Renesas R7FA2E3072DNE#BA0

Overview

R7FA2E3072DNE#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 long battery life and functional safety compliance.

For engineers reviewing the R7FA2E3072DNE#BA0 datasheet, R7FA2E3072DNE#BA0 pinout, R7FA2E3072DNE#BA0 application, or R7FA2E3072DNE#BA0 equivalent, key selection criteria include its 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch), -40°C to +85°C industrial temperature grade, dual watchdog timers (WDT/IWDT), and support for SCI × 4, I2C × 1, SPI × 1, and RTC with calendar mode.

Technical Context

The R7FA2E3072DNE#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data. Its system-level safety features include independent watchdog timer (IWDT) with dedicated 15-kHz oscillator, Clock Frequency Accuracy Measurement Circuit (CAC), and Data Operation Circuit (DOC) for 16-bit arithmetic and conditional interrupt generation.

Power management integrates multiple low-power modes, Event Link Controller (ELC) for CPU-free peripheral coordination, and Data Transfer Controller (DTC) for autonomous memory transfers triggered by interrupts. The analog subsystem combines ADC12 with on-die temperature sensor (TSN), both referenced to internal or external VREFH0/VREFL0, supporting precision sensing in resource-constrained edge devices.

Key Specifications

Pinout & Package

Packaged in a 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, the R7FA2E3072DNE#BA0 supports high-density PCB layouts and efficient thermal dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3073CNE, R7FA2E3072DNE#BA0 trades extended temperature rating for lower unit cost while retaining identical safety and timing capabilities; versus R7FA2E1082DNE, it adds CAC, IWDT, and enhanced GPT resources essential for certified industrial designs.

Availability

R7FA2E3072DNE#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, BLDC motor controllers, and medical wearable hubs requiring stable component supply across multi-year production cycles.

Supply support for R7FA2E3072DNE#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 delivering trusted microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RA2E3 Group targets cost-sensitive, ultra-low-power industrial and consumer applications demanding functional safety, rich analog integration, and seamless scalability within the Arm-based RA ecosystem.

FAQ

What is the maximum operating frequency of the R7FA2E3072DNE#BA0?

The R7FA2E3072DNE#BA0 operates at a maximum frequency of 48 MHz using the Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) or external crystal (MOSC), and is fully supported across its entire 1.6 V to 5.5 V operating voltage range. All peripherals, including ADC12 and GPT timers, are rated for concurrent operation at this clock rate as specified in the R01DS0411EJ0130 datasheet.

Does the R7FA2E3072DNE#BA0 support functional safety standards?

Yes, the R7FA2E3072DNE#BA0 includes hardware safety features aligned with IEC 61508 SIL2 and ISO 26262 ASIL-B readiness, including SRAM parity error detection, flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), Independent Watchdog Timer (IWDT), and Data Operation Circuit (DOC). These are documented in Section 1.1 and Table 1.12 of the R01DS0411EJ0130 datasheet, and require proper configuration per Renesas Functional Safety Manual R01US0427EJ0100.

What package type does the R7FA2E3072DNE#BA0 use?

The R7FA2E3072DNE#BA0 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, identified by the "NE" suffix in its part number. This package is RoHS-compliant, Pb-free, and designed for reflow soldering. Pin assignments match Figure 1.3 and Table 1.14 in the R01DS0411EJ0130 datasheet, and require connection of the exposed pad to a non-electrical thermal plane on the PCB.

How many analog input channels does the ADC12 support on the R7FA2E3072DNE#BA0?

The ADC12 in the R7FA2E3072DNE#BA0 supports 13 analog input channels: AN000–AN002, AN005–AN010, and AN019–AN022. This includes dedicated routing for the on-die temperature sensor (TSN) and internal reference voltage, enabling self-calibration. Channel selection and scan sequencing are programmable via the ADC12 registers, and conversion results are accessible in 12-bit resolution with ±1 LSB integral nonlinearity as specified in Section 2.3 of R01DS0411EJ0130.

Can the R7FA2E3072DNE#BA0 operate from a single 3.3-V supply?

Yes, the R7FA2E3072DNE#BA0 operates reliably from a single 3.3-V supply across its full industrial temperature range (-40°C to +85°C). Both VCC and AVCC0 must be supplied at 3.3 V (with AVCC0 = VCC per Table 2.2), and decoupling capacitors (0.1 µF each) must be placed near VCC/VSS, AVCC0/AVSS0, and VREFH0/VREFL0 pins. This configuration meets all DC characteristics in the R01DS0411EJ0130 datasheet, including ADC accuracy and I/O drive strength.