Renesas DF70855AD80FPV#GZ

Overview

DF70855AD80FPV#GZ 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 and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the DF70855AD80FPV#GZ datasheet, DF70855AD80FPV#GZ pinout, DF70855AD80FPV#GZ application, or DF70855AD80FPV#GZ 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 JTAG, and compliance with industrial temperature range (−40°C to +85°C).

Technical Context

The DF70855AD80FPV#GZ implements the SuperH RISC engine v2 architecture with 32-bit data path, 32 general-purpose registers, and 16-bit fixed-length instructions. It supports four MCU operating modes (including Single Chip Mode) and features a programmable Clock Pulse Generator (CPG) with PLL for frequency synthesis from external crystal or clock input.

Its interrupt subsystem includes a 128-source Interrupt Controller (INTC) with priority encoding and vector table mapping, while the User Break Controller (UBC) provides hardware-assisted debugging with two independent break address comparators and bus cycle type filtering - critical for real-time firmware validation in safety-critical embedded systems.

Key Specifications

Pinout & Package

DF70855AD80FPV#GZ is housed in a 128-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the SH7085 Group standard layout defined in Section 1.3 of R01UH0198EJ0600 Rev. 6.00.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F70855ADFPV#30 and SH7269RBR, DF70855AD80FPV#GZ uniquely balances industrial temperature tolerance, integrated CAN, hardware debug capability, and compact 128-pin footprint - making it optimal for cost-constrained, safety-aware embedded controllers where upgrade path flexibility is limited.

Availability

DF70855AD80FPV#GZ is available at Aetrix Electronics and suitable for industrial PLC I/O modules, building automation controllers, motor drive interface boards, and energy meter data concentrators requiring stable component supply across extended product lifecycles.

Supply support for DF70855AD80FPV#GZ 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 SH7080 Group - including DF70855AD80FPV#GZ - was designed for deterministic real-time embedded control in industrial equipment, emphasizing robustness, on-chip debug, and peripheral integration to reduce system-level complexity.

FAQ

What is the maximum operating frequency of the DF70855AD80FPV#GZ?

The DF70855AD80FPV#GZ operates at a maximum CPU clock frequency of 40 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL. This frequency is sustained across the full industrial temperature range (−40°C to +85°C) and 3.3 V supply, as verified in Section 4.3 of the R01UH0198EJ0600 Rev. 6.00 hardware manual. The DF70855AD80FPV#GZ maintains consistent timing margins under worst-case voltage and temperature conditions.

Does the DF70855AD80FPV#GZ include a CAN controller?

Yes, the DF70855AD80FPV#GZ integrates a single CAN 2.0B-compliant controller supporting both standard and extended frame formats, with programmable bit timing and message object buffers. This peripheral is documented in Section 1.1 and Section 6.4.2 of the SH7080 Group Hardware Manual (R01UH0198EJ0600 Rev. 6.00). The DF70855AD80FPV#GZ uses dedicated CAN_TX and CAN_RX pins mapped to P13_0 and P13_1, respectively.

What debug interface does the DF70855AD80FPV#GZ support?

The DF70855AD80FPV#GZ supports IEEE 1149.1 JTAG for boundary-scan testing and on-chip debugging, with dedicated TD, TMS, TCK, TDI, and TDO pins. It also includes the User Break Controller (UBC) with dual hardware breakpoints for non-intrusive code execution control. These capabilities are detailed in Sections 6 and 7 of the R01UH0198EJ0600 Rev. 6.00 manual. The DF70855AD80FPV#GZ does not support SWD or cJTAG.

Is the DF70855AD80FPV#GZ qualified for industrial temperature operation?

Yes, the DF70855AD80FPV#GZ is specified for industrial temperature operation from −40°C to +85°C, as confirmed in the "Quality Grades" notice on page iii of R01UH0198EJ0600 Rev. 6.00 and electrical characteristics tables in Section 8. This qualification aligns with Renesas' "Standard" grade classification for industrial equipment, machine tools, and factory automation systems. The DF70855AD80FPV#GZ meets this specification without derating.

How much on-chip Flash and RAM does the DF70855AD80FPV#GZ provide?

The DF70855AD80FPV#GZ integrates 512 KB of on-chip Flash memory and 32 KB of RAM. Flash endurance is rated at 10,000 write/erase cycles, and RAM is SRAM with full-speed access synchronized to the CPU clock. These values are explicitly listed in Section 1.1 ("Features") and Section 8 ("Electrical Characteristics") of R01UH0198EJ0600 Rev. 6.00. The DF70855AD80FPV#GZ allocates memory regions per the address map in Section 3.4, with no external memory interface required for typical applications.