Renesas DF70834AD80BGV#ZB

Overview

DF70834AD80BGV#ZB from Renesas Electronics is a 32-bit RISC microcontroller in the SH7083 subgroup of the SH7080 family, featuring the SuperH™ CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including CPG, INTC, UBC, and multiple 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#ZB datasheet, DF70834AD80BGV#ZB pinout, DF70834AD80BGV#ZB application, or DF70834AD80BGV#ZB equivalent, key selection criteria include its 80-pin LQFP package, 3.3 V single-supply operation, 33 MHz max CPU clock, Flash write/erase endurance (10,000 cycles), and support for single-chip and MCU extension operating modes.

Technical Context

The DF70834AD80BGV#ZB implements the SuperH RISC engine with 32-bit general-purpose registers, 16-bit instruction word length, and five addressing modes. Its Clock Pulse Generator supports crystal/resonator input (1–10 MHz) and internal frequency division to generate system clocks up to 33 MHz.

Exception handling includes power-on reset, manual reset, address error detection, and prioritized interrupt vectors managed by the on-chip Interrupt Controller (INTC). The User Break Controller provides hardware breakpoint support for debugging via two independent break address units with maskable bus cycle and data conditions.

Key Specifications

Pinout & Package

DF70834AD80BGV#ZB is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm lead pitch) with exposed thermal pad. Pin functions are defined across four dedicated groups: power/ground (VCC, VSS), clock (EXTAL, XTAL), reset (RES#), and multifunction I/O (e.g., P0–P15, AD0–AD7, SCK, SIN, SOUT).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70834ADFP#30 and SH7083S, DF70834AD80BGV#ZB delivers optimal balance of debug readiness (via UBC), memory capacity (512 KB Flash), and footprint compatibility (80-pin LQFP), making it preferred for new industrial control designs requiring field-upgradable firmware and deterministic timing.

Availability

DF70834AD80BGV#ZB is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation HMIs, embedded power meters, test & measurement loggers, and motor drive controllers requiring stable component supply across multi-year production cycles.

Supply support for DF70834AD80BGV#ZB 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7080 Group - including DF70834AD80BGV#ZB - was designed for deterministic real-time control in cost-sensitive industrial equipment, emphasizing on-chip integration, debug robustness, and long-lifecycle support.

FAQ

What is the maximum CPU clock frequency supported by DF70834AD80BGV#ZB?

The DF70834AD80BGV#ZB supports a maximum CPU clock frequency of 33 MHz. This value is achieved using the on-chip Clock Pulse Generator (CPG) with an external 1–10 MHz crystal resonator and internal frequency multiplication. Operation above 33 MHz is not permitted and may cause timing violations or functional failure. The DF70834AD80BGV#ZB datasheet specifies this limit under DC and AC characteristics in Section 8.

Does DF70834AD80BGV#ZB include on-chip Flash memory, and what is its endurance rating?

Yes, DF70834AD80BGV#ZB integrates 512 KB of on-chip Flash memory for program and data storage. Its specified endurance is 10,000 write/erase cycles per sector, with data retention guaranteed for 20 years at 85°C. This Flash supports in-application programming (IAP) without external high-voltage supplies, enabling field firmware updates. The DF70834AD80BGV#ZB hardware manual documents sector organization and timing requirements in Section 4.4.

What debug features does DF70834AD80BGV#ZB provide for firmware development?

DF70834AD80BGV#ZB includes a dedicated User Break Controller (UBC) with two independent hardware breakpoint units. Each supports address matching with maskable bits, bus-cycle type filtering (read/write/instruction), and optional data-value comparison (in F-ZTAT variants). These features enable precise code halting and trace without performance impact. The DF70834AD80BGV#ZB UBC register map and usage notes are detailed in Section 7 of the hardware manual.

Is DF70834AD80BGV#ZB pin-compatible with other SH7083-series microcontrollers?

No, DF70834AD80BGV#ZB is not universally pin-compatible across all SH7083 variants. While it shares the 80-pin LQFP footprint with some members (e.g., SH7083S), differences in peripheral mapping, power pin allocation, and reset behavior require verification against each specific variant's pin assignment table. The DF70834AD80BGV#ZB pin functions are defined in Section 1.3 of the SH7080 Group Hardware Manual Rev. 6.00.

What operating temperature range is DF70834AD80BGV#ZB qualified for?

DF70834AD80BGV#ZB is qualified for operation from −40°C to +85°C, meeting Renesas Electronics' Standard quality grade for industrial applications. This range is validated per JEDEC JESD22-A104 and JESD22-A108 reliability testing. The DF70834AD80BGV#ZB electrical characteristics table (Section 8) lists parameter limits across this full range, including supply current, timing, and ADC accuracy.