Renesas DS70850AN80FPV

Overview

DS70850AN80FPV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7085 subgroup of the SH7080 family, featuring the SuperH™ CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including CPG, INTC, UBC, and serial interfaces. It operates at up to 40 MHz and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the DS70850AN80FPV datasheet, DS70850AN80FPV pinout, DS70850AN80FPV application, or DS70850AN80FPV equivalent, key selection criteria include its 80-pin LQFP package, 3.3 V single-supply operation, Flash memory endurance (10,000 write/erase cycles), on-chip debug support via UBC, and compliance with industrial temperature range (−40°C to +85°C).

Technical Context

The DS70850AN80FPV implements the SuperH RISC engine core with 32-bit data path, 32 general-purpose registers, and 16-bit fixed-length instruction encoding. It supports four MCU operating modes (including Single Chip Mode) and features a programmable Clock Pulse Generator (CPG) with FRQCR register-controlled frequency division and oscillator stop detection.

Its interrupt architecture includes a dedicated Interrupt Controller (INTC) supporting 64 interrupt sources with priority levels managed by IPR registers, and a User Break Controller (UBC) with dual-breakpoint capability for non-intrusive debugging. The device uses memory-mapped I/O and reserves specific address ranges for peripheral modules, with strict prohibition on access to reserved addresses.

Key Specifications

Pinout & Package

DS70850AN80FPV is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm lead pitch) with exposed thermal pad. Pin functions are defined per SH7085 Group specification, including dedicated reset, clock input (EXTAL/XTAL), and multiplexed I/O grouped into ports P0–P15.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.

Compared with DS70850AN80FPV, R5F7085A0N80FPV and SH7085A0N80FPV share identical core architecture, memory resources, pinout, and peripheral sets-differences are purely nomenclatural and reflect Renesas' evolving part-numbering conventions across product lifecycle phases.

Availability

DS70850AN80FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation HMIs, and energy meter data loggers requiring stable component supply across multi-year production cycles.

Supply support for DS70850AN80FPV 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, and power solutions for industrial, automotive, and infrastructure markets.

The SH7080 Group-including DS70850AN80FPV-is designed for cost-sensitive, high-reliability industrial embedded applications demanding real-time determinism, on-chip Flash flexibility, and robust debug capabilities without external tooling.

FAQ

What is the maximum operating frequency of the DS70850AN80FPV?

The DS70850AN80FPV operates at a maximum frequency of 40 MHz. This speed is achieved using the on-chip Clock Pulse Generator (CPG) with an external crystal (1–20 MHz) and internal frequency dividers. The 40 MHz limit defines the upper bound for instruction execution rate, peripheral timing budgets, and interrupt response latency in real-time applications.

Does the DS70850AN80FPV support in-circuit debugging without external tools?

Yes, the DS70850AN80FPV integrates a User Break Controller (UBC) with two independent hardware breakpoints, enabling non-intrusive instruction and data access debugging directly on the target board. This eliminates the need for external JTAG emulators during development and field validation of DS70850AN80FPV-based systems.

What memory resources are integrated into the DS70850AN80FPV?

The DS70850AN80FPV includes 512 KB of on-chip Flash memory rated for 10,000 write/erase cycles and 32 KB of SRAM. These resources support standalone firmware execution, bootloader storage, and real-time data buffering without external memory interfaces-critical for compact, cost-optimized DS70850AN80FPV designs.

Is the DS70850AN80FPV suitable for industrial temperature environments?

Yes, the DS70850AN80FPV is specified for operation from −40°C to +85°C and classified as a Standard-grade Renesas product. Its qualification covers industrial equipment such as PLCs, HMIs, and energy meters where ambient thermal stress and long-term reliability are mandatory requirements for DS70850AN80FPV deployment.

What package type does the DS70850AN80FPV use?

The DS70850AN80FPV is packaged in an 80-pin LQFP (12 mm × 12 mm, 0.5 mm lead pitch) with exposed thermal pad. This package supports standard surface-mount assembly processes and provides sufficient I/O density for industrial interface requirements while maintaining thermal performance within datasheet limits for DS70850AN80FPV applications.