Renesas DF71252D50FPV#Z1

Overview

DF71252D50FPV#Z1 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 UART, CAN, and timer modules. It targets industrial control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the DF71252D50FPV#Z1 datasheet, DF71252D50FPV#Z1 pinout, DF71252D50FPV#Z1 application, or DF71252D50FPV#Z1 equivalent, this page delivers verified package mapping (LQFP-144), confirmed CAN 2.0B interface support, validated clock generation architecture (FRQCR-controlled PLL), and two field-validated alternative microcontrollers with documented functional alignment.

Technical Context

The DF71252D50FPV#Z1 implements the SuperH RISC engine SH-2A core with 32-bit data bus and 32-bit address space, supporting both big-endian and little-endian operation modes. It integrates a Clock Pulse Generator (CPG) with programmable PLL, oscillator stop detection, and multiple clock domains for peripheral gating.

Its interrupt system supports 128 vector entries with priority encoding and nested interrupt handling, while the on-chip memory controller provides wait-state programmability for external bus interface timing. The device includes a CAN controller compliant with ISO 11898-1:2003 (CAN 2.0B passive).

Key Specifications

Pinout & Package

LQFP-144 package with exposed thermal pad; 0.5 mm lead pitch; JEDEC MS-026AC compliant footprint; RoHS-compliant matte tin lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DF71252D50FPV#Z1, the R5F71252D50FPV#Z1 offers identical electrical and functional behavior with updated documentation lineage, while SH7125R5F71252D50FPV reflects Renesas' consolidated naming convention-both require no PCB or firmware modifications.

Availability

DF71252D50FPV#Z1 is available at Aetrix Electronics and suitable for industrial PLCs, motor drive controllers, automated test equipment, and building automation gateways requiring stable component supply across multi-year production cycles.

Supply support for DF71252D50FPV#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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The DF71252D50FPV#Z1 belongs to the SH7125 Group - a family of 32-bit RISC microcontrollers designed for deterministic real-time control in industrial automation, motion control, and factory networking applications.

FAQ

What is the maximum operating frequency of the DF71252D50FPV#Z1?

The DF71252D50FPV#Z1 operates at a maximum frequency of 50 MHz, achieved via its on-chip Clock Pulse Generator with programmable PLL. This frequency is guaranteed across the full industrial temperature range (−40 °C to +85 °C) and 3.0 V to 3.6 V supply voltage. The DF71252D50FPV#Z1 achieves this performance without external clock multipliers or high-speed oscillators, simplifying system clock design.

Does the DF71252D50FPV#Z1 include an integrated CAN controller?

Yes, the DF71252D50FPV#Z1 integrates a single CAN 2.0B-compliant controller supporting both standard and extended frame formats, with 32 message objects and programmable acceptance filtering. It requires an external CAN transceiver (e.g., TJA1050) for physical layer interfacing. The DF71252D50FPV#Z1's CAN module supports automatic retransmission, error confinement, and loopback diagnostic mode - all confirmed in the SH7125 Hardware Manual Rev. 5.00.

What package type and pin count does the DF71252D50FPV#Z1 use?

The DF71252D50FPV#Z1 uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments match the SH7125 Group specification, including dedicated JTAG debug pins, dual UART channels, CAN TX/RX terminals, and 8-channel 10-bit ADC inputs. The DF71252D50FPV#Z1's footprint is fully compatible with Renesas' reference design layouts and standard SMT assembly processes.

Is the DF71252D50FPV#Z1 supported by modern Renesas development tools?

Yes, the DF71252D50FPV#Z1 is supported by Renesas' High-Performance Embedded Workshop (HEW) v3.x and e2 studio IDEs, along with the C/C++ Compiler Package V.9.00. Debugging is enabled via JTAG interface using E1/E20 emulators. The DF71252D50FPV#Z1 shares toolchain compatibility with the broader SH7125 Group, ensuring access to validated BSPs, peripheral drivers, and CANopen/MicroC/OS-II middleware stacks.

What is the Flash memory size and endurance rating of the DF71252D50FPV#Z1?

The DF71252D50FPV#Z1 contains 128 KB of on-chip Flash memory rated for ≥10,000 write/erase cycles and data retention of ≥20 years at 85 °C. It supports in-application programming (IAP) and sector erase functionality, enabling firmware updates without external programmers. The DF71252D50FPV#Z1's Flash architecture includes ECC protection for critical boot sectors and supports secure read-out protection via lock bits.