Renesas R5F72145BDFP#H1

Overview

R5F72145BDFP#H1 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, and 12-bit ADC. It operates at up to 80 MHz and targets industrial motor control and embedded automation systems requiring deterministic real-time response.

For engineers reviewing the R5F72145BDFP#H1 datasheet, R5F72145BDFP#H1 pinout, R5F72145BDFP#H1 application, or R5F72145BDFP#H1 equivalent, key selection criteria include CAN 2.0B compliance, 80 MHz max CPU frequency, 512 KB Flash with EEPROM emulation, 12-bit ADC resolution with 16-channel input, and support for single-chip mode with external bus interface capability.

Technical Context

The R5F72145BDFP#H1 implements the SH-2A CPU core with FPU support, executing instructions in a five-stage pipeline with branch prediction. It integrates a Clock Pulse Generator (CPG) supporting multiple clock sources - crystal resonator (1–20 MHz), external clock input, and internal oscillator - with programmable PLL for generating system clocks up to 80 MHz.

Peripheral integration includes a Data Transfer Controller (DTC) for autonomous DMA transfers, an Interrupt Controller (INTC) with 128 interrupt sources and 7 priority levels, and a Bus State Controller (BSC) enabling external memory expansion via 16-bit data/24-bit address bus with wait-state control and burst access support.

Key Specifications

Pinout & Package

The R5F72145BDFP#H1 is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in motor drive applications. Pin assignments follow Renesas' SH7214 Group pinout standard, supporting single-chip and expanded bus modes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72145BDFP#H1, the R5F72144BDFP#H1 offers lower memory capacity for streamlined deployments, while the R5F72146BDFP#H1 provides headroom for feature-rich firmware and larger runtime data structures - all sharing identical timing behavior, peripheral register maps, and PCB layout.

Availability

R5F72145BDFP#H1 is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, building energy management systems, and portable medical diagnostic equipment requiring stable component supply over extended production lifecycles.

Supply support for R5F72145BDFP#H1 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 automotive, industrial, and IoT markets.

The SH7214 Group, including R5F72145BDFP#H1, was designed for high-performance real-time embedded control in industrial automation, motor drives, and networked equipment where deterministic timing and mixed-signal integration are critical.

FAQ

What is the maximum operating frequency of the R5F72145BDFP#H1?

The R5F72145BDFP#H1 operates at a maximum CPU frequency of 80 MHz, achieved via its integrated PLL-based Clock Pulse Generator (CPG) with configurable multiplication ratios. This frequency is validated across the full operating voltage range (3.0 V to 3.6 V) and ambient temperature range (−40°C to +85°C), enabling deterministic execution of real-time control loops with sub-microsecond latency. The R5F72145BDFP#H1 achieves this performance without external clock multipliers or auxiliary timing ICs.

Does the R5F72145BDFP#H1 support CAN communication?

Yes, the R5F72145BDFP#H1 integrates one CAN 2.0B-compliant controller supporting both standard (11-bit) and extended (29-bit) identifier formats, with programmable bit timing and automatic retransmission. It requires an external CAN transceiver (e.g., TJA1042) for physical layer connection. The CAN module features dedicated message buffers, FIFO mode, and error counters accessible via memory-mapped registers - all documented in the SH7214 Group Hardware User's Manual. The R5F72145BDFP#H1 uses this interface for industrial fieldbus communication in motor drives and PLCs.

What package type and pin count does the R5F72145BDFP#H1 use?

The R5F72145BDFP#H1 is packaged in a 144-pin LQFP (Low-Profile Quad Flat Package) measuring 20 mm × 20 mm with 0.5 mm pin pitch and an exposed thermal pad. This package supports both single-chip operation and external memory expansion via its multiplexed AD0–AD15 bus. Pin assignments match the SH7214 Group standard, ensuring compatibility with existing Renesas reference designs and evaluation boards. The R5F72145BDFP#H1's pinout is fully detailed in Section 1.3 ("Pin Assignment") of its Hardware User's Manual (Rev. 4.00, Jun 2013).

How much on-chip Flash and RAM does the R5F72145BDFP#H1 include?

The R5F72145BDFP#H1 integrates 512 KB of on-chip Flash memory with EEPROM emulation capability and 64 KB of SRAM. The Flash supports block erase, page programming, and secure write-protection via lock bits. The RAM is split into multiple banks for simultaneous CPU and peripheral access. These memory resources enable standalone operation without external storage in applications such as motor control firmware and real-time data logging. The R5F72145BDFP#H1's memory map and access timing are defined in Section 3.4 ("Address Map") of its Hardware User's Manual.

Is the R5F72145BDFP#H1 pin-compatible with other SH7214 Group MCUs?

Yes, the R5F72145BDFP#H1 shares identical pinout, electrical characteristics, and peripheral register mapping with other members of the SH7214 Group in the same 144-pin LQFP package, including R5F72144BDFP#H1 and R5F72146BDFP#H1. This allows direct PCB reuse across variants differing only in Flash/RAM capacity. All share the same clock, reset, and debug interface pin assignments. The R5F72145BDFP#H1's compatibility is confirmed in Renesas' SH7214 Group Hardware User's Manual, Section 1.3, and supported by Renesas' migration guidelines for memory-scaling within the family.