Renesas R5F72146HDFP#V1

Overview

R5F72146HDFP#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 2.0B controller, and 12-bit ADC. It operates at up to 80 MHz and targets industrial control and automotive body electronics applications requiring deterministic real-time performance.

For engineers reviewing the R5F72146HDFP#V1 datasheet, R5F72146HDFP#V1 pinout, R5F72146HDFP#V1 application, or R5F72146HDFP#V1 equivalent, key selection criteria include CAN interface support, Flash memory endurance (100K write/erase cycles), operating temperature range (−40°C to +105°C), and compliance with AEC-Q100 Grade 2 for automotive use.

Technical Context

The R5F72146HDFP#V1 implements the SH-2A CPU core with FPU support, enabling single-precision floating-point operations in hardware. It integrates a Clock Pulse Generator (CPG) supporting multiple clock sources - including crystal resonator (1–20 MHz), external clock input, and internal PLL - with programmable frequency division for system, peripheral, and USB clocks.

Its interrupt architecture includes a 16-level priority Interrupt Controller (INTC) and Data Transfer Controller (DTC) for autonomous peripheral-to-memory transfers without CPU intervention. The device supports three MCU operating modes (Single Chip, MCU Extension Modes 0–2), with configurable address mapping and boot selection via dedicated pins.

Key Specifications

Pinout & Package

The R5F72146HDFP#V1 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, optimized for industrial and automotive PCB layouts requiring thermal reliability and EMI robustness.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F72145HDFP#V1, the R5F72146HDFP#V1 provides greater firmware storage and runtime memory for complex communication stacks; versus R5F72147HDFP#V1, it trades extended temperature capability for cost optimization in non-extreme thermal zones.

Availability

R5F72146HDFP#V1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC nodes, motor control subsystems, and smart HVAC systems requiring stable component supply across multi-year production cycles.

Supply support for R5F72146HDFP#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 leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The R5F72146HDFP#V1 belongs to the SH7214 Group - a family of AEC-Q100 qualified 32-bit MCUs designed for real-time control in automotive body electronics and industrial automation where CAN connectivity and deterministic timing are critical.

FAQ

What is the maximum operating frequency of the R5F72146HDFP#V1?

The R5F72146HDFP#V1 operates at a maximum CPU frequency of 80 MHz, achieved via its on-chip PLL that multiplies an external crystal (e.g., 8 MHz) or clock source. This frequency is sustained across the full −40°C to +105°C operating range when supplied with 2.7–5.5 V, and is validated per Renesas' electrical characteristics testing in the SH7214 Group Hardware User's Manual Rev. 4.00.

Does the R5F72146HDFP#V1 include a CAN controller?

Yes, the R5F72146HDFP#V1 integrates a single CAN 2.0B-compliant controller supporting both standard and extended frame formats, with message objects, FIFO buffering, and automatic retransmission. It requires an external CAN transceiver (e.g., TJA1042) for physical layer interfacing, and is fully supported in Renesas' driver libraries and application notes for automotive network design.

What package type and pin count does the R5F72146HDFP#V1 use?

The R5F72146HDFP#V1 uses a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm pin pitch and an exposed thermal pad. This package is explicitly documented in the SH7214 Group Hardware User's Manual Rev. 4.00, Section 1.3 (Pin Assignment), and is compatible with standard surface-mount assembly processes used in automotive and industrial manufacturing.

Is the R5F72146HDFP#V1 qualified for automotive applications?

Yes, the R5F72146HDFP#V1 is AEC-Q100 Grade 2 qualified (−40°C to +105°C), meeting stress test requirements for automotive body electronics. Its qualification status is confirmed in Renesas' official product documentation and ordering information, and it is designated for use in non-safety-critical vehicle systems such as lighting control, climate modules, and door modules.

What development tools support the R5F72146HDFP#V1?

Renesas provides full toolchain support for the R5F72146HDFP#V1, including the e2 studio IDE, CS+ compiler, and E2 emulator for debugging. Evaluation boards such as the YRDKFX72146 (Renesas' reference design kit) enable rapid validation of CAN, ADC, and motor control functions - all documented in Application Note R01AN1329JJ0100 for the SH7214 Group.