Renesas R7FA4T1BB3CFM#BA0

Overview

R7FA4T1BB3CFM from Renesas is a 32-bit Arm® Cortex®-M33 microcontroller operating at up to 100 MHz, featuring 256 KB code flash, 4 KB data flash, 40 KB SRAM, CAN FD, I3C, dual SPI, dual SCI, 12-bit ADC with PGA, dual 12-bit DAC, and TrustZone® security-designed for industrial motor control and real-time embedded systems requiring functional safety and secure firmware updates.

For engineers reviewing the R7FA4T1BB3CFM datasheet, R7FA4T1BB3CFM pinout, R7FA4T1BB3CFM application, or R7FA4T1BB3CFM equivalent, this page delivers verified specifications, package mapping to 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), full pin function validation, and two confirmed alternative parts with documented technical and application differences.

Technical Context

The R7FA4T1BB3CFM implements Armv8-M architecture with TrustZone® enabling secure/non-secure execution states, dual Systick timers (secure and non-secure), PMSAv8 MPU with 8 regions per state, and CoreSight™ ETM-M33 for trace debugging. Its memory subsystem includes ECC-protected 8 KB SRAM and parity-protected 32 KB SRAM.

System-level features include Event Link Controller (ELC) for CPU-free peripheral chaining, 8-channel DMAC + DTC for autonomous data movement, Trigonometric Function Unit (TFU) for real-time sine/cosine/arctangent/sqrt(x²+y²) computation, and Clock Frequency Accuracy Measurement Circuit (CAC) for oscillator calibration-critical for CAN FD timing compliance and sensor fusion applications.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, exposed die pad (recommended to connect to VSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.

Compared with R7FA4M1AB3CFM, the R7FA4T1BB3CFM prioritizes CAN FD and motor control peripherals over connectivity; versus R7FA6T1AD3CFM, it offers cost-optimized 100 MHz operation with identical safety architecture but lower compute ceiling-ideal for cost-sensitive industrial drives.

Availability

R7FA4T1BB3CFM is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart power supplies, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and automotive-grade temperature qualification.

Supply support for R7FA4T1BB3CFM 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RA4T1 Group is designed specifically for real-time industrial control applications demanding functional safety, secure firmware updates, and deterministic motor control-leveraging Arm TrustZone and hardware accelerators like TFU and ELC.

FAQ

What is the maximum operating frequency and core architecture of the R7FA4T1BB3CFM?

The R7FA4T1BB3CFM features an Arm Cortex-M33 core operating at a maximum frequency of 100 MHz. It implements the Armv8-M architecture with security extensions, including TrustZone, PMSAv8 memory protection, and dual Systick timers for secure and non-secure execution states. This architecture enables deterministic real-time performance while maintaining hardware-enforced isolation for safety-critical firmware partitions.

Does the R7FA4T1BB3CFM support CAN FD, and what are its buffer configurations?

Yes, the R7FA4T1BB3CFM integrates a CAN FD module compliant with ISO 11898-1, supporting both classical CAN and CAN FD frames up to 5 Mbps. It provides 4 dedicated transmit buffers and 32 receive buffers, enabling high-throughput diagnostic messaging and firmware updates in automotive and industrial networks without CPU intervention.

What analog peripherals are integrated into the R7FA4T1BB3CFM, and how are they configured?

The R7FA4T1BB3CFM integrates a 12-bit ADC12 with 12 selectable input channels, 3 sample-and-hold circuits, and 3 programmable gain amplifiers; two 12-bit DAC12 outputs; three high-speed analog comparators (ACMPHS); and an on-die temperature sensor (TSN). These are mapped to dedicated pins (e.g., AN000–AN016, DA0/DA1, VCOUT) and support simultaneous sampling, PGA gain selection, and direct TSN-to-ADC routing for thermal monitoring.

What package type and pin count does the R7FA4T1BB3CFM use, and is it RoHS-compliant?

The R7FA4T1BB3CFM uses a 64-pin LQFP package (PLQP0064KB-C), measuring 10 mm × 10 mm with 0.5 mm pitch and an exposed die pad recommended for connection to VSS. It is RoHS-compliant and lead-free, with terminal material specified as Sn (tin-only) per the part number suffix 'A' in the Renesas marking scheme.

How does the R7FA4T1BB3CFM implement functional safety and security features?

The R7FA4T1BB3CFM implements Arm TrustZone® for hardware-isolated secure/non-secure execution, a Memory Protection Unit (MPU) with 8 regions per state, 128-bit unique ID, True Random Number Generator (TRNG), secure pin multiplexing, and configurable Low Voltage Detection (LVD0/LVD1/LVD2). These features collectively support IEC 61508 SIL2 and ISO 26262 ASIL-B certification requirements for safe and secure embedded control.