Renesas R7FA4T1B93CFM#BA0

Overview

R7FA4T1B93CFM from Renesas is a 32-bit Arm® Cortex®-M33 microcontroller operating at up to 100 MHz, featuring 128 KB code flash, 4 KB data flash, and 40 KB SRAM. It integrates CAN FD, I3C, dual SPI, dual SCI, 12-bit ADC with PGA, dual 12-bit DAC, and TrustZone security-designed for industrial motor control, smart sensors, and secure edge nodes requiring real-time analog processing and robust communication.

For engineers reviewing the R7FA4T1B93CFM datasheet, R7FA4T1B93CFM pinout, R7FA4T1B93CFM application, or R7FA4T1B93CFM equivalent, key selection considerations include its 64-pin LQFP package, -40°C to +105°C operation, 2.7–3.6 V supply, and support for BLDC motor control via six GPT16E timers with complementary PWM outputs.

Technical Context

The R7FA4T1B93CFM implements Armv8-M architecture with TrustZone, enabling secure/non-secure execution environments with separate MPUs (8 regions each) and memory region attribution for flash and SRAM. Its dual-core timer subsystem includes six 16-bit GPT16E channels supporting three-phase BLDC PWM generation and two 32-bit AGT timers for low-power event counting.

Peripherals are tightly coupled via Event Link Controller (ELC), allowing direct hardware-triggered ADC conversions, DAC updates, and PWM starts without CPU intervention. The integrated Trigonometric Function Unit (TFU) accelerates sine/cosine and arctangent/sqrt(x²+y²) calculations-critical for field-oriented control (FOC) in motor drives.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA4T1BB3CFM, the R7FA4T1B93CFM trades flash capacity for cost-sensitive designs while retaining full peripheral compatibility; versus STM32H723ZGT6, it delivers superior motor control acceleration, tighter hardware security, and native CAN FD integration-reducing BOM count and design validation effort.

Availability

R7FA4T1B93CFM is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and secure industrial gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA4T1B93CFM 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 automotive, industrial, and IoT markets.

The RA4T1 Group targets cost-optimized, high-integrity applications demanding real-time performance, analog integration, and hardware-enforced security-specifically engineered for motor control, industrial automation, and secure edge sensing.

FAQ

What is the maximum operating frequency and core architecture of the R7FA4T1B93CFM?

The R7FA4T1B93CFM features an Arm Cortex-M33 core with a maximum operating frequency of 100 MHz. It implements the Armv8-M architecture with TrustZone security extensions, including secure and non-secure MPU regions, dual SysTick timers, and CoreSight ETM-M33 for trace debugging. This architecture enables deterministic real-time execution and hardware-isolated secure firmware partitions.

Does the R7FA4T1B93CFM support CAN FD, and what are its buffer configurations?

Yes, the R7FA4T1B93CFM integrates a CAN FD module compliant with ISO 11898-1, supporting both classical CAN and CAN FD frames. It provides 4 transmit buffers and 32 receive buffers, enabling high-throughput message handling in automotive and industrial networks. External CAN transceivers are required, and proper termination and common-mode filtering must be implemented per physical layer specifications.

How does the Trigonometric Function Unit (TFU) in the R7FA4T1B93CFM accelerate motor control algorithms?

The TFU in the R7FA4T1B93CFM hardware-accelerates sine/cosine and arctangent/sqrt(x²+y²) computations-core operations in Field-Oriented Control (FOC). It computes sine and cosine simultaneously, or arctangent and magnitude concurrently, reducing typical software library latency by over 90%. This enables faster control loop execution (e.g., >20 kHz PWM switching) without consuming CPU cycles, improving motor efficiency and thermal management.

What analog peripherals are integrated into the R7FA4T1B93CFM, and how are they configured for sensor interfacing?

The R7FA4T1B93CFM integrates a 12-bit ADC12 with three sample-and-hold circuits and three programmable gain amplifiers (PGA), two 12-bit DAC12 channels, three high-speed analog comparators (ACMPHS), and an on-die temperature sensor (TSN). The PGA supports gains of 1× to 16×, allowing direct connection of low-amplitude sensors (e.g., thermocouples, bridge-based strain gauges) to ADC inputs without external signal conditioning-reducing BOM cost and board area.

What package and temperature grade does the R7FA4T1B93CFM use, and how many I/O pins are available?

The R7FA4T1B93CFM uses a 64-pin LQFP package (PLQP0064KB-C, 10 mm × 10 mm, 0.5 mm pitch) rated for -40°C to +105°C operation. It provides 45 general-purpose I/O pins, including 11 pins with 5-V tolerance, 46 internal pull-up resistors, and N-channel open-drain capability on all 45 I/Os-supporting mixed-voltage interfacing and robust noise immunity in industrial environments.