Renesas DF71494AD80FPV#GZ

Overview

DF71494AD80FPV#GZ from Renesas Electronics is a 32-bit SuperH™ RISC microcontroller in the SH7149 Group, featuring a 40 MHz maximum CPU clock, 512 KB on-chip Flash memory, and integrated peripherals including CPG, INTC, UBC, and multiple serial interfaces. It operates at 3.3 V supply and targets industrial control and embedded instrumentation systems requiring deterministic real-time response.

For engineers reviewing the DF71494AD80FPV#GZ datasheet, DF71494AD80FPV#GZ pinout, DF71494AD80FPV#GZ application, or DF71494AD80FPV#GZ equivalent, key selection criteria include its 40 MHz core frequency, 512 KB Flash/32 KB RAM configuration, 144-pin LQFP package, and support for single-chip and MCU extension operating modes per hardware manual Rev.4.00.

Technical Context

The DF71494AD80FPV#GZ implements the SuperH RISC engine core with 32-bit data path, 32 general-purpose registers, and support for privileged/user processing states. It integrates a Clock Pulse Generator (CPG) with FRQCR and OSCCR registers for dynamic frequency control and oscillator stop detection.

Its interrupt architecture includes a programmable Interrupt Controller (INTC) with priority registers (IPRA, IPRD–IPRF, IPRH–IPRL), IRQCR/IRQSR control, and vector-based exception handling. The User Break Controller (UBC) provides two independent break address/data monitoring channels with mask and bus cycle qualification.

Key Specifications

Pinout & Package

DF71494AD80FPV#GZ is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow SH7149 Group layout per Hardware Manual Rev.4.00 Section 1.3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F71494AD80FPV#GZ and SH7149R5F71494AD80FPV, DF71494AD80FPV#GZ offers identical core performance and peripheral integration but may differ in traceability documentation and packaging labeling-critical for OEM audit compliance and long-term BOM management.

Availability

DF71494AD80FPV#GZ is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, and embedded test instrumentation requiring stable component supply across multi-year production cycles.

Supply support for DF71494AD80FPV#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 global semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and infrastructure markets.

The SH7149 Group, including DF71494AD80FPV#GZ, was designed for deterministic real-time embedded control in industrial automation, motion control, and instrumentation - emphasizing low-latency interrupt response, on-chip memory integration, and robust operating temperature range.

FAQ

What is the maximum operating frequency of the DF71494AD80FPV#GZ?

The DF71494AD80FPV#GZ supports a maximum CPU clock frequency of 40 MHz, achieved via its integrated Clock Pulse Generator (CPG) with PLL circuitry. This frequency is validated across the full −40°C to +85°C operating temperature range and 3.3 V ±0.3 V supply voltage, as specified in the SH7149 Group Hardware Manual Rev.4.00 Section 4.3.

Does the DF71494AD80FPV#GZ include on-chip Flash memory, and what is its capacity?

Yes, the DF71494AD80FPV#GZ integrates 512 KB of on-chip Flash memory, organized for in-system programming and sector erase operations. This capacity supports standalone firmware deployment without external memory, and is confirmed in the SH7149 Group memory map (Section 3.4) and electrical characteristics table (Section 8) of the Hardware Manual Rev.4.00.

What package type and pin count does the DF71494AD80FPV#GZ use?

The DF71494AD80FPV#GZ uses a 144-pin LQFP package measuring 20 mm × 20 mm with 0.5 mm pin pitch and an exposed thermal pad. Pin assignments match the SH7149 Group standard layout documented in Section 1.3 of the Hardware Manual Rev.4.00, ensuring mechanical and electrical compatibility with existing SH7149 reference designs.

How does the DF71494AD80FPV#GZ handle interrupt latency in real-time applications?

The DF71494AD80FPV#GZ achieves a minimum interrupt response time of 6 CPU cycles from IRQ assertion to first instruction fetch, as defined in Section 6.7 of the Hardware Manual Rev.4.00. This deterministic latency is enabled by its dedicated Interrupt Controller (INTC) with priority registers and vector-based dispatch, making it suitable for sub-microsecond timing-critical control tasks.

Is the DF71494AD80FPV#GZ supported by Renesas' standard development tools?

Yes, the DF71494AD80FPV#GZ is fully supported by Renesas' High-performance Embedded Workshop 3 IDE (REJ10B0025), SH-1/SH-2/SH-DSP Software Manual (REJ09B0171), and C/C++ Compiler Package V.9.00 (REJ10B0152). Its SH7149 Group designation ensures compatibility with all documented debug interfaces, flash programming utilities, and peripheral driver libraries.