Renesas R7FA2E1A93CFM#AA0

Overview

R7FA2E1A93CFM#AA0 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 128-KB code flash, 16-KB SRAM, a 12-bit ADC, Capacitive Sensing Unit (CTSU2), and integrated security (AES128/256, TRNG). It targets battery-powered HMI, industrial sensors, and smart home control nodes requiring robust safety features and extended runtime.

For engineers reviewing the R7FA2E1A93CFM#AA0 datasheet, R7FA2E1A93CFM#AA0 pinout, R7FA2E1A93CFM#AA0 application, or R7FA2E1A93CFM#AA0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade, 64-pin LQFP (0.5 mm pitch) package, CTSU2-based touch interface support, dual watchdog timers (WDT/IWDT), and hardware CRC/DOC for functional safety compliance.

Technical Context

The R7FA2E1A93CFM#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data. Its clock system integrates multiple oscillators (HOCO/MOCO/LOCO/SOSC/MOSC) with CAC for real-time frequency accuracy monitoring-critical for time-sensitive sensor fusion and RTC applications.

Peripheral interconnect is managed via Event Link Controller (ELC) and Data Transfer Controller (DTC), allowing autonomous peripheral-to-peripheral triggering and DMA-like transfers without CPU intervention. Safety is reinforced by SRAM parity checking, flash area protection, ADC self-diagnosis, and independent IWDT with dedicated 15-kHz oscillator for fail-safe recovery.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), industrial-grade, Pb-free Sn termination, exposed die pad recommended to connect to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E1A92DFM#AA0, the R7FA2E1A93CFM#AA0 adds SOSC support for accurate RTC across industrial temperatures; versus R7FA2E1A73CFM#AA0, it doubles flash capacity for complex GUI or protocol stacks without sacrificing power or security.

Availability

R7FA2E1A93CFM#AA0 is available at Aetrix Electronics and suitable for industrial automation, smart building controls, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature stress.

Supply support for R7FA2E1A93CFM#AA0 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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT markets.

The RA2E1 Group, including R7FA2E1A93CFM#AA0, was designed specifically for ultra-low-power, cost-sensitive embedded applications demanding robust security, capacitive touch, and functional safety-targeting smart sensors, HMI, and battery-operated edge nodes.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E1A93CFM#AA0?

The R7FA2E1A93CFM#AA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This core includes a single-cycle integer multiplier, 19-cycle divider, and Memory Protection Unit with eight configurable regions-enabling deterministic real-time performance and secure memory partitioning in the R7FA2E1A93CFM#AA0.

Does the R7FA2E1A93CFM#AA0 support capacitive touch sensing, and how many channels are available?

Yes, the R7FA2E1A93CFM#AA0 integrates the Capacitive Sensing Unit version 2 (CTSU2), supporting up to 30 touch channels with 18 CFC (current feedback circuit) resources. This allows implementation of sliders, wheels, and matrix keypads through dedicated TSxx pins and TSCAP, with built-in noise cancellation and auto-calibration-making the R7FA2E1A93CFM#AA0 ideal for touch-enabled HMI without external components.

What are the memory resources available on the R7FA2E1A93CFM#AA0?

The R7FA2E1A93CFM#AA0 includes 128-KB of code flash memory (with 100,000 program/erase cycles), 4-KB of data flash memory for parameter storage, and 16-KB of on-chip SRAM with parity error checking. These resources support secure firmware updates, sensor data buffering, and real-time task execution-all within the R7FA2E1A93CFM#AA0's ultra-low-power envelope.

Which communication interfaces does the R7FA2E1A93CFM#AA0 provide, and how many instances are included?

The R7FA2E1A93CFM#AA0 provides Serial Communications Interface (SCI) ×4-supporting UART, simple I²C, simple SPI, and Smart Card protocols-plus one dedicated I²C bus interface (IIC) and one Serial Peripheral Interface (SPI). This multi-protocol flexibility enables concurrent connectivity to displays, sensors, NFC tags, and legacy industrial peripherals in the R7FA2E1A93CFM#AA0 design.

What safety and security features are integrated into the R7FA2E1A93CFM#AA0?

The R7FA2E1A93CFM#AA0 integrates SRAM parity checking, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and AES128/256 encryption with True Random Number Generator (TRNG). These features collectively support functional safety standards and secure boot in the R7FA2E1A93CFM#AA0.