microcontroller in the H8SX/1650 Group, featuring an H8SX CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including TPU, SCI, WDT, and PPG. It operates at up to 40 MHz, supports 3.3 V single-supply operation, and targets industrial control and embedded automation applications requiring deterministic real-time response.

For engineers reviewing the DS61650CN50FPV datasheet, DS61650CN50FPV pinout, DS61650CN50FPV application, or DS61650CN50FPV equivalent, key selection criteria include its 120-pin LQFP package, 40 MHz max CPU clock, Flash endurance of 10,000 write/erase cycles, support for IEEE 802.3-compliant Ethernet MAC interface via external PHY, and compliance with Renesas Standard quality grade for industrial equipment.

Technical Context

The DS61650CN50FPV implements the H8SX CPU core with 32-bit internal data paths, 24-bit address space, and instruction set compatibility with earlier H8S devices. It integrates a Clock Pulse Generator (CPG) supporting PLL-based clock multiplication, a Bus State Controller (BSC) for external bus interfacing, and a Data Transfer Controller (DTC) enabling autonomous memory-to-peripheral transfers without CPU intervention.

Its peripheral suite includes four 16-bit Timer Pulse Units (TPU) with PWM and input capture capability, two Serial Communication Interfaces (SCI) supporting asynchronous and LIN modes, a Watchdog Timer (WDT) with windowed operation, and a Programmable Pulse Generator (PPG) for precise waveform synthesis - all accessible via memory-mapped I/O registers with interrupt vectoring through the INTC module.

Key Specifications

Pinout & Package

DS61650CN50FPV is housed in a 120-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow Renesas H8SX/1650 Group standard layout, supporting multiplexed functions across port pins and dedicated power/ground distribution for noise suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS61650CN50FPV, R5F61650CNEFP offers identical architecture and footprint at lower memory density, while R7F7010233AFP represents a next-generation platform with higher ASIL readiness but incompatible peripherals and package - making DS61650CN50FPV optimal for legacy industrial motion and I/O control upgrades.

Availability

DS61650CN50FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation motion controllers, test equipment signal generators, and embedded HMI controllers requiring stable component supply across multi-year production cycles.

Supply support for DS61650CN50FPV 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/1650 Group, including DS61650CN50FPV, was designed for deterministic real-time embedded control in industrial automation, test instrumentation, and factory machinery - emphasizing peripheral integration, Flash reliability, and long-term supply stability.

FAQ

What is the maximum operating frequency of the DS61650CN50FPV?

The DS61650CN50FPV supports a maximum CPU operating frequency of 40 MHz, achieved using the on-chip PLL with external crystal input (1–20 MHz range). This frequency enables instruction execution times as low as 25 ns per cycle for critical real-time loops, and is validated across the full −40°C to +85°C temperature range per Renesas Electrical Characteristics specifications.

Does the DS61650CN50FPV support in-application programming (IAP) of its Flash memory?

Yes, the DS61650CN50FPV supports in-application programming via its 512 KB on-chip Flash memory with Read-While-Write (RWW) capability. This allows firmware updates to execute concurrently with active application code - essential for fail-safe over-the-air updates in industrial controllers. The Flash is rated for 10,000 write/erase cycles and includes hardware error correction for enhanced data integrity.

What peripheral interfaces are integrated into the DS61650CN50FPV?

The DS61650CN50FPV integrates multiple peripherals including four 16-bit Timer Pulse Units (TPU) with PWM and input capture, two Serial Communication Interfaces (SCI) supporting UART and LIN 2.1, a Watchdog Timer (WDT) with windowed operation, a Programmable Pulse Generator (PPG), a Data Transfer Controller (DTC), and a Clock Pulse Generator (CPG). These are accessed via memory-mapped registers and support interrupt-driven or DTC-assisted operation.

Is the DS61650CN50FPV pin-compatible with other H8SX/1650 Group microcontrollers?

Yes, the DS61650CN50FPV shares the same 120-pin LQFP package and pin assignment as other members of the H8SX/1650C subgroup, including R5F61650CNEFP and R5F61650CNFP. Pin compatibility extends to power, clock, reset, and all multiplexed I/O functions - enabling drop-in replacement within the same subgroup when memory or feature requirements change.

What quality grade is assigned to the DS61650CN50FPV, and what applications is it rated for?

The DS61650CN50FPV is classified as Renesas "Standard" quality grade, certified for use in industrial robots, test and measurement equipment, office automation, audiovisual systems, and machine tools. It is not qualified for automotive, medical life-support, or aerospace applications - those require explicit "High Quality" or "Specific" grade parts with additional qualification testing and documentation.