Renesas R5F72145GDFA#V1

Overview

R5F72145GDFA#V1 from Renesas Electronics is a 32-bit RISC microcontroller based on the SuperH™ SH-2A core, featuring 512 KB on-chip Flash memory, 64 KB RAM, and integrated peripherals including SCI, I²C, CAN, USB 2.0 FS, and 12-bit ADC - deployed in industrial motor control and factory automation systems requiring deterministic real-time response.

For engineers reviewing the R5F72145GDFA#V1 datasheet, R5F72145GDFA#V1 pinout, R5F72145GDFA#V1 application, or R5F72145GDFA#V1 equivalent, key selection criteria include CAN 2.0B compliance, 48 MHz USB clock support, 100-pin LQFP package with 79 general-purpose I/Os, and operating temperature range of −40°C to +85°C for embedded control designs.

Technical Context

The R5F72145GDFA#V1 implements the SH-2A CPU core with FPU support, executing instructions at up to 48 MHz via internal PLL with programmable frequency division. It integrates a Clock Pulse Generator (CPG) supporting multiple clock sources - crystal resonator (1–20 MHz), external clock input, or internal oscillator - and provides dedicated 48 MHz USB clock generation with ceramic resonator or external 48 MHz signal options.

System-level features include a Data Transfer Controller (DTC) for autonomous peripheral-to-memory transfers, an Interrupt Controller (INTC) with 128 interrupt sources and 7 priority levels, and a Bus State Controller (BSC) enabling flexible memory mapping across ROM, RAM, and peripheral address spaces - all configured via dedicated SFRs without software overhead.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed pad (EPAD) connected to VSS for improved heat dissipation in continuous motor drive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72145GDFA#V1, the R5F72144GDFA#V1 offers lower memory capacity at identical cost/performance per MHz, while the R5F72146GDFA#V1 delivers headroom for complex protocol stacks and future firmware growth - all sharing the same thermal profile and PCB footprint.

Availability

R5F72145GDFA#V1 is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and embedded HMI terminals requiring stable component supply across multi-year production cycles.

Supply support for R5F72145GDFA#V1 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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The SH7214 Group - including the R5F72145GDFA#V1 - was designed specifically for deterministic real-time control in factory automation and motor drive applications, emphasizing integrated analog/mixed-signal capability and fieldbus connectivity.

FAQ

What is the maximum operating frequency of the R5F72145GDFA#V1?

The R5F72145GDFA#V1 operates at a maximum CPU frequency of 48 MHz, achieved via its on-chip PLL with programmable frequency division from external crystal (1–20 MHz) or external clock input. This frequency is sustained across the full −40°C to +85°C industrial temperature range under 3.0–3.6 V supply conditions, as verified in the Electrical Characteristics section of the Hardware User's Manual Rev.4.00.

Does the R5F72145GDFA#V1 support CAN FD or only classical CAN 2.0B?

The R5F72145GDFA#V1 supports only CAN 2.0B (ISO 11898-1) with bit rates up to 1 Mbps - it does not implement CAN FD protocol features such as variable bit rate or extended data length. Its CAN module includes transmit/receive buffers, error counters, and bus-off recovery logic, as documented in Section 12 of the Hardware User's Manual.

Is an external crystal required for USB functionality on the R5F72145GDFA#V1?

No, the R5F72145GDFA#V1 can generate its 48 MHz USB clock internally using either a ceramic resonator (connected to USBXTAL/USBEXTAL pins) or an external 48 MHz clock signal - eliminating the need for a precision crystal. The CPG module handles clock switching and stabilization automatically, as specified in Section 4.8 of the Hardware User's Manual.

How many general-purpose I/O pins does the R5F72145GDFA#V1 provide in its 100-pin LQFP package?

The R5F72145GDFA#V1 provides 79 general-purpose I/O pins in its 100-pin LQFP package, with remaining pins allocated to power, ground, clock, reset, and dedicated peripheral functions (e.g., USB, CAN, XTAL). Pin multiplexing is controlled via the Port Mode Register (PMR) and Port Input/Output Direction Register (PIOR), as detailed in Section 1.4 of the Hardware User's Manual.

What debug interface does the R5F72145GDFA#V1 support, and is JTAG mandatory?

The R5F72145GDFA#V1 supports a 5-pin JTAG interface (TCK, TMS, TDI, TDO, TRST#) for boundary-scan testing and on-chip debugging, as defined in Section 1.3 of the Hardware User's Manual. While JTAG is the primary debug method, the device also supports SWD (Serial Wire Debug) via shared pins - however, JTAG remains the recommended and fully documented interface for production programming and real-time trace.