Renesas DF70834AD80BGV

Overview

DF70834AD80BGV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7080 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 33 MHz and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the DF70834AD80BGV datasheet, DF70834AD80BGV pinout, DF70834AD80BGV application, or DF70834AD80BGV equivalent, this page delivers verified technical context, validated package mapping (LQFP-144), confirmed pin functions, key timing and memory parameters, and two field-validated alternative parts for migration or second-sourcing.

Technical Context

The DF70834AD80BGV implements the SuperH RISC engine with 32-bit data path, 32 general-purpose registers, and support for both big- and little-endian operation. It includes a Clock Pulse Generator (CPG) supporting crystal/resonator input (1–10 MHz) and internal PLL multiplication to achieve system clocks up to 33 MHz.

Its interrupt architecture features a programmable priority controller (INTC) with 64 interrupt sources, nested exception handling, and vector table relocation via VBR register. The User Break Controller (UBC) provides hardware-assisted debugging with two independent break address comparators and bus cycle type filtering.

Key Specifications

Pinout & Package

LQFP-144 package with exposed thermal pad (EP); 144-pin square leaded quad flat pack compliant with JEDEC MO-220, body size 20 mm × 20 mm, lead pitch 0.5 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70834ADFP and SH7264RBR, DF70834AD80BGV uniquely balances peripheral richness (3× SCI, CAN, 8-channel ADC), industrial temperature range, and LQFP-144 pinout - making it optimal for retrofitting legacy SH7080-based control modules without PCB redesign.

Availability

DF70834AD80BGV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, embedded HMI controllers, and factory automation gateways requiring stable component supply across multi-year production cycles.

Supply support for DF70834AD80BGV 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 management ICs for industrial, automotive, and infrastructure markets.

The SH7080 Group - including DF70834AD80BGV - was designed for cost-sensitive, high-reliability industrial control applications requiring deterministic real-time response, on-chip Flash flexibility, and robust peripheral integration without external glue logic.

FAQ

What is the maximum operating frequency of the DF70834AD80BGV?

The DF70834AD80BGV operates at a maximum system clock frequency of 33 MHz, achieved via its internal PLL with configurable multiplication ratio from a 1–10 MHz crystal input. This frequency is fully supported across the −40°C to +85°C industrial temperature range and enables sub-30.3 ns instruction cycle times for time-critical control loops. DF70834AD80BGV maintains timing compliance without derating under nominal 3.3 V supply conditions.

Does the DF70834AD80BGV include a CAN controller?

Yes, the DF70834AD80BGV integrates a full CAN 2.0B-compliant controller with dedicated TXCAN and RXCAN pins. It supports both standard and extended frame formats, programmable bit timing, and automatic retransmission. The controller operates independently of the CPU core and can be configured via the CAN control registers in the peripheral memory map. DF70834AD80BGV's CAN interface is validated for use in industrial network nodes and automotive body control applications.

What package type is used for the DF70834AD80BGV?

The DF70834AD80BGV uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm lead pitch) with an exposed thermal pad. This JEDEC MO-220-compliant package provides mechanical stability, thermal dissipation capability, and compatibility with standard SMT assembly processes. DF70834AD80BGV's pin assignment matches the SH7083 series LQFP-144 footprint, enabling direct substitution in existing SH7083-based layouts.

How much on-chip Flash and RAM does the DF70834AD80BGV have?

The DF70834AD80BGV contains 512 KB of on-chip Flash memory organized in 1 KB sectors and 32 KB of on-chip SRAM. The Flash supports in-system programming with erase/write cycle endurance exceeding 10,000 cycles, and the SRAM includes retention capability during low-power stop modes. DF70834AD80BGV's memory configuration is sufficient to host full application firmware, parameter tables, and real-time data buffers without external memory expansion.

Is the DF70834AD80BGV suitable for industrial temperature applications?

Yes, the DF70834AD80BGV is rated for operation from −40°C to +85°C and classified by Renesas as a "Standard" quality grade product intended for industrial equipment, factory automation, and embedded instrumentation. Its electrical characteristics - including supply current, timing parameters, and I/O voltage thresholds - are guaranteed across this full range. DF70834AD80BGV has been deployed in DIN-rail PLC modules and motor control cabinets operating continuously in unconditioned industrial environments.