Renesas R7FA2E3072DFL#BA0

Overview

R7FA2E3072DFL#BA0 from Renesas is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 64-KB code flash, 16-KB SRAM, a 12-bit ADC with 13 input channels, and integrated safety functions including SRAM parity, flash protection, and CAC-based clock accuracy monitoring - deployed in industrial sensor nodes requiring deterministic real-time control and functional safety compliance.

For engineers reviewing the R7FA2E3072DFL#BA0 datasheet, R7FA2E3072DFL#BA0 pinout, R7FA2E3072DFL#BA0 application, or R7FA2E3072DFL#BA0 equivalent, key selection criteria include its -40°C to +85°C temperature grade, 48-pin LQFP package with 37 GPIOs (including 3× 5-V-tolerant pins), dual watchdog timers (WDT/IWDT), and hardware safety accelerators (CRC, DOC, AGT) for IEC 61508-compliant embedded systems.

Technical Context

The R7FA2E3072DFL#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its system-level timing relies on multiple independent clock sources: HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15-kHz oscillator - all managed via the Clock Frequency Accuracy Measurement Circuit (CAC) for runtime validation.

Peripheral integration centers on deterministic event-driven operation: the Event Link Controller (ELC) enables direct hardware-to-hardware triggering between modules (e.g., ADC conversion start → DTC transfer → CRC calculation), while the Data Transfer Controller (DTC) offloads CPU during memory-mapped transfers - critical for low-latency analog acquisition and motor control in battery-powered edge devices.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (PLQP0048KB-B), 7 mm × 7 mm, 0.5 mm pitch, exposed pad not electrically connected - suitable for automated optical inspection and thermal management in compact industrial enclosures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3072DFL#BA0, the R7FA2E3073CFL#BA0 extends thermal reliability for harsh environments without altering pinout or firmware, while R7FA2E3052DFL#BA0 trades flash capacity and analog channel count for lower unit cost - both retain identical safety features and low-power architecture.

Availability

R7FA2E3072DFL#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, PLC I/O modules, and home appliance motor controllers requiring stable component supply across multi-year production cycles.

Supply support for R7FA2E3072DFL#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, and power solutions for industrial, automotive, and IoT markets - delivering high-reliability silicon with integrated functional safety and energy efficiency.

The RA2E3 Group targets cost-sensitive, ultra-low-power embedded applications demanding Arm-based scalability and certified safety features - designed specifically for battery-operated sensors, smart meters, and industrial edge devices.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E3072DFL#BA0?

The R7FA2E3072DFL#BA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture, operating at a maximum frequency of 48 MHz. It includes a single-cycle integer multiplier and 19-cycle divider, with an Arm Memory Protection Unit (MPU) supporting eight memory regions - enabling secure, deterministic real-time execution in safety-critical applications.

Does the R7FA2E3072DFL#BA0 support hardware safety features required for IEC 61508 certification?

Yes, the R7FA2E3072DFL#BA0 integrates multiple hardware safety mechanisms including SRAM parity error detection, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), and Independent Watchdog Timer (IWDT) - collectively supporting SIL2 compliance per IEC 61508 without external safety monitors.

What analog capabilities does the R7FA2E3072DFL#BA0 provide for sensor interfacing?

The R7FA2E3072DFL#BA0 includes a 12-bit successive-approximation ADC (ADC12) with up to 13 selectable input channels, internal temperature sensor (TSN), and configurable reference inputs (VREFH0/VREFL0). It supports ratiometric measurements, internal reference use, and direct connection to precision analog front-ends - enabling high-accuracy environmental and current sensing in industrial applications.

How many communication interfaces are integrated into the R7FA2E3072DFL#BA0, and what protocols do they support?

The R7FA2E3072DFL#BA0 integrates four Serial Communications Interfaces (SCI), one I²C bus interface (IIC), and one Serial Peripheral Interface (SPI). Each SCI supports asynchronous UART, clock-synchronous serial, Simple I²C, Simple SPI, and ISO/IEC 7816 smart card protocols - allowing concurrent connectivity to sensors, EEPROMs, displays, and secure elements using shared pin resources.

What package type and pin count does the R7FA2E3072DFL#BA0 use, and is it RoHS-compliant?

The R7FA2E3072DFL#BA0 uses a 48-pin LQFP package (PLQP0048KB-B), measuring 7 mm × 7 mm with 0.5 mm pitch and Sn-only (lead-free) terminal plating - fully RoHS-compliant and compatible with standard surface-mount assembly processes. It provides 37 general-purpose I/O pins, including three 5-V-tolerant inputs for legacy system interfacing.