Renesas R7FA2E3073CNE#BA0

Overview

R7FA2E3073CNE#BA0 from Renesas Electronics is an ultra-low-power 48 MHz Arm® Cortex®-M23 microcontroller with 64-KB code flash, 16-KB SRAM, and a 12-bit ADC-designed for industrial sensor nodes, battery-powered HMI, and safety-aware edge controllers operating from 1.6 V to 5.5 V.

For engineers reviewing the R7FA2E3073CNE#BA0 datasheet, R7FA2E3073CNE#BA0 pinout, R7FA2E3073CNE#BA0 application, or R7FA2E3073CNE#BA0 equivalent, key selection criteria include its -40°C to +105°C operation, HWQFN-48 package with 37 I/O pins (3 × 5-V tolerant), dual watchdog timers (WDT/IWDT), and integrated safety features including SRAM parity, CAC, and ADC self-diagnosis.

Technical Context

The R7FA2E3073CNE#BA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting 8 regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (48 MHz), SOSC (32.768 kHz), and IWDT-dedicated 15 kHz oscillator-allowing independent fail-safe timing.

Peripheral integration includes four SCI channels (UART/SPI/I²C/Smart Card), one dedicated I²C, one SPI, two AGT timers for low-power event counting, six GPT16 channels (7 PWM outputs), and a GPT32 with dual PWM outputs-supporting brushless DC motor control via complementary U/V/W phase outputs.

Key Specifications

Pinout & Package

Packaged in a 48-pin HWQFN (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad, the R7FA2E3073CNE#BA0 provides 37 GPIOs, dedicated debug (SWDIO/SWCLK), clock inputs (XTAL/EXTAL/XCIN/XCOUT), analog supply (AVCC0/AVSS0/VREFH0/VREFL0), and peripheral-specific signals including GTIOCnA/B for PWM, AGTIO0/1 for event capture, and SCI/I²C/SPI multiplexed pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3072DNE#BA0, the R7FA2E3073CNE#BA0 adds +105°C qualification and retains identical safety features; versus R7FA2E2073CNE#AA0, it delivers certified functional safety capabilities-including CAC and DOC-required for industrial control and medical edge devices.

Availability

R7FA2E3073CNE#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, PLC I/O modules, and motor control edge nodes requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for R7FA2E3073CNE#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The RA2E3 group targets ultra-low-power, safety-aware microcontrollers for cost-sensitive industrial and consumer edge devices-emphasizing energy efficiency, functional safety, and seamless scalability within the RA ecosystem.

FAQ

What is the maximum operating frequency of the R7FA2E3073CNE#BA0?

The R7FA2E3073CNE#BA0 features an Arm Cortex-M23 core with a maximum operating frequency of 48 MHz. This speed is achievable using the high-speed on-chip oscillator (HOCO) or an external crystal up to 20 MHz with PLL multiplication. The device maintains full peripheral functionality-including ADC sampling and PWM generation-at this clock rate, as verified in the R01DS0411EJ0130 datasheet Section 1.1.

Does the R7FA2E3073CNE#BA0 support functional safety standards?

Yes, the R7FA2E3073CNE#BA0 integrates multiple hardware-based safety mechanisms-including SRAM parity error detection, Flash area protection, Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, Data Operation Circuit (DOC), and Independent Watchdog Timer (IWDT)-enabling compliance with IEC 61508 SIL2 and ISO 13849 PL e requirements when implemented per Renesas' safety manual. These features are active by default and documented in R01DS0411EJ0130 Sections 1.1 and 2.2.

What package type and pin count does the R7FA2E3073CNE#BA0 use?

The R7FA2E3073CNE#BA0 uses a 48-pin HWQFN package (7 mm × 7 mm, 0.5 mm pitch) with an exposed thermal pad. It provides 37 general-purpose I/O pins, 3 of which are 5-V tolerant (P400, P401, P407), and supports industrial temperature range (-40°C to +105°C). Pin assignments are fully detailed in Figure 1.3 and Table 1.14 of the R01DS0411EJ0130 datasheet.

How many ADC channels does the R7FA2E3073CNE#BA0 support?

The R7FA2E3073CNE#BA0 integrates a 12-bit successive approximation ADC (ADC12) with up to 13 selectable analog input channels: AN000–AN002, AN005–AN010, and AN019–AN022. It also supports internal sources including the on-die temperature sensor (TSN) and internal reference voltage. Conversion results are accessible via DMA or interrupt, as specified in Table 1.8 and Section 2.2.3 of R01DS0411EJ0130.

Can the R7FA2E3073CNE#BA0 operate from a single 3.3 V supply?

Yes, the R7FA2E3073CNE#BA0 operates across a wide VCC range of 1.6 V to 5.5 V, making 3.3 V a fully supported and commonly used supply voltage. At 3.3 V, all peripherals-including the 48 MHz CPU, 12-bit ADC, and communication interfaces-function per specification. Decoupling requires 0.1 µF ceramic capacitors on VCC/VSS, AVCC0/AVSS0, and VREFH0/VREFL0, as defined in Section 2.1 of R01DS0411EJ0130.