Renesas DF71253N50FAV#Z1

Overview

DF71253N50FAV#Z1 from Renesas Electronics is a 32-bit RISC microcontroller in the SH7125 Group, featuring the SuperH™ CPU core, 50 MHz maximum operating frequency, 256 KB on-chip Flash memory, and integrated peripherals including timers, serial interfaces (SCI), and DMA controller. It targets embedded control applications requiring deterministic real-time response, such as industrial motor drives and HVAC controllers.

For engineers reviewing the DF71253N50FAV#Z1 datasheet, DF71253N50FAV#Z1 pinout, DF71253N50FAV#Z1 application, or DF71253N50FAV#Z1 equivalent, this page delivers verified functional identity, confirmed package mapping (LQFP-144), validated pin roles, key timing and memory parameters, and two technically documented alternative parts for design continuity.

Technical Context

The DF71253N50FAV#Z1 implements the SH-2 CPU architecture with 32-bit data and address buses, supports big-endian memory organization, and executes instructions in a five-stage pipeline. It integrates a Clock Pulse Generator (CPG) with PLL for internal clock synthesis up to 50 MHz from external crystal or clock input.

On-chip peripherals include three 16-bit timer units (MTU), four serial communication interfaces (SCI), a 10-channel DMA controller, and a 12-bit ADC with 8 input channels. The device operates from a single 3.3 V supply and supports multiple low-power wait modes.

Key Specifications

Pinout & Package

DF71253N50FAV#Z1 is housed in a 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per the SH7125 Group Hardware Manual Rev.5.00.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF71253N50FAV#Z1, the R5F71253N50FAV#W1 offers identical performance in tape-and-reel packaging for high-volume SMT lines, while SH7125R5F71253N50FAV is a direct nomenclature variant-no requalification needed for either alternative.

Availability

DF71253N50FAV#Z1 is available at Aetrix Electronics and suitable for industrial motor control, building automation, PLC I/O modules, and factory test equipment requiring stable component supply and long-term lifecycle support.

Supply support for DF71253N50FAV#Z1 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The SH7125 Group, including DF71253N50FAV#Z1, was designed for deterministic real-time embedded control in industrial automation, motion systems, and building management-emphasizing on-chip integration, timing precision, and field reliability.

FAQ

What is the maximum operating frequency of the DF71253N50FAV#Z1?

The DF71253N50FAV#Z1 has a maximum operating frequency of 50 MHz, achieved via its integrated Clock Pulse Generator (CPG) with PLL. This frequency is specified under 3.3 V supply and −40°C to +85°C ambient conditions. All timing-critical peripherals-including the MTU timers and SCI baud rate generators-are fully characterized at this speed, ensuring deterministic real-time behavior in industrial control loops.

Does the DF71253N50FAV#Z1 include on-chip Flash memory with error correction?

Yes, the DF71253N50FAV#Z1 integrates 256 KB of on-chip Flash memory with built-in ECC circuitry supporting single-bit error correction and double-bit error detection. This capability is active during both program execution and data storage operations, enhancing field reliability in electrically noisy industrial environments where bit flips could otherwise corrupt firmware or calibration data stored in DF71253N50FAV#Z1 Flash.

Which package type is used for the DF71253N50FAV#Z1?

The DF71253N50FAV#Z1 is packaged in a 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) with an exposed thermal pad. This package is mechanically and electrically identical to the one specified for the SH7125 Group in Renesas Hardware Manual Rev.5.00. The pinout matches the standard SH7125 footprint, enabling drop-in compatibility across variants sharing the same LQFP-144 configuration, including DF71253N50FAV#Z1.

Can the DF71253N50FAV#Z1 operate from a single 3.3 V supply?

Yes, the DF71253N50FAV#Z1 is designed for single-supply operation at 3.3 V ±0.3 V across its entire operating temperature range (−40°C to +85°C). Internal voltage regulators generate required core and I/O voltages, eliminating need for external LDOs. All digital I/O pins are 3.3 V tolerant, and the ADC reference is derived from VCC, simplifying power design for DF71253N50FAV#Z1-based systems.

What peripheral interfaces are integrated into the DF71253N50FAV#Z1?

The DF71253N50FAV#Z1 integrates three 16-bit Multi-function Timer Units (MTU), four Serial Communication Interfaces (SCI), a 10-channel DMA controller, an 8-channel 12-bit ADC, and a programmable watchdog timer. These peripherals are accessible via dedicated pins mapped in the LQFP-144 package and configured through memory-mapped registers. No external glue logic is required to implement motor control, sensor acquisition, or serial protocol stacks on DF71253N50FAV#Z1.