Renesas R7FA2L1A93CFL#BA0

Overview

R7FA2L1A93CFL#BA0 from Renesas is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 128 KB code flash, 32 KB SRAM, 12-bit ADC/DAC, Capacitive Touch Sensing Unit (CTSU2), CAN interface, and integrated security features including AES128/256 and TRNG. It operates from 1.6–5.5 V across –40°C to +85°C and targets battery-powered HMI, industrial sensors, and smart home controllers.

For engineers reviewing the R7FA2L1A93CFL#BA0 datasheet, R7FA2L1A93CFL#BA0 pinout, R7FA2L1A93CFL#BA0 application, or R7FA2L1A93CFL#BA0 equivalent, key selection criteria include its 48-pin LQFP package, CTSU2-based touch support, dual 12-bit analog converters, CAN 2.0B compliance, and ECC-protected SRAM for functional safety-critical firmware.

Technical Context

The R7FA2L1A93CFL#BA0 implements Armv8-M architecture with Memory Protection Unit (MPU) and CoreSight™ debug infrastructure, enabling secure, scalable firmware deployment in resource-constrained edge nodes. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated oscillator for precise timing and fail-safe reset behavior.

System-level integration includes Event Link Controller (ELC) for CPU-free peripheral triggering, Data Transfer Controller (DTC) for autonomous memory moves, and Port Output Enable for GPT (POEG) to safely manage PWM outputs during fault conditions-critical for motor control and power management subsystems.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), industrial temperature grade (–40°C to +85°C), Pb-free Sn termination.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2L1AB3CFL#BA0, the R7FA2L1A93CFL#BA0 trades flash capacity for cost-sensitive volume production, while versus STM32L412KBU6 it delivers native CAN and CTSU2-reducing BOM count and layout complexity in HMI-equipped industrial devices.

Availability

R7FA2L1A93CFL#BA0 is available at Aetrix Electronics and suitable for smart appliance control panels, industrial sensor nodes, and home energy monitors requiring stable component supply, extended lifecycle assurance, and industrial-grade temperature performance.

Supply support for R7FA2L1A93CFL#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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RA2L1 group is designed for ultra-low-power, cost-sensitive embedded applications demanding integrated security, capacitive touch, and industrial connectivity-targeting battery-operated HMI, sensor fusion, and smart infrastructure endpoints.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2L1A93CFL#BA0?

The R7FA2L1A93CFL#BA0 features an Arm Cortex-M23 core operating at up to 48 MHz, implementing the Armv8-M architecture with TrustZone®-enabled security extensions. This architecture supports MPU-based memory isolation, secure boot partitions, and hardware-accelerated cryptographic operations essential for certified firmware deployments. The R7FA2L1A93CFL#BA0 achieves deterministic real-time response while maintaining sub-100 µA/MHz active power consumption.

Does the R7FA2L1A93CFL#BA0 support CAN communication, and what standards does it comply with?

Yes, the R7FA2L1A93CFL#BA0 integrates a Controller Area Network (CAN) module compliant with ISO 11898-1 (CAN 2.0A/B), supporting both standard (11-bit) and extended (29-bit) message formats. It provides 32 configurable mailboxes and FIFO modes but requires an external CAN transceiver for physical layer interfacing. The R7FA2L1A93CFL#BA0's CAN peripheral is validated for use in industrial automation and building control networks where electromagnetic noise resilience is critical.

How many capacitive touch channels does the R7FA2L1A93CFL#BA0 support, and what is the underlying technology?

The R7FA2L1A93CFL#BA0 includes the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 32 independent touch electrodes using mutual- or self-capacitance measurement. It features built-in noise cancellation, automatic calibration, and low-power scanning modes consuming less than 1 µA per active channel. The R7FA2L1A93CFL#BA0's CTSU2 is optimized for glass-over-metal and plastic overlay designs common in medical and appliance interfaces.

What analog peripherals are integrated into the R7FA2L1A93CFL#BA0, and what are their resolution and channel counts?

The R7FA2L1A93CFL#BA0 integrates a 12-bit successive-approximation ADC (ADC12) with up to 19 selectable input channels, a 12-bit DAC (DAC12) with single output (DA0), two low-power analog comparators (ACMPLP), and an on-die temperature sensor (TSN). All analog blocks share dedicated AVCC0/AVSS0 power domains and support internal reference voltage selection. These peripherals enable direct sensor interfacing, closed-loop control, and thermal monitoring without external signal conditioning in the R7FA2L1A93CFL#BA0.

What package type and pin count does the R7FA2L1A93CFL#BA0 use, and what are its key mechanical specifications?

The R7FA2L1A93CFL#BA0 uses a 48-pin LQFP package measuring 7 mm × 7 mm with 0.5 mm pitch, rated for industrial temperature range (–40°C to +85°C). It features 34 general-purpose I/O pins, 4 of which are 5-V tolerant, and includes dedicated pins for CTSU2, CAN, RTC, and debugging (SWDIO/SWCLK). The R7FA2L1A93CFL#BA0's footprint aligns with JEDEC MS-026 standards and supports automated optical inspection and reflow soldering.