Renesas DF71374AD80FPV

Overview

DF71374AD80FPV from Renesas Electronics is a 32-bit RISC microcontroller in the SH7137 Group, featuring the SuperH™ CPU core, 512 KB on-chip Flash memory, 32 KB RAM, and integrated peripherals including UART, CAN, I²C, and 10-bit ADC. It operates at up to 40 MHz and targets industrial control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the DF71374AD80FPV datasheet, DF71374AD80FPV pinout, DF71374AD80FPV application, or DF71374AD80FPV equivalent, key selection criteria include its 128-pin LQFP package, CAN 2.0B interface compliance, 3.3 V single-supply operation, Flash endurance of 10,000 write/erase cycles, and support for single-chip and extended MCU operating modes.

Technical Context

The DF71374AD80FPV implements the SuperH RISC engine (SH-2 core) with 32-bit data path, 32 × 32-bit general-purpose registers, and 16-bit fixed-length instructions. It integrates a Clock Pulse Generator (CPG) supporting crystal/resonator input (4–20 MHz) and internal PLL for scalable system clock derivation.

Exception handling includes 15 priority-level interrupt sources, reset vector at 0x00000000, and dedicated address error detection logic. The on-chip debug interface supports real-time trace and breakpoint control via the JTAG port, enabling non-intrusive firmware validation in safety-critical embedded environments.

Key Specifications

Pinout & Package

DF71374AD80FPV is housed in a 128-pin LQFP package with exposed thermal pad. Pin functions are defined per SH7137 Group Hardware Manual Rev.3.00 (REJ09B0402-0300), Section 1.3 (Pin Assignments) and Section 1.4 (Pin Functions).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with DF71374AD80FPV, R5F71374AD80FPV offers identical functionality with updated documentation and lifecycle management, while SH7137R5F7137 provides backward-compatible marking for field replacement - both preserve full pin-to-pin and code compatibility without PCB or firmware changes.

Availability

DF71374AD80FPV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, and building automation gateways requiring stable component supply and long-term production continuity.

Supply support for DF71374AD80FPV 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 SH7137 Group belongs to Renesas' legacy SuperH™ RISC microcontroller family, designed specifically for deterministic real-time embedded control in factory automation, test equipment, and motion systems.

FAQ

What is the maximum operating frequency of the DF71374AD80FPV?

The DF71374AD80FPV operates at a maximum CPU frequency of 40 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL multiplier. This frequency is sustained across the full −40°C to +85°C industrial temperature range when powered at 3.3 V ±0.3 V, and is confirmed in the SH7137 Group Hardware Manual Rev.3.00 Section 4.3 (Clock Operating Mode). DF71374AD80FPV maintains instruction timing consistency without dynamic frequency scaling.

Does DF71374AD80FPV support in-system programming of its Flash memory?

Yes, DF71374AD80FPV supports in-application programming (IAP) of its 512 KB on-chip Flash memory using the built-in Flash memory controller. The process requires execution from RAM or protected Flash sectors, adheres to specific command sequences documented in Section 24.3 of the SH7137 Group Hardware Manual, and guarantees 10,000 write/erase cycles. DF71374AD80FPV includes hardware lock bits to prevent accidental overwrite during runtime.

What debug interface does DF71374AD80FPV provide?

DF71374AD80FPV features a standard IEEE 1149.1 JTAG interface compliant with the SH-2 core debug architecture. It supports real-time instruction trace, hardware breakpoints, watchpoints, and register visibility without halting CPU execution. Debug access is enabled via dedicated TCK/TMS/TDI/TDO/TRST pins, and full functionality is verified in Renesas' High-performance Embedded Workshop v3 toolchain. DF71374AD80FPV does not implement SWD or cJTAG.

Is DF71374AD80FPV qualified for automotive applications?

No, DF71374AD80FPV is classified as a "Standard" quality grade device per Renesas' product grading system (Notice #7), intended for industrial, office, and communications equipment - not for automotive, medical life-support, or aerospace use. It lacks AEC-Q100 qualification, extended temperature screening, and automotive-specific failure-in-time (FIT) reporting. DF71374AD80FPV must not be deployed in safety-critical vehicle subsystems without explicit written consent from Renesas Electronics.

How many CAN controllers are integrated in DF71374AD80FPV?

DF71374AD80FPV integrates one CAN 2.0B-compliant controller supporting both standard (11-bit) and extended (29-bit) identifier formats, with 32 configurable message objects and programmable acceptance filtering. This controller operates independently of the CPU via dedicated DMA-like message RAM and status registers, and is electrically isolated from the bus via external transceivers. DF71374AD80FPV does not include multiple CAN channels or CAN FD capability.