Renesas DF71242N50FPV#G1

Overview

DF71242N50FPV#G1 from Renesas Electronics is a 32-bit RISC microcontroller in the SH7124 Group, featuring the SuperH™ CPU core, 50 MHz maximum operating frequency, 256 KB on-chip Flash memory, and integrated peripherals including UART, CAN, and timer modules. It serves as a system controller in industrial automation and motor control applications requiring deterministic real-time response.

For engineers reviewing the DF71242N50FPV#G1 datasheet, DF71242N50FPV#G1 pinout, DF71242N50FPV#G1 application, or DF71242N50FPV#G1 equivalent, this page delivers verified functional identity, validated package mapping (144-pin LQFP), confirmed clocking architecture (on-chip CPG with PLL), and two documented alternative parts for migration planning.

Technical Context

The DF71242N50FPV#G1 implements the SH-2 CPU core with 32-bit data bus, 32-bit address space, and Harvard architecture supporting 16/32-bit instruction encoding. It integrates a Clock Pulse Generator (CPG) with PLL multiplier, on-chip RAM (16 KB), and peripheral modules including 3-channel CAN controllers compliant with ISO 11898-1, 4-channel 16-bit timers with PWM output, and 2-channel SCI interfaces.

It operates from a single 3.3 V supply, supports single-chip mode with internal reset generation, and includes exception handling with vector table relocation, priority-based interrupt controller (IPR registers), and dedicated reset sources including power-on reset, manual reset, and oscillation stop detection - all confirmed in the SH7124 Group Hardware Manual Rev.5.00.

Key Specifications

Pinout & Package

DF71242N50FPV#G1 is housed in a 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow the SH7124 Group standard layout, with dedicated power/ground pairs per I/O bank and segregated analog/digital supply domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F71242N50FPV#G1 and SH7124R50FPV, DF71242N50FPV#G1 provides identical core functionality and timing performance but guarantees RoHS-compliant packaging and full lifecycle documentation traceability under Renesas' post-2010 corporate structure.

Availability

DF71242N50FPV#G1 is available at Aetrix Electronics and suitable for industrial automation, motor control, and building management systems requiring stable component supply, long-term manufacturing continuity, and automotive-grade reliability validation.

Supply support for DF71242N50FPV#G1 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial and automotive markets.

The SH7124 Group, including DF71242N50FPV#G1, was designed for cost-sensitive, high-reliability embedded control applications demanding real-time responsiveness, integrated communication interfaces, and robust operation across extended temperature ranges.

FAQ

What is the core architecture of the DF71242N50FPV#G1?

The DF71242N50FPV#G1 features the SH-2 32-bit RISC CPU core with five-stage pipeline execution, 32-bit address/data buses, and Harvard architecture supporting both 16-bit and 32-bit instructions. This architecture delivers deterministic timing behavior essential for real-time control tasks in the DF71242N50FPV#G1's target applications.

Does the DF71242N50FPV#G1 include on-chip Flash memory, and what is its capacity?

Yes, the DF71242N50FPV#G1 integrates 256 KB of on-chip Flash memory for program storage, supporting in-system programming and secure lock-bit protection. This capacity allows full implementation of real-time OS kernels and application firmware within the DF71242N50FPV#G1 without external memory.

What communication interfaces are supported by the DF71242N50FPV#G1?

The DF71242N50FPV#G1 supports three ISO 11898-1-compliant CAN channels, two asynchronous serial communication interfaces (SCI), and an I²C-compatible interface. These interfaces enable robust fieldbus connectivity and host communication in industrial environments where the DF71242N50FPV#G1 is deployed.

What is the maximum operating frequency and supply voltage for the DF71242N50FPV#G1?

The DF71242N50FPV#G1 operates at a maximum frequency of 50 MHz and requires a nominal 3.3 V ±0.3 V supply voltage. Its on-chip Clock Pulse Generator (CPG) with PLL allows stable internal clock derivation from external crystals between 1 MHz and 20 MHz - a key specification of the DF71242N50FPV#G1.

Is the DF71242N50FPV#G1 pin-compatible with other SH7124 Group variants?

Yes, the DF71242N50FPV#G1 shares identical pin assignment and electrical characteristics with other 144-pin LQFP variants in the SH7124 Group, including R5F71242N50FPV#G1 and SH7124R50FPV. This uniformity ensures direct PCB reuse across SH7124 Group members, simplifying design migration for the DF71242N50FPV#G1.