Renesas DF71474BJ80FPV

Overview

DF71474BJ80FPV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7147 Group, featuring the SuperH™ CPU core, 4 MB on-chip ROM, 256 KB RAM, and integrated peripherals including CPG, DMAC, SCI, and CAN controller. It operates at up to 80 MHz with 3.3 V supply and supports single-chip mode for embedded control in industrial automation and motor drive systems.

For engineers reviewing the DF71474BJ80FPV datasheet, DF71474BJ80FPV pinout, DF71474BJ80FPV application, or DF71474BJ80FPV equivalent, key selection criteria include clock frequency (80 MHz), memory configuration (4 MB ROM / 256 KB RAM), CAN 2.0B compliance, operating voltage (3.3 V ±10%), and industrial-grade temperature range (–40°C to +85°C).

Technical Context

The DF71474BJ80FPV implements the SH-2 CPU architecture with 16 general-purpose 32-bit registers, 32-bit address/data bus, and support for big-endian memory mapping. It integrates a Clock Pulse Generator (CPG) with PLL for internal clock synthesis from external crystal (4–20 MHz) or oscillator input.

Exception handling includes 128-vector interrupt table, power-on/manual reset with watchdog timer, and address error detection. The device supports three MCU operating modes: MCU Extension Mode 0/2 and Single Chip Mode, with configurable address map and boot vector selection.

Key Specifications

Pinout & Package

DF71474BJ80FPV is housed in a 388-pin Fine-Pitch Ball Grid Array (FPBGA) package with 292 user I/O pins, 1.0 mm ball pitch, and exposed thermal pad for enhanced heat dissipation in high-clock-frequency applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F71474BFPV, DF71474BJ80FPV delivers 25% higher clock throughput and full peripheral bandwidth utilization; versus SH7269R501V, it retains legacy SH-2 binary compatibility and larger on-chip memory for monolithic firmware deployment.

Availability

DF71474BJ80FPV is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and energy metering gateways requiring stable component supply across extended production lifecycles.

Supply support for DF71474BJ80FPV 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.

The SH7147 Group, including DF71474BJ80FPV, was designed for high-integration embedded control in industrial automation, motor drives, and real-time networked systems requiring deterministic timing and on-chip memory scalability.

FAQ

What is the maximum operating frequency of the DF71474BJ80FPV?

The DF71474BJ80FPV operates at a maximum CPU clock frequency of 80 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL synthesizing from an external 4–20 MHz crystal or oscillator input. This frequency is fully supported across the industrial temperature range (–40°C to +85°C) and defines the real-time performance ceiling for interrupt response and computational throughput in applications such as motor control and PLC execution.

Does the DF71474BJ80FPV include on-chip flash or ROM memory?

Yes, the DF71474BJ80FPV integrates 4 MB of on-chip ROM and 256 KB of RAM. The ROM is mask-programmed during fabrication and serves as non-volatile program storage, eliminating the need for external boot memory in single-chip mode. This configuration supports monolithic firmware deployment and enhances system security and boot reliability in industrial environments.

Is the DF71474BJ80FPV pin-compatible with other SH7147 Group members?

Yes, the DF71474BJ80FPV shares the same FPBGA-388 package and pin assignment with other SH7147 Group variants including R5F71474BFPV and R5F71472BFPV. Pin-to-pin compatibility extends to all power, clock, reset, peripheral interface, and general-purpose I/O signals, enabling hardware reuse across speed-binned and memory-configured variants within the same family.

What communication interfaces are integrated into the DF71474BJ80FPV?

The DF71474BJ80FPV integrates a CAN 2.0B controller with 32 message buffers, three independent Serial Communication Interfaces (SCI) supporting asynchronous communication up to 2 Mbps, and a DMA controller with four channels. These interfaces enable robust fieldbus connectivity, debug/monitoring ports, and high-efficiency peripheral data transfers without CPU intervention.

What is the operating voltage range for the DF71474BJ80FPV?

The DF71474BJ80FPV operates from a single 3.3 V supply with a tolerance of ±10%, i.e., 2.97 V to 3.63 V. This voltage powers both core logic and I/O circuits, and the device includes internal voltage regulation and brown-out detection to ensure reliable operation during supply transients common in industrial power environments.