Renesas DF71374AN80FPV

Overview

DF71374AN80FPV 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 16-bit timer units. It operates at up to 80 MHz and targets industrial control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the DF71374AN80FPV datasheet, DF71374AN80FPV pinout, DF71374AN80FPV application, or DF71374AN80FPV equivalent, key selection considerations include its 144-pin LQFP package, CAN 2.0B compliance, 3.3 V single-supply operation, Flash endurance of 10,000 write/erase cycles, and support for single-chip and MCU extension operating modes.

Technical Context

The DF71374AN80FPV implements the SuperH RISC engine (SH-2 core) with 32-bit data/address buses, 16 general-purpose registers, and a 5-stage pipeline. It integrates a Clock Pulse Generator (CPG) supporting crystal/resonator and external clock inputs, plus oscillation stop detection.

Its exception handling system supports 128 vector entries, including reset, NMI, IRQs, and software traps. The memory map includes configurable wait-state control for external bus interface, and on-chip debug support via JTAG interface compliant with IEEE 1149.1.

Key Specifications

Pinout & Package

DF71374AN80FPV is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per SH7137 Group Hardware Manual Rev.3.00, including dedicated CANH/CANL differential pairs, multiplexed address/data bus lines, and configurable I/O ports with pull-up/down control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF71374AN80FPV, R5F71374AN80FPV offers identical functionality with updated part numbering and assured supply continuity, while SH7137R5F7137 trades I/O and analog capability for lower cost and smaller footprint - making it viable only when feature reduction is acceptable.

Availability

DF71374AN80FPV is available at Aetrix Electronics and suitable for industrial PLCs, automated test equipment, building energy gateways, and motor control panels requiring stable component supply across multi-year production cycles.

Supply support for DF71374AN80FPV 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 - including DF71374AN80FPV - was designed for deterministic real-time control in industrial automation, offering integrated CAN, Flash, and extended temperature operation without external support chips.

FAQ

What is the core architecture of the DF71374AN80FPV?

The DF71374AN80FPV features the SuperH™ SH-2 32-bit RISC CPU core with a five-stage pipeline, 16 general-purpose registers, and native support for 32-bit integer operations. Its architecture delivers predictable instruction timing and efficient code density, making DF71374AN80FPV well-suited for hard real-time control tasks in industrial environments where jitter-free execution is critical.

Does DF71374AN80FPV support CAN FD or only classical CAN?

DF71374AN80FPV supports only Classical CAN 2.0B (up to 1 Mbps), not CAN FD. Its dual CAN controllers implement full CAN 2.0B compliance with message objects, acceptance filtering, and error confinement - confirmed in the SH7137 Group Hardware Manual Rev.3.00. DF71374AN80FPV does not include CAN FD protocol logic or higher-speed transceiver drivers.

What is the maximum operating frequency and associated voltage requirement for DF71374AN80FPV?

DF71374AN80FPV operates at a maximum CPU frequency of 80 MHz, requiring a nominal 3.3 V ±0.3 V supply. This voltage must be stable during all operating modes, including reset release and PLL lock acquisition. The DF71374AN80FPV datasheet specifies that exceeding 3.6 V or dropping below 3.0 V may cause undefined behavior or failure to meet timing specifications.

Is DF71374AN80FPV pin-compatible with other SH7137 variants such as the DF71372 or DF71376?

No, DF71374AN80FPV is not pin-compatible with DF71372 or DF71376. While all belong to the SH7137 Group, they differ in pin count (144 vs. 128 vs. 100), peripheral allocation (e.g., ADC channel count, CAN instance count), and power pin distribution. DF71374AN80FPV's 144-pin LQFP layout is unique to its feature set and requires dedicated PCB layout.

What debug interface does DF71374AN80FPV provide, and is SWD supported?

DF71374AN80FPV provides IEEE 1149.1-compliant JTAG for boundary scan and on-chip debugging. It does not support Serial Wire Debug (SWD). Debug access requires a JTAG adapter compatible with SH-2 core signaling; Renesas' E8a and E20 emulators are validated for DF71374AN80FPV firmware development and real-time trace.