Renesas R7FA4T1B93CNE#BA0

Overview

R7FA4T1B93CNE#BA0 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, CANFD, I3C, dual SPI, dual SCI, 12-bit ADC with PGA, dual 12-bit DAC, and TrustZone® security. It targets industrial motor control, smart sensors, and secure edge nodes requiring real-time analog processing and robust communication.

For engineers reviewing the R7FA4T1B93CNE#BA0 datasheet, R7FA4T1B93CNE#BA0 pinout, R7FA4T1B93CNE#BA0 application, or R7FA4T1B93CNE#BA0 equivalent, key selection criteria include its QFN-48 package, -40°C to +105°C temperature grade, 29 GPIOs (6 with 5-V tolerance), and integrated trigonometric function unit (TFU) for motor control math acceleration.

Technical Context

The R7FA4T1B93CNE#BA0 implements Armv8-M architecture with TrustZone® enabling secure/non-secure execution states, dual MPU instances (8 regions each), and hardware-enforced memory isolation across flash, SRAM, and peripherals. Its clock system integrates HOCO/MOCO/LOCO oscillators with PLL and CAC for frequency accuracy validation.

It supports deterministic real-time operation via Event Link Controller (ELC) for CPU-free peripheral chaining, Data Transfer Controller (DTC) for interrupt-triggered transfers, and 8-channel DMAC. Analog subsystem includes three high-speed comparators (ACMPHS), temperature sensor (TSN), and programmable gain amplifiers (PGA) tied to ADC12 inputs.

Key Specifications

Pinout & Package

Packaged in a 48-pin QFN (PWQN0048KC-A) with exposed die pad recommended for VSS connection. Pin count matches LQFP-48 variant but offers lower profile and improved thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA4M1AB3CNE#BA0, the R7FA4T1B93CNE#BA0 provides CANFD and TFU at lower cost and power, while R7FA6T1BD3CNE#BA0 trades pin compatibility for higher PWM resolution and encoder support-making the R7FA4T1B93CNE#BA0 optimal for cost-sensitive, CANFD-dependent industrial motor control.

Availability

R7FA4T1B93CNE#BA0 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.

Supply support for R7FA4T1B93CNE#BA0 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets with emphasis on reliability, security, and energy efficiency.

The RA4T1 Group is designed specifically for real-time industrial control applications demanding CANFD connectivity, analog signal processing, and hardware-accelerated motor algorithms-all within a compact, thermally efficient QFN package.

FAQ

What is the maximum operating frequency of the R7FA4T1B93CNE#BA0?

The R7FA4T1B93CNE#BA0 operates at a maximum frequency of 100 MHz using its Arm Cortex-M33 core. This speed is achievable with the on-chip PLL locked to the main clock oscillator (MOSC) or high-speed on-chip oscillator (HOCO). The R7FA4T1B93CNE#BA0 maintains full peripheral functionality-including CANFD, ADC sampling, and GPT PWM generation-at this frequency, validated across the full -40°C to +105°C operating range.

Does the R7FA4T1B93CNE#BA0 support CAN Flexible Data-Rate (CANFD)?

Yes, the R7FA4T1B93CNE#BA0 integrates a CANFD module compliant with ISO 11898-1, supporting both classical CAN frames and CANFD frames with data rates up to 5 Mbps. It provides 4 transmit buffers and 32 receive buffers, with dedicated CTX0/CRX0 pins. The R7FA4T1B93CNE#BA0's CANFD implementation includes bit-rate switching, CRC-17/21, and flexible payload length-enabling automotive and industrial diagnostics with higher throughput than legacy CAN.

What analog peripherals are included in the R7FA4T1B93CNE#BA0?

The R7FA4T1B93CNE#BA0 includes a 12-bit ADC12 with 12 input channels, 3 sample-and-hold circuits, and 3 programmable gain amplifiers (PGA); two 12-bit DAC12 outputs; three high-speed analog comparators (ACMPHS); and an on-die temperature sensor (TSN). These analog resources are directly accessible via dedicated pins (AN0n, DA0/DA1, VCOUT, IVREFn, etc.) and can be triggered synchronously using GPT or AGT timers-making the R7FA4T1B93CNE#BA0 suitable for precision current sensing and closed-loop control.

Is the R7FA4T1B93CNE#BA0 pin-compatible with other RA4T1 variants?

Yes, the R7FA4T1B93CNE#BA0 shares identical pinout with other 48-pin RA4T1 variants including R7FA4T1BB3CNE#BA0 and R7FA4T1B93CFL#BA0 (LQFP-48), confirmed by Renesas' official pin assignment diagrams (Figure 1.4 and 1.5). All 48-pin packages-QFN and LQFP-support identical signal mapping, allowing drop-in replacement between flash variants (128 KB vs 256 KB) without PCB redesign. However, migration to 32-pin or 64-pin variants requires layout changes.

What security features does the R7FA4T1B93CNE#BA0 provide?

The R7FA4T1B93CNE#BA0 implements Arm TrustZone® for Armv8-M, enabling hardware-isolated secure and non-secure execution states. It includes secure MPU (8 regions), non-secure MPU (8 regions), TrustZone-peripheral attribution, 128-bit unique ID, and True Random Number Generator (TRNG). These features are factory-configured and active upon reset-providing foundational security for secure boot, encrypted firmware updates, and protected key storage without external security ICs.