Renesas DF70834AN80FTV

Overview

DF70834AN80FTV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7083 group, featuring the SuperH™ CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including UART, CAN, I²C, and 12-bit ADC. It operates at up to 40 MHz and targets industrial control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the DF70834AN80FTV datasheet, DF70834AN80FTV pinout, DF70834AN80FTV application, or DF70834AN80FTV equivalent, key selection criteria include its 80-pin LQFP package, CAN 2.0B interface support, 12-bit ADC with 16 channels, Flash endurance of 10,000 write/erase cycles, and compliance with industrial temperature range (−40°C to +85°C).

Technical Context

The DF70834AN80FTV implements the SuperH RISC engine with 32-bit data path and 32-bit address space, supporting both big- and little-endian operation modes. Its clock pulse generator (CPG) enables flexible frequency synthesis via PLL and prescaler configurations, with external crystal (1–20 MHz) or clock input support.

Interrupt handling is managed by a dedicated INTC with 64 vector sources, priority encoding, and nested interrupt capability. The on-chip user break controller (UBC) provides hardware-assisted debugging with two independent break points, each configurable for address, data, and bus cycle conditions.

Key Specifications

Pinout & Package

DF70834AN80FTV is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per SH7083 Group Hardware Manual Rev.6.00, Section 1.3 (Pin Assignments) and Section 1.4 (Pin Functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70834AN80FB and SH7083S, DF70834AN80FTV offers verified 10,000 Flash endurance, full industrial temperature qualification, and current production status-making it the preferred choice for long-lifecycle embedded systems requiring field firmware updates.

Availability

DF70834AN80FTV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automated test equipment, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for DF70834AN80FTV 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 automotive, industrial, and IoT applications.

The SH7083 group-including DF70834AN80FTV-is designed for deterministic real-time control in industrial automation, offering integrated CAN, ADC, and Flash memory optimized for field-deployable embedded systems.

FAQ

What is the maximum operating frequency of the DF70834AN80FTV?

The DF70834AN80FTV operates at a maximum CPU frequency of 40 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL support. This frequency is sustained across the full industrial temperature range (−40°C to +85°C) when powered from a stable 3.3 V supply and using a validated external crystal or clock source per Section 4.6 of the SH7080 Group Hardware Manual.

Does the DF70834AN80FTV support CAN FD or only classical CAN 2.0B?

The DF70834AN80FTV supports only CAN 2.0B (ISO 11898-1), not CAN FD. Its dual CAN controllers implement full mailbox-based message handling, error confinement, and bit rates up to 1 Mbit/s-but lack the variable data length, higher bit rates, and CRC enhancements defined in CAN FD. This is confirmed in Section 6.4.2 of the hardware manual, which lists CAN as "Controller Area Network (CAN 2.0B compatible)."

What is the Flash memory endurance specification for DF70834AN80FTV?

The DF70834AN80FTV specifies 10,000 write/erase cycles for its 512 KB on-chip Flash memory, as documented in the Electrical Characteristics section (Section 8) of the SH7080 Group Hardware Manual Rev.6.00. This endurance rating applies under standard industrial operating conditions and is validated for the DF70834AN80FTV variant specifically-not extrapolated from earlier SH7083 mask revisions.

Is the DF70834AN80FTV pin-compatible with other SH7083 family members like R5F70834AN80FB?

Yes, DF70834AN80FTV is pin-compatible with R5F70834AN80FB: both use the identical 80-pin LQFP package, share the same pin assignments (Section 1.3), and maintain identical electrical characteristics and register maps. The sole differences are in part marking and packaging format-making them functionally interchangeable on the same PCB layout.

Does DF70834AN80FTV include hardware floating-point support?

No, the DF70834AN80FTV does not include a hardware floating-point unit (FPU). Its SuperH SH-2 core executes all arithmetic operations-including IEEE 754 single-precision calculations-in software using integer ALU resources. Floating-point performance depends on compiler-optimized library routines, and no FPU-related registers or instructions are defined in the CPU architecture description (Section 2 of the manual).