Renesas R5F72145ADFP#H1

Overview

R5F72145ADFP#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 CAN v2.0B controller, 12-bit ADC (16 channels), and multiple timer units (MTU2S, GPT). 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 R5F72145ADFP#H1 datasheet, R5F72145ADFP#H1 pinout, R5F72145ADFP#H1 application, or R5F72145ADFP#H1 equivalent, key selection criteria include its SH-2A CPU performance, CAN bus support, Flash/RAM capacity, operating voltage range (3.0–3.6 V), and -40°C to +85°C industrial temperature grade.

Technical Context

The R5F72145ADFP#H1 implements the SH-2A superscalar RISC architecture with dual-issue capability, supporting both integer and floating-point operations via optional FPU extension. Its system clock is derived from an on-chip PLL with external crystal (4–20 MHz) or ceramic resonator input, configurable via FRQCR register.

Peripheral integration includes a 3-channel CAN controller compliant with ISO 11898-1:2003, a 12-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion, and a 6-channel MTU2S timer with complementary PWM output for three-phase motor drive.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72144ADFP#H1 and R5F72146ADFP#H1, the R5F72145ADFP#H1 provides the most balanced feature set for industrial motor control - sufficient Flash/RAM for complex FOC code, full 16-channel ADC for multi-sensor feedback, and no unnecessary silicon overhead like USB, resulting in lower power consumption and thermal footprint.

Availability

R5F72145ADFP#H1 is available at Aetrix Electronics and suitable for industrial motor drives, factory automation PLCs, and building HVAC controllers requiring stable component supply across multi-year production cycles.

Supply support for R5F72145ADFP#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 enterprise applications.

The SH7214 Group, including R5F72145ADFP#H1, was designed specifically for high-performance real-time industrial control - emphasizing deterministic timing, integrated motor control peripherals, and functional safety readiness (IEC 61508 SIL2-capable architecture).

FAQ

What is the maximum operating frequency of the R5F72145ADFP#H1?

The R5F72145ADFP#H1 operates at a maximum system clock frequency of 80 MHz, achieved via its on-chip PLL with external crystal (4–20 MHz) or ceramic resonator input. This frequency is sustained across the full industrial temperature range (-40°C to +85°C) and supply voltage (3.0–3.6 V), ensuring consistent real-time performance in demanding embedded applications. The SH-2A core delivers dual-issue execution at this rate, enabling high instruction throughput for motor control algorithms.

Does the R5F72145ADFP#H1 include a hardware floating-point unit?

The R5F72145ADFP#H1 supports optional floating-point arithmetic through the SH-2A FPU extension, which is implemented as part of the CPU core and enabled via control register configuration. It performs IEEE 754 single-precision operations (add, multiply, divide, square root) in hardware, significantly accelerating PID computations, coordinate transformations, and sensor fusion routines. The FPU is present in all SH7214 Group devices, including R5F72145ADFP#H1, and requires no external coprocessor.

What type of CAN protocol does the R5F72145ADFP#H1 support?

The R5F72145ADFP#H1 integrates a CAN v2.0B controller compliant with ISO 11898-1:2003, supporting both standard (11-bit) and extended (29-bit) identifier frames, error confinement, and automatic retransmission. It features 32 message objects with programmable acceptance filtering and flexible bit timing configuration - enabling interoperability with CANopen, DeviceNet, and custom industrial fieldbus protocols. No external CAN transceiver is included; CTX0/CRX0 pins require connection to a physical-layer IC.

Is the R5F72145ADFP#H1 pin-compatible with other SH7214 Group microcontrollers?

Yes, the R5F72145ADFP#H1 is pin-compatible with other members of the SH7214 Group in the same 144-pin LQFP package, including R5F72144ADFP#H1 and R5F72146ADFP#H1. All share identical pin assignments for power, clocks, reset, GPIO, ADC, CAN, SCI, and MTU2S functions. Differences lie only in internal memory size and peripheral enablement - allowing hardware reuse across product variants during design scaling or cost optimization.

What is the Flash memory endurance and data retention specification for the R5F72145ADFP#H1?

The R5F72145ADFP#H1 features 512 KB of on-chip Flash memory rated for 100,000 write/erase cycles and 20 years of data retention at +85°C. Each Flash block includes built-in ECC (error-correcting code) for single-bit error correction and double-bit error detection, ensuring reliability during over-the-air firmware updates and long-term deployment in unattended industrial equipment. Programming is performed via on-chip bootloader or JTAG interface without external high-voltage supply.