Renesas R7FA2E3052DNH#AA0

Overview

R7FA2E3052DNH#AA0 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, 12-bit ADC with 10 input channels, and integrated safety functions including SRAM parity, CAC, CRC, and IWDT - deployed in battery-powered industrial sensors and smart metering endpoints.

For engineers reviewing the R7FA2E3052DNH#AA0 datasheet, R7FA2E3052DNH#AA0 pinout, R7FA2E3052DNH#AA0 application, or R7FA2E3052DNH#AA0 equivalent, key selection criteria include its 32-pin HWQFN package, -40°C to +85°C industrial temperature grade, 1.6–5.5 V wide supply range, and support for SCI×3, I²C×1, SPI×1, AGT×2, GPT16×6, and RTC - critical for cost-sensitive, low-power embedded control.

Technical Context

The R7FA2E3052DNH#AA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, debug via SW-DP, and core-level safety features including stack pointer monitoring and illegal memory access detection. It integrates a dedicated Clock Frequency Accuracy Measurement Circuit (CAC) for real-time clock validation and Independent Watchdog Timer (IWDT) with 15-kHz on-chip oscillator for fail-safe recovery.

Its system-level safety architecture includes Flash area protection, ADC self-diagnosis, Data Operation Circuit (DOC) for 16-bit arithmetic comparison, and Port Output Enable for GPT (POEG) to disable PWM outputs during fault conditions - all aligned with IEC 61508 functional safety requirements for SIL-2-capable subsystems.

Key Specifications

Pinout & Package

Package: 32-pin HWQFN (5 mm × 5 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant Sn finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3052DNH#AA0, the R7FA2E3052DFJ#AA0 offers identical functionality in a more serviceable LQFP package, while R7FA2E3072DNH#AA0 doubles flash capacity without changing footprint - enabling scalable firmware development across product variants.

Availability

R7FA2E3052DNH#AA0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, home energy monitors, and medical wearable sensors requiring stable component supply across multi-year production cycles.

Supply support for R7FA2E3052DNH#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RA2E3 Group targets cost-sensitive, ultra-low-power embedded applications with Arm Cortex-M23 cores, integrated safety features, and simplified toolchain support - designed for rapid development of certified industrial and consumer edge devices.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E3052DNH#AA0?

The R7FA2E3052DNH#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 8 configurable regions - delivering deterministic real-time performance with enhanced security for embedded control applications.

How much flash and RAM does the R7FA2E3052DNH#AA0 include, and what safety features are integrated?

The R7FA2E3052DNH#AA0 includes 32-KB of code flash memory, 2-KB of data flash memory, and 16-KB of SRAM with parity checking. Integrated safety features include SRAM parity error detection, Flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), Independent Watchdog Timer (IWDT), and register write protection - collectively supporting functional safety certification up to SIL-2.

Which package type and pin count does the R7FA2E3052DNH#AA0 use, and what are its thermal characteristics?

The R7FA2E3052DNH#AA0 uses a 32-pin HWQFN package (5 mm × 5 mm, 0.5 mm pitch) with an exposed thermal pad. It operates across an industrial temperature range of -40°C to +85°C and supports junction temperatures up to 105°C under recommended conditions - validated per Renesas datasheet R01DS0411EJ0130 Rev.1.30.

Does the R7FA2E3052DNH#AA0 support analog-to-digital conversion, and how many input channels are available?

Yes, the R7FA2E3052DNH#AA0 integrates a 12-bit successive approximation ADC (ADC12) with 10 selectable analog input channels (AN000–AN010). It supports internal temperature sensor (TSN) and reference voltage inputs, and includes features such as ADC self-diagnosis and programmable sample-and-hold timing - enabling high-accuracy sensor interfacing in environmental and industrial monitoring systems.

What communication interfaces are available on the R7FA2E3052DNH#AA0, and how many instances of each are implemented?

The R7FA2E3052DNH#AA0 provides Serial Communications Interface (SCI) × 3 channels, I²C bus interface (IIC) × 1 channel, and Serial Peripheral Interface (SPI) × 1 channel. Each SCI supports asynchronous UART, simple I²C, simple SPI, and smart card modes; the I²C module conforms to NXP I²C specifications; and the SPI supports full-duplex synchronous communication - meeting requirements for sensor fusion, display control, and wired/wireless connectivity.