Renesas R5F72145ADBG#U1

Overview

R5F72145ADBG#U1 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 2.0B controller, MTU2S timer, and 10-bit ADC. It operates at up to 64 MHz and targets industrial control and motor drive applications requiring deterministic real-time response.

For engineers reviewing the R5F72145ADBG#U1 datasheet, R5F72145ADBG#U1 pinout, R5F72145ADBG#U1 application, or R5F72145ADBG#U1 equivalent, key selection criteria include CAN interface support, Flash endurance (100K write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with IEC 61508 SIL2 functional safety requirements for embedded control systems.

Technical Context

The R5F72145ADBG#U1 implements the SH-2A CPU core with 32-bit integer execution, FPU support, and dual-issue superscalar architecture enabling high instruction throughput. It integrates a Clock Pulse Generator (CPG) with PLL, programmable frequency dividers, and oscillation stop detection for robust clock management.

Peripheral subsystems include a Data Transfer Controller (DTC) supporting scatter-gather DMA, an Interrupt Controller (INTC) with 128 interrupt sources and priority levels, and a Bus State Controller (BSC) managing external bus interface timing for SRAM, Flash, or peripheral expansion.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72144ADBG#U1 and R5F72146ADBG#U1, the R5F72145ADBG#U1 offers balanced memory (512 KB Flash/64 KB RAM), full CAN 2.0B capability, and proven qualification for industrial temperature grade - making it the optimal choice for volume production of mid-complexity embedded controllers where cost, footprint, and feature set must align precisely.

Availability

R5F72145ADBG#U1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, factory automation PLCs, and medical infusion pumps requiring stable component supply across multi-year production lifecycles.

Supply support for R5F72145ADBG#U1 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 enterprise applications.

The SH7214 Group, including R5F72145ADBG#U1, was engineered for deterministic real-time control in resource-constrained embedded systems - emphasizing low-latency interrupt handling, integrated motor control peripherals, and functional safety readiness.

FAQ

What is the maximum operating frequency of the R5F72145ADBG#U1?

The R5F72145ADBG#U1 operates at a maximum CPU clock frequency of 64 MHz, achieved via its on-chip Clock Pulse Generator (CPG) with PLL multiplier. This frequency is fully supported across the specified industrial temperature range (−40°C to +85°C) and supply voltage (2.7–3.6 V), enabling tight real-time control loops in motor drive and automation applications. The R5F72145ADBG#U1 maintains timing compliance under worst-case voltage and temperature conditions per its electrical characteristics table.

Does the R5F72145ADBG#U1 support CAN FD?

No, the R5F72145ADBG#U1 integrates a CAN 2.0B controller compliant with ISO 11898-1, supporting data rates up to 1 Mbps and standard/extended frame formats. It does not implement CAN FD (Flexible Data-Rate) features such as variable bit rate switching or extended payload length. For CAN FD capability, consider the R5F72146ADBG#U1 variant, which optionally supports CAN FD depending on mask revision and configuration.

What debug interface does the R5F72145ADBG#U1 provide?

The R5F72145ADBG#U1 supports on-chip debugging via the E10A-USB emulator interface using the dedicated TDI, TDO, TCK, TMS, and TRST pins. It implements the IEEE 1149.1 JTAG boundary-scan standard and includes a built-in debug module compatible with Renesas CS+ and e2 studio IDEs. No external debug probe is required beyond the E10A-USB or compatible JTAG adapter for full breakpoint, watchpoint, and real-time trace functionality.

Is the R5F72145ADBG#U1 qualified for automotive applications?

The R5F72145ADBG#U1 is rated for industrial temperature range (−40°C to +85°C) and classified as "Standard" quality grade per Renesas documentation. While it powers numerous automotive body electronics modules, it is not AEC-Q100 qualified and lacks automotive-specific stress screening or failure-in-time (FIT) data. For production automotive applications requiring AEC-Q100 Grade 2 or 3 qualification, Renesas recommends the RH850/F1L series instead of the R5F72145ADBG#U1.

What is the Flash memory endurance specification for the R5F72145ADBG#U1?

The on-chip Flash memory in the R5F72145ADBG#U1 is rated for 100,000 write/erase cycles per sector, with data retention guaranteed for 20 years at +85°C. This endurance applies to both main and boot Flash banks and is validated under standard programming conditions (VCC = 3.3 V ±10%, TA = 25°C). The R5F72145ADBG#U1 includes hardware error correction (ECC) and sector protection mechanisms to maintain integrity during field updates.