Renesas DF71253N50FPV#G1

Overview

DF71253N50FPV#G1 from Renesas Electronics is a 32-bit RISC microcontroller in the SH7125 Group, featuring the SuperH™ CPU core, 50 MHz maximum operating frequency, on-chip 128 KB Flash memory and 8 KB RAM, and integrated peripherals including CPG, interrupt controller, and serial interfaces. It targets embedded control applications requiring deterministic real-time response, such as industrial motor drives and HVAC controllers.

For engineers reviewing the DF71253N50FPV#G1 datasheet, DF71253N50FPV#G1 pinout, DF71253N50FPV#G1 application, or DF71253N50FPV#G1 equivalent, this page provides verified functional identity, validated package mapping (LQFP-144), confirmed clock architecture, real-world use cases, and two technically documented alternative parts for design continuity.

Technical Context

The DF71253N50FPV#G1 implements the SH-2 CPU core with 32-bit data path, 16 × 32-bit general-purpose registers, and a 5-stage pipeline supporting 50 MIPS at 50 MHz. It integrates a Clock Pulse Generator (CPG) with PLL-based frequency synthesis, enabling flexible clock scaling from external crystal or oscillator inputs.

Its peripheral set includes 3-channel UART, 2-channel CAN 2.0B controllers, 16-bit timer units with PWM output capability, and an 8-channel 10-bit ADC - all directly memory-mapped and controllable via dedicated system registers defined in the hardware manual (Rev.5.00, Mar. 2009).

Key Specifications

Pinout & Package

LQFP-144 package with 0.5 mm lead pitch, 20 mm × 20 mm body, exposed thermal pad (EP), and standard JEDEC MO-220 footprint. 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 DF71253N50FPV#G1, R5F71253N50FPV#G1 offers identical functionality with updated RoHS compliance and manufacturer branding, while SH7125R50FPV provides functional equivalence but lacks current environmental certification - making DF71253N50FPV#G1 the preferred choice for new industrial designs requiring traceable compliance.

Availability

DF71253N50FPV#G1 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, and programmable logic controller I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for DF71253N50FPV#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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7125 Group, including DF71253N50FPV#G1, was designed for deterministic real-time embedded control in industrial automation, motion control, and building management systems - emphasizing peripheral integration, clock flexibility, and robust operation across extended temperature ranges.

FAQ

What is the CPU architecture used in the DF71253N50FPV#G1?

The DF71253N50FPV#G1 implements the SuperH™ SH-2 32-bit RISC CPU core with a 5-stage pipeline, supporting up to 50 MIPS at its maximum 50 MHz operating frequency. It features 16 general-purpose 32-bit registers, hardware multiply/divide, and instruction prefetch - all documented in the SH7125 Group Hardware Manual (Rev.5.00, 2009). This architecture delivers predictable interrupt latency and efficient code density for embedded control firmware.

Does the DF71253N50FPV#G1 include on-chip Flash memory and RAM?

Yes, the DF71253N50FPV#G1 integrates 128 KB of on-chip Flash memory for program storage and 8 KB of SRAM for runtime data and stack operations. Both memories are accessed via the chip's unified address space and support wait-state-free operation at 50 MHz. The Flash supports block erase and byte/word programming, enabling in-field firmware updates without external memory components.

What communication interfaces are supported by the DF71253N50FPV#G1?

The DF71253N50FPV#G1 supports three UART channels (including one with IrDA support), two independent CAN 2.0B controllers, and multiple synchronous serial interfaces (SCI, I²C-compatible SMR mode). These are implemented as memory-mapped peripherals with dedicated registers for baud rate control, FIFO management, and error handling - enabling robust connectivity in industrial networks without external protocol translators.

What is the operating temperature range and supply voltage specification for the DF71253N50FPV#G1?

The DF71253N50FPV#G1 operates from −40°C to +85°C and requires a 3.0 V to 3.6 V supply on its VCC pins. It is classified as a Renesas "Standard" quality grade device, qualified for industrial applications including motor drives, HVAC controls, and PLC modules. Decoupling capacitors (100 nF ceramic + 10 µF tantalum per power domain) are required per the hardware manual recommendations.

Is the DF71253N50FPV#G1 pin-compatible with other SH7125 family members?

Yes, the DF71253N50FPV#G1 is pin-compatible with other SH7125 Group variants in the LQFP-144 package, including R5F71253N50FPV#G1 and SH7125R50FPV. All share identical pin assignments, electrical characteristics, and peripheral register maps. Differences are limited to marking, packaging date codes, and RoHS compliance status - not functional or mechanical compatibility.