Renesas R7FA6T3BB3CFJ#AA0

Overview

R7FA6T3BB3CFJ#AA0 from Renesas is a 32-bit Arm® Cortex®-M33 microcontroller operating at up to 200 MHz, featuring 256 KB code flash, 4 KB data flash, 40 KB SRAM, USB Full-Speed, CANFD, I3C, and 12-bit ADC/DAC - designed for real-time motor control and industrial edge sensing in compact 32-pin LQFP packages.

For engineers reviewing the R7FA6T3BB3CFJ#AA0 datasheet, R7FA6T3BB3CFJ#AA0 pinout, R7FA6T3BB3CFJ#AA0 application, or R7FA6T3BB3CFJ#AA0 equivalent, key selection criteria include its 32-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) footprint, TrustZone-enabled security partitioning, integrated trigonometric function unit (TFU), and support for BLDC motor PWM generation via six GPT16E timers with complementary outputs.

Technical Context

The R7FA6T3BB3CFJ#AA0 implements Armv8-M architecture with TrustZone, supporting secure/non-secure MPU regions (8+8), dual SysTick timers, and CoreSight™ ETM-M33 trace. Its memory subsystem includes ECC-protected 8 KB SRAM and parity-protected 32 KB SRAM alongside 4 KB data flash rated for 100,000 P/E cycles.

System-level timing relies on multiple clock sources: MOSC (8–24 MHz), SOSC (32.768 kHz), HOCO/MOCO/LOCO oscillators, and PLL - all managed by Clock Frequency Accuracy Measurement Circuit (CAC) and Event Link Controller (ELC) for autonomous peripheral triggering without CPU intervention.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), exposed die pad recommended to connect to VSS. Pin count and I/O allocation match Table 1.16 (LQFP32 column) in R01DS0414EJ0140 Rev.1.40.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6T3BB3CFL#AA0 and R7FA6T3BB3CNH#AA0, the R7FA6T3BB3CFJ#AA0 offers the smallest PCB footprint among RA6T3 variants while retaining full TrustZone, TFU, and CANFD functionality - making it optimal for space-constrained motor control modules where thermal management is handled externally.

Availability

R7FA6T3BB3CFJ#AA0 is available at Aetrix Electronics and suitable for industrial motor control, smart power inverters, and factory automation sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for R7FA6T3BB3CFJ#AA0 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 delivering trusted embedded design innovation for automotive, industrial, infrastructure, and IoT applications.

The RA6T3 Group targets real-time motor control and industrial edge intelligence, integrating hardware accelerators (TFU), functional safety features, and communication interfaces optimized for deterministic motion control systems.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6T3BB3CFJ#AA0?

The R7FA6T3BB3CFJ#AA0 features an Arm Cortex-M33 core with a maximum operating frequency of 200 MHz. It implements the Armv8-M architecture with TrustZone security extension and revision r0p4-00rel0. The core includes dual SysTick timers (secure and non-secure), CoreSight™ ETM-M33 trace, and an Arm Memory Protection Unit supporting eight regions each for secure and non-secure memory spaces. This architecture enables deterministic real-time execution in safety-critical industrial applications.

Does the R7FA6T3BB3CFJ#AA0 support USB device functionality, and what are its interface capabilities?

Yes, the R7FA6T3BB3CFJ#AA0 integrates a USB 2.0 Full-Speed module (USBFS) that operates exclusively in device mode. It supports full-speed transfer (12 Mbps) as defined in USB Specification 2.0, includes an internal transceiver, and provides five configurable endpoints (pipe 0 and pipes 4–7). The device supports all standard USB transfer types (control, interrupt, bulk, isochronous) and uses dedicated VCC_USB and VSS_USB pins for noise-isolated analog power delivery - enabling direct connection to USB hosts for firmware updates and diagnostics without external PHY components.

How many analog-to-digital converter (ADC) channels and resolution does the R7FA6T3BB3CFJ#AA0 provide?

The R7FA6T3BB3CFJ#AA0 includes a 12-bit successive approximation ADC12 with up to 12 selectable analog input channels. It incorporates three sample-and-hold circuits and three programmable gain amplifiers (PGA) for signal conditioning. The ADC supports internal reference voltage and temperature sensor inputs, and its conversion results can be triggered by software, timers, or external events via ADTRG0. This configuration enables high-accuracy current/voltage sensing in motor control and power monitoring applications.

What peripheral timer resources are available on the R7FA6T3BB3CFJ#AA0 for motor control applications?

The R7FA6T3BB3CFJ#AA0 provides six General PWM Timer 16-bit Enhanced (GPT16E) channels and two Low Power Asynchronous General Purpose Timers (AGT). The GPT16E timers support complementary PWM outputs with programmable dead time, essential for 3-phase BLDC motor commutation. They integrate GTIU/GTIV/GTIW Hall sensor inputs and GTOUUP/GTOULO complementary outputs. The AGT timers operate independently from the main clock domain using LOCO (32.768 kHz), enabling precise timing during low-power states - critical for energy-efficient motor idle modes.

What security features does the R7FA6T3BB3CFJ#AA0 implement to support functional safety compliance?

The R7FA6T3BB3CFJ#AA0 implements Arm TrustZone for hardware-enforced isolation between secure and non-secure code execution domains. It allocates up to three regions in code flash, two in data flash, and three in SRAM for secure attribution, plus individual security settings per peripheral. Additional features include a 128-bit unique ID, True Random Number Generator (TRNG), and secure pin multiplexing to prevent runtime reconfiguration of critical I/O. These capabilities align with IEC 61508 SIL2 and ISO 26262 ASIL-B readiness requirements for industrial and automotive subsystems.