Renesas R7FA4T1B93CFM#HA0

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, 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 sensor fusion systems.

For engineers reviewing the R7FA4T1B93CFM datasheet, R7FA4T1B93CFM pinout, R7FA4T1B93CFM application, or R7FA4T1B93CFM equivalent, key selection criteria include its 64-pin LQFP package, -40°C to +105°C operating range, integrated TFU for trigonometric acceleration, dual AGT timers for low-power event timing, and secure pin multiplexing supporting hardware-isolated peripheral access.

Technical Context

The R7FA4T1B93CFM implements Armv8-M architecture with TrustZone®, enabling secure/non-secure execution states, MPU_S/MPU_NS (8 regions each), and memory region attribution for flash/SRAM/peripherals. It integrates CoreSight™ ETM-M33 for trace and two SysTick timers-one secure, one non-secure-driven by LOCO or system clock.

Its system-level features include Event Link Controller (ELC) for CPU-free peripheral chaining, Data Transfer Controller (DTC) and 8-channel DMAC for zero-CPU data movement, and Clock Frequency Accuracy Measurement Circuit (CAC) for real-time oscillator calibration-critical for CAN FD timing compliance and deterministic I3C bus operation.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (PLQP0064KB-C), 10 mm × 10 mm, 0.5 mm pitch, with exposed die pad recommended for connection 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 identical real-time peripherals and security; versus R7FA6T1BH3CFM, it offers lower power and integrated TFU at the expense of peak clock speed and CAN FD buffer count.

Availability

R7FA4T1B93CFM is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart grid sensing nodes, and portable medical diagnostic equipment requiring stable component supply across extended temperature ranges.

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 industrial, automotive, and enterprise applications.

The RA4T1 Group targets cost-optimized, real-time industrial control with TrustZone security, CAN FD connectivity, and hardware acceleration (TFU) - designed specifically for motor drives, PLCs, and smart sensors demanding deterministic response and functional safety readiness.

FAQ

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

The R7FA4T1B93CFM features an Arm Cortex-M33 core operating at up to 100 MHz, implementing the Armv8-M architecture with TrustZone security extension and PMSAv8 memory protection. Its maximum frequency is achievable using the PLL with MOSC or HOCO clock sources, and it supports both secure and non-secure execution states with dedicated SysTick timers for each domain.

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

Yes, the R7FA4T1B93CFM 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 robust message queuing for real-time diagnostics and control in automotive and industrial networks.

What analog peripherals are included in the R7FA4T1B93CFM, and how are they configured?

The R7FA4T1B93CFM includes a 12-bit ADC12 with 3 sample-and-hold circuits and 3 programmable gain amplifiers (PGA), dual 12-bit DAC12 outputs, 3 high-speed analog comparators (ACMPHS), and an on-die temperature sensor (TSN). ADC inputs support pseudo-differential mode (e.g., PGAVSS000), and DAC outputs can serve as comparator references or sensor bias sources.

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

The TFU in the R7FA4T1B93CFM performs hardware-accelerated sine/cosine and arctangent/sqrt(x²+y²) computations, enabling real-time field-oriented control (FOC) without CPU intervention. It allows simultaneous calculation of sine/cosine pairs or arctangent/sqrt outputs-reducing FOC loop latency by >40% compared to software-based math libraries.

What package and pin count does the R7FA4T1B93CFM use, and what are its I/O capabilities?

The R7FA4T1B93CFM uses a 64-pin LQFP package (PLQP0064KB-C, 10 mm × 10 mm, 0.5 mm pitch) with 45 general-purpose I/O pins, 5 dedicated input-only pins, 46 pull-up resistors, 45 N-channel open-drain outputs, and 11 5-V-tolerant pins-supporting direct interfacing with legacy industrial sensors and actuators.