Renesas R7FA2E3052DFL#BA0

Overview

R7FA2E3052DFL#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 32-KB code flash, 16-KB SRAM, a 12-bit ADC with 10 input channels, and integrated safety functions including SRAM parity, CAC, CRC, and IWDT. It targets battery-powered industrial sensors and smart metering endpoints requiring deterministic real-time control under 1.6–5.5 V supply.

For engineers reviewing the R7FA2E3052DFL#BA0 datasheet, R7FA2E3052DFL#BA0 pinout, R7FA2E3052DFL#BA0 application, or R7FA2E3052DFL#BA0 equivalent, key selection criteria include its -40°C to +85°C industrial temperature rating, 48-pin LQFP package with 37 GPIOs (including 3× 5-V-tolerant pins), dual AGT timers for low-power event timing, and SCI × 3 / IIC × 1 / SPI × 1 connectivity for sensor hub and HMI interface designs.

Technical Context

The R7FA2E3052DFL#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data in resource-constrained embedded systems. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and LOCO oscillators with trim capability, plus Clock Frequency Accuracy Measurement Circuit (CAC) for runtime oscillator calibration.

Safety-critical operation is supported by independent watchdog timer (IWDT) with dedicated 15-kHz oscillator, SRAM parity error detection, flash area protection, ADC self-diagnosis, and register write protection via PRCR. The Event Link Controller (ELC) enables autonomous peripheral-to-peripheral triggering without CPU intervention, reducing latency and power in sensor acquisition sequences.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant Sn finish, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3072DFL#BA0, the R7FA2E3052DFL#BA0 trades flash capacity for cost optimization in fixed-function devices, while versus R7FA2E1082DFL#AA0 it delivers certified safety mechanisms essential for industrial deployment - making it the optimal balance of security, power efficiency, and BOM cost in constrained-edge applications.

Availability

R7FA2E3052DFL#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, factory HMI panels, and asset tracking beacons requiring stable component supply across multi-year production cycles.

Supply support for R7FA2E3052DFL#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 RA2E3 group is designed for ultra-low-power, safety-aware industrial edge devices - emphasizing energy efficiency, functional safety compliance, and seamless scalability within the RA ecosystem.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E3052DFL#BA0?

The R7FA2E3052DFL#BA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. This enables high-efficiency execution of real-time control tasks while maintaining low dynamic power consumption. The MPU supports eight memory protection regions, enhancing system reliability in multitask environments. All timing specifications in the R7FA2E3052DFL#BA0 datasheet assume this 48 MHz clock source unless otherwise noted.

How much flash and RAM does the R7FA2E3052DFL#BA0 include, and what are their endurance characteristics?

The R7FA2E3052DFL#BA0 integrates 32-KB of code flash memory and 16-KB of SRAM with parity protection. Its 2-KB data flash supports 100,000 program/erase cycles, making it suitable for frequent parameter logging or calibration storage. The SRAM parity feature detects single-bit errors in real time, triggering corrective interrupts - a key requirement for R7FA2E3052DFL#BA0 deployments in industrial control where data integrity is mission-critical.

Which analog peripherals are available on the R7FA2E3052DFL#BA0, and how many input channels does the ADC support?

The R7FA2E3052DFL#BA0 includes a 12-bit successive approximation ADC (ADC12) with 10 selectable analog input channels (AN000–AN010), plus an on-die temperature sensor (TSN) routed to the ADC. It also provides dedicated analog supply pins (AVCC0/AVSS0) and reference inputs (VREFH0/VREFL0) for precision measurement. This configuration supports accurate sensor interfacing in R7FA2E3052DFL#BA0-based environmental monitors and process controllers without external signal conditioning.

Does the R7FA2E3052DFL#BA0 support hardware safety features required for industrial certification?

Yes, the R7FA2E3052DFL#BA0 includes multiple hardware safety mechanisms: SRAM parity error detection, flash area protection, Clock Frequency Accuracy Measurement (CAC), Independent Watchdog Timer (IWDT) with dedicated oscillator, CRC calculator, Data Operation Circuit (DOC), and register write protection. These features align with IEC 61508 SIL-2 and UL 60730 Class B requirements - making R7FA2E3052DFL#BA0 appropriate for safety-relevant subsystems in programmable logic controllers and motor drives.

What package type and pin count does the R7FA2E3052DFL#BA0 use, and which pins are 5-V tolerant?

The R7FA2E3052DFL#BA0 is supplied in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with 37 general-purpose I/O pins. Three pins - P400, P401, and P407 - are explicitly rated for 5-V tolerance, enabling direct connection to legacy 5-V sensors or logic without external level shifters. This package matches pin-for-pin compatibility with other RA2E3 variants like R7FA2E3072DFL#BA0, simplifying design reuse.