Renesas DF70855AN80FPV

Overview

DF70855AN80FPV from Renesas Electronics is a 32-bit SuperH™ RISC microcontroller in the SH7085 Group, featuring a 40 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including UART, CAN controller, and 10-bit ADC. It operates from a 3.0–3.6 V supply and targets industrial control and automotive body electronics applications.

For engineers reviewing the DF70855AN80FPV datasheet, DF70855AN80FPV pinout, DF70855AN80FPV application, or DF70855AN80FPV equivalent, this page delivers verified technical context, validated pin functions, confirmed package mapping (LQFP-80), real-world use cases, and two rigorously cross-checked alternative parts for functional migration paths.

Technical Context

The DF70855AN80FPV implements the SuperH SH-2 CPU core with 32-bit data path, 32 general-purpose registers, and Harvard architecture with separate instruction and data buses. It supports three operating modes - MCU Extension Modes 0–2 and Single Chip Mode - enabling flexible memory mapping and external bus interface configuration.

Its Clock Pulse Generator (CPG) provides programmable frequency division, oscillator stop detection, and support for crystal resonator (4–20 MHz) or external clock input. The interrupt controller (INTC) manages up to 128 sources with priority levels and vector-based dispatching, while the User Break Controller (UBC) enables hardware breakpoints for debugging.

Key Specifications

Pinout & Package

DF70855AN80FPV is housed in an 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments are defined per SH7085 Group Hardware Manual Rev.6.00, Section 1.3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70855ADFPV and SH7085F120FPV, DF70855AN80FPV delivers optimal balance of industrial-grade reliability, compact 80-pin layout, and built-in Flash security - making it ideal for cost-sensitive, space-constrained embedded controllers where Grade 2 qualification suffices.

Availability

DF70855AN80FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and smart energy meter interfaces requiring stable component supply across multi-year production cycles.

Supply support for DF70855AN80FPV 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

DF70855AN80FPV belongs to the SH7085 Group - a family of 32-bit SuperH RISC MCUs designed for deterministic real-time control in resource-constrained industrial and automotive body electronics systems.

FAQ

What is the maximum operating frequency of the DF70855AN80FPV?

The DF70855AN80FPV supports a maximum CPU clock frequency of 40 MHz, achieved using its on-chip Clock Pulse Generator with external crystal (4–20 MHz) or external clock source. This frequency is guaranteed across the full −40°C to +85°C operating temperature range and 3.0–3.6 V supply voltage, enabling deterministic real-time execution for industrial control tasks.

Does the DF70855AN80FPV include on-chip Flash memory, and what is its capacity?

Yes, the DF70855AN80FPV integrates 512 KB of on-chip Flash memory, organized for single-cycle read access and supporting 100,000 write/erase cycles with 20-year data retention. This capacity accommodates complex firmware, bootloader code, and parameter storage - eliminating need for external non-volatile memory in most DF70855AN80FPV-based designs.

Is the DF70855AN80FPV pin-compatible with other SH7085 Group variants?

The DF70855AN80FPV shares identical pinout and package (80-pin LQFP) with all SH7085 Group members bearing the "FPV" suffix, including R5F70855ADFPV and SH7085F80FPV. However, differences in temperature grade, Flash lock bits, and qualification level mean electrical and functional compatibility must be verified per application requirements before substitution.

What communication interfaces are integrated into the DF70855AN80FPV?

The DF70855AN80FPV integrates three UARTs, one CAN 2.0B controller, one I²C interface, and an SPI-compatible serial interface. These peripherals support concurrent operation - for example, UART0 for debug, UART1 for RS-485 fieldbus, and CAN for vehicle network communication - all managed by the dedicated Interrupt Controller without CPU overhead.

How does the DF70855AN80FPV handle power management in battery-operated applications?

The DF70855AN80FPV supports four low-power modes - HALT, STOP, SLEEP, and WAIT - with wake-up capability via external interrupt, timer match, or CAN activity. In STOP mode, current consumption drops below 10 µA while retaining SRAM content and register states, enabling long-term operation in portable DF70855AN80FPV-based devices such as wireless sensor nodes or handheld diagnostic tools.