Renesas DS70850AD80FPV

Overview

DS70850AD80FPV from Renesas Electronics is a 32-bit SuperH™ RISC microcomputer in the SH7085 Group, featuring a 32-bit CPU core, on-chip 512 KB Flash memory, 32 KB RAM, and integrated peripherals including CPG, INTC, UBC, and serial interfaces. It operates at up to 80 MHz, supports single-chip mode, and targets industrial control and embedded instrumentation applications requiring deterministic real-time response.

For engineers reviewing the DS70850AD80FPV datasheet, DS70850AD80FPV pinout, DS70850AD80FPV application, or DS70850AD80FPV equivalent, key selection criteria include clock frequency (80 MHz), Flash/RAM capacity (512 KB / 32 KB), operating voltage (3.0–3.6 V), package type (LQFP-144), and compliance with industrial-grade reliability requirements per Renesas quality grading.

Technical Context

The DS70850AD80FPV implements the SuperH RISC engine architecture with 32-bit data path and 32-bit address space, supporting big-endian byte ordering and fixed-length 16-bit instructions. It integrates a Clock Pulse Generator (CPG) with programmable PLL for internal clock synthesis and supports multiple operating modes including MCU Extension Mode 0–2 and Single Chip Mode.

Exception handling includes power-on reset, manual reset, address error detection, and prioritized interrupt vectors managed by the Interrupt Controller (INTC). The User Break Controller (UBC) provides hardware-assisted debugging with two independent break points, each configurable for address, bus cycle, and optional data matching (F-ZTAT variant only).

Key Specifications

Pinout & Package

LQFP-144 package with 0.5 mm lead pitch, 20 mm × 20 mm body, and exposed thermal pad (non-electrical). Pin 1 marked by dot; pins numbered counterclockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DS70850AD80FPV, R5F7085AD80FPV offers identical functionality and drop-in compatibility, while SH7085F32A trades speed, memory, and I/O for lower cost and simplified layout - making it viable only where full 80 MHz capability and 144-pin expandability are unnecessary.

Availability

DS70850AD80FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation HMIs, energy meter concentrators, and railway signaling interface units requiring stable component supply across multi-year production cycles.

Supply support for DS70850AD80FPV 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 SH7085 Group - including DS70850AD80FPV - was designed for deterministic real-time control in industrial automation, test equipment, and embedded instrumentation where high clock speed, on-chip memory, and hardware debug are essential.

FAQ

What is the maximum operating frequency of the DS70850AD80FPV?

The DS70850AD80FPV operates at a maximum CPU clock frequency of 80 MHz when powered at 3.3 V and within its specified temperature range (−40°C to +85°C). This frequency is achieved using the on-chip Clock Pulse Generator with PLL enabled and a stable external crystal or clock source. Exceeding 80 MHz violates electrical specifications and may cause undefined behavior or data corruption in DS70850AD80FPV operation.

Does the DS70850AD80FPV include an on-chip debug interface?

Yes, the DS70850AD80FPV integrates a User Break Controller (UBC) supporting two independent hardware breakpoints with address, bus cycle, and optional data value matching (in F-ZTAT variants). It does not include JTAG or SWD; debugging relies on the UBC in conjunction with Renesas E1/E20 emulators via the dedicated DBG pin group. No external debug probe is needed for basic breakpoint and watchpoint functionality in DS70850AD80FPV systems.

What package type and pin count does the DS70850AD80FPV use?

The DS70850AD80FPV is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. It has 112 user I/O pins, 16 power/ground pins, and dedicated pins for reset, clock, mode selection, and debug. This package is fully compatible with standard SMT assembly processes and provides mechanical and thermal stability for industrial board layouts using DS70850AD80FPV.

Can the DS70850AD80FPV execute code directly from its on-chip Flash memory?

Yes, the DS70850AD80FPV supports XIP (eXecute-In-Place) from its 512 KB on-chip Flash memory. Code execution begins directly from Flash after reset, eliminating the need for bootloading into RAM. The Flash controller includes prefetch and cache-like buffering to sustain 80 MHz CPU throughput without wait states - a key design feature confirmed in the SH7080 Group Hardware Manual for DS70850AD80FPV and related SH7085 variants.

Is the DS70850AD80FPV qualified for automotive applications?

No, the DS70850AD80FPV is classified by Renesas as a "Standard" grade product intended for industrial, office, and consumer equipment - not transportation or safety-critical systems. It is not AEC-Q100 qualified, lacks extended temperature support beyond +85°C, and does not meet automotive EMC or reliability requirements. For automotive use, Renesas recommends RH850 or RL78/F1x families instead of DS70850AD80FPV.