Renesas DF70835AN80BGV

Overview

DF70835AN80BGV 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 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 DF70835AN80BGV datasheet, DF70835AN80BGV pinout, DF70835AN80BGV application, or DF70835AN80BGV equivalent, key selection criteria include Flash/RAM capacity, clock frequency support, interrupt controller priority handling, and package compatibility with 128-pin LQFP footprint.

Technical Context

The DF70835AN80BGV implements the SuperH RISC engine architecture with 32-bit data path, 32 general-purpose registers, and support for both big- and little-endian operation modes. Its Clock Pulse Generator (CPG) enables programmable frequency division and oscillator stop detection, while the Interrupt Controller (INTC) provides 64 interrupt sources with configurable priority levels and vector-based dispatching.

It includes a User Break Controller (UBC) with dual address/data break points, supporting non-intrusive debugging in production firmware. The device supports four MCU operating modes-including Single Chip Mode-and features an on-chip power-on reset circuit with voltage monitoring and external manual reset input.

Key Specifications

Pinout & Package

DF70835AN80BGV is housed in a 128-pin LQFP package with exposed thermal pad. Pin assignments follow the SH7083 group layout, supporting multiplexed functions across port pins including address/data bus, serial interfaces (SCI, CAN), analog inputs (ADC), and timer I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF70835AN80BGV, R5F70835ADFP offers expanded peripheral count at the cost of board space, while SH7083S trades memory size and debug features for lower unit cost - making DF70835AN80BGV the balanced choice for new designs needing full SH7083 functionality in compact form factor.

Availability

DF70835AN80BGV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation controllers, and embedded test instruments requiring stable component supply across multi-year production cycles.

Supply support for DF70835AN80BGV 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 SH7083 group - including DF70835AN80BGV - was designed for deterministic real-time control in resource-constrained industrial equipment, emphasizing low-latency interrupt response, on-chip memory integration, and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency of the DF70835AN80BGV?

The DF70835AN80BGV operates at a maximum system clock frequency of 40 MHz. This frequency is achieved using the on-chip Clock Pulse Generator (CPG) with external crystal or clock input, and defines the upper limit for instruction execution speed and peripheral timing accuracy. All electrical characteristics in the SH7080 Group Hardware Manual are specified under this condition, and exceeding it may result in undefined behavior or timing violations.

Does the DF70835AN80BGV support CAN communication?

No, the DF70835AN80BGV does not integrate a CAN controller. While the broader SH7083 group includes CAN-capable variants such as R5F70835ADFP, the DF70835AN80BGV variant omits the CAN module per its pin assignment and functional block diagram in the SH7080 Group Hardware Manual Rev.6.00. Engineers requiring CAN must select alternate SH7083 family members explicitly listing CAN in their peripheral set.

What debug capabilities does the DF70835AN80BGV provide?

The DF70835AN80BGV includes a User Break Controller (UBC) with two independent hardware breakpoints (A and B), each supporting address matching, data value comparison, and bus cycle type filtering. These features enable non-intrusive run-time inspection of code execution and memory access without requiring JTAG emulation hardware, making DF70835AN80BGV suitable for in-field firmware validation and production diagnostics.

Is the DF70835AN80BGV pin-compatible with other SH7083 family members?

The DF70835AN80BGV shares the same 128-pin LQFP package and core pinout as other SH7083 variants in that footprint, including identical power, clock, reset, and basic I/O pin locations. However, peripheral-specific pins (e.g., SCI, ADC, timer outputs) may differ in function assignment between variants - so direct pin-for-pin replacement requires verification against each device's specific pin function table in the hardware manual.

What is the Flash endurance specification for the DF70835AN80BGV?

The DF70835AN80BGV specifies 10,000 write/erase cycles for its 512 KB on-chip Flash memory, as documented in the Electrical Characteristics section of the SH7080 Group Hardware Manual Rev.6.00. Each sector can be erased independently, and data retention is guaranteed for 20 years at 85°C ambient temperature - supporting long-life firmware updates in industrial deployments without external nonvolatile memory.