Renesas R7FA2E3053CFJ#BA0

Overview

R7FA2E3053CFJ#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, 12-bit ADC with 10 input channels, and integrated safety functions including SRAM parity, CAC, CRC, and IWDT - deployed in industrial sensor nodes and battery-powered HMI interfaces.

For engineers reviewing the R7FA2E3053CFJ#BA0 datasheet, R7FA2E3053CFJ#BA0 pinout, R7FA2E3053CFJ#BA0 application, or R7FA2E3053CFJ#BA0 equivalent, key selection criteria include its 32-pin LQFP package, -40°C to +105°C industrial temperature grade, 1.6–5.5 V wide supply range, and support for SCI × 3, I²C × 1, SPI × 1, RTC, AGT timers, and hardware safety monitors.

Technical Context

The R7FA2E3053CFJ#BA0 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 error detection and illegal memory access monitoring. 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.

Its analog subsystem includes a 12-bit successive-approximation ADC (ADC12) with 10 selectable input channels (AN000–AN002, AN005–AN010), internal temperature sensor (TSN), and dual reference voltage inputs (VREFH0/VREFL0). Power management supports multiple low-power modes, LVD with three configurable thresholds (LVD0–LVD2), and event-driven operation via ELC and DTC.

Key Specifications

Pinout & Package

Package: 32-pin LQFP (PLQP0032GB-A), 7 mm × 7 mm, 0.8 mm pitch, exposed pad not present (LQFP variant). Compatible with standard reflow profiles and automated optical inspection (AOI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E3073CFJ#BA0, the R7FA2E3053CFJ#BA0 trades flash capacity for lower unit cost while retaining full safety IP and analog capability; versus R7FA2E2053CFJ#HA0, it adds CAC, DOC, TSN, and 3 extra GPIOs essential for industrial diagnostics and sensor fusion.

Availability

R7FA2E3053CFJ#BA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, programmable logic relays, and asset tracking beacons requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA2E3053CFJ#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 automotive, industrial, and IoT markets, with over 40 years of embedded systems expertise.

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

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E3053CFJ#BA0?

The R7FA2E3053CFJ#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 real-time processing while maintaining low power consumption. The core includes a Memory Protection Unit (MPU) with 8 regions and supports TrustZone-M security extensions. All timing specifications in the R7FA2E3053CFJ#BA0 datasheet assume this 48 MHz clock source.

Does the R7FA2E3053CFJ#BA0 support functional safety standards such as IEC 61508?

Yes, the R7FA2E3053CFJ#BA0 integrates multiple hardware safety mechanisms required for IEC 61508 SIL2 implementation, including SRAM parity checking, 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. These features are documented in the R7FA2E3053CFJ#BA0 datasheet sections covering Safety and System Control.

How many analog input channels does the 12-bit ADC support on the R7FA2E3053CFJ#BA0?

The R7FA2E3053CFJ#BA0's ADC12 module supports 10 analog input channels: AN000, AN001, AN002, AN005, AN006, AN007, AN008, AN009, AN010, and ADTRG0 (used as external trigger). This count is confirmed in Table 1.12 (Function Comparison) and Table 1.14 (Pin List) of the R7FA2E3053CFJ#BA0 datasheet, distinguishing it from the 13-channel variant in 48-pin RA2E3 devices.

What is the package type and pin count of the R7FA2E3053CFJ#BA0?

The R7FA2E3053CFJ#BA0 uses a 32-pin LQFP package (PLQP0032GB-A), measuring 7 mm × 7 mm with 0.8 mm pitch. This is explicitly defined in the part numbering scheme (Figure 1.2) and verified in Table 1.11 (Product List) and Figure 1.4 (Pin Assignment) of the R7FA2E3053CFJ#BA0 datasheet. It is distinct from the 48-pin LQFP/HWQFN variants in the same RA2E3 family.

Which communication interfaces are available on the R7FA2E3053CFJ#BA0?

The R7FA2E3053CFJ#BA0 provides Serial Communications Interface (SCI) × 3 channels, I²C bus interface (IIC) × 1, and Serial Peripheral Interface (SPI) × 1. This is confirmed in Table 1.12 (Function Comparison) of the R7FA2E3053CFJ#BA0 datasheet, which shows SCI count reduced from 4 (in 48-pin variants) to 3 for 32-pin packages, while retaining full I²C and SPI functionality.