Renesas DF70854AD80FPV#ZB

Overview

DF70854AD80FPV#ZB from Renesas Electronics is a 32-bit RISC microcontroller in the SH7085 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 40 MHz, supports single-chip mode, and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the DF70854AD80FPV#ZB datasheet, DF70854AD80FPV#ZB pinout, DF70854AD80FPV#ZB application, or DF70854AD80FPV#ZB equivalent, key selection criteria include its 128-pin LQFP package, 3.3 V supply operation, Flash endurance (10,000 write/erase cycles), on-chip debug support via UBC, and compatibility with SH-2 instruction set architecture.

Technical Context

The DF70854AD80FPV#ZB implements the SH-2 CPU core with 32-bit data/address buses, five-stage pipeline execution, and hardware multiply/divide units. It integrates a Clock Pulse Generator (CPG) supporting crystal/resonator and external clock inputs, programmable frequency division, and oscillator stop detection.

Its interrupt subsystem includes a 16-level priority Interrupt Controller (INTC) with 64 interrupt sources - 16 external IRQ pins and 48 on-chip peripheral interrupts - and supports vectorized exception handling with configurable base address via VBR register.

Key Specifications

Pinout & Package

DF70854AD80FPV#ZB is housed in a 128-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per SH7085 Group specification, including dedicated power/ground pairs, 16 external IRQ inputs, 8-channel 10-bit ADC input pins, and multiplexed serial interface signals (SCI, CAN, I²C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70854ADFPV#30 and SH7085D50FPV, DF70854AD80FPV#ZB provides assured industrial-temperature supply continuity, retains full debug capability via UBC, and avoids EOL risk while delivering sufficient performance for deterministic control loops below 40 MHz.

Availability

DF70854AD80FPV#ZB is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, building automation gateways, and test & measurement instruments requiring stable component supply across multi-year production cycles.

Supply support for DF70854AD80FPV#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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7080 Group - including DF70854AD80FPV#ZB - was designed for cost-sensitive, real-time embedded control applications demanding high interrupt responsiveness, on-chip memory integration, and robust debug infrastructure in industrial environments.

FAQ

What is the maximum operating frequency of the DF70854AD80FPV#ZB?

The DF70854AD80FPV#ZB operates at a maximum frequency of 40 MHz. This rating is validated across the full −40°C to +85°C temperature range and 3.3 V ±0.3 V supply voltage. The Clock Pulse Generator (CPG) supports configuration of internal PLL and divider ratios to achieve this frequency from crystal or external clock sources, with oscillator stop detection ensuring fail-safe behavior if the clock source fails.

Does the DF70854AD80FPV#ZB include on-chip Flash memory, and what is its endurance?

Yes, the DF70854AD80FPV#ZB integrates 512 KB of on-chip Flash memory organized in 1 KB sectors. Renesas specifies 10,000 write/erase cycles per sector and data retention of 20 years at +85°C. The Flash supports in-application programming (IAP) using a documented command sequence, enabling field firmware updates without external programming hardware - a key capability for DF70854AD80FPV#ZB-based remote devices.

What debug capabilities does the DF70854AD80FPV#ZB provide?

The DF70854AD80FPV#ZB includes a User Break Controller (UBC) with two independent break units (A and B), each supporting address matching, data value comparison, and bus cycle type filtering (e.g., read/write, instruction fetch). This allows non-intrusive code breakpoints, data watchpoints, and precise tracing of memory-mapped peripheral access - essential for validating real-time behavior in DF70854AD80FPV#ZB control applications.

Is the DF70854AD80FPV#ZB pin-compatible with other SH7085 variants?

Yes, the DF70854AD80FPV#ZB shares identical pin assignment and electrical characteristics with other SH7085 members in the 128-pin LQFP package, including R5F70854ADFPV#30 and SH7085D50FPV. All share the same signal mapping for power, clock, reset, IRQ, ADC, and serial interface pins - enabling direct substitution within the same PCB layout when thermal and temperature requirements align.

What peripheral interfaces are integrated into the DF70854AD80FPV#ZB?

The DF70854AD80FPV#ZB integrates a Clock Pulse Generator (CPG), 16-level Interrupt Controller (INTC), User Break Controller (UBC), 8-channel 10-bit ADC, multiple Serial Communication Interfaces (SCI), CAN controller, I²C bus interface, and timer modules (MTU, RTC). These peripherals are memory-mapped and accessible via the SH-2 bus architecture - providing a complete control-oriented subsystem without requiring external support ICs in DF70854AD80FPV#ZB designs.