Renesas R7FA2E2A53CNK#BA1

Overview

R7FA2E2A53CNK#BA1 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 32 KB code flash, 8 KB SRAM, 12-bit ADC and DAC, integrated CAN interface, and industrial-grade temperature range (−40°C to +105°C) in a 24-pin HWQFN package. It targets battery-powered industrial sensors, smart metering endpoints, and low-cost motor control systems requiring functional safety and security.

For engineers reviewing the R7FA2E2A53CNK#BA1 datasheet, R7FA2E2A53CNK#BA1 pinout, R7FA2E2A53CNK#BA1 application, or R7FA2E2A53CNK#BA1 equivalent, key selection considerations include its 32 KB flash capacity (vs. 64 KB/16 KB variants), 24-pin HWQFN thermal performance, CAN/I3C/SPI dual-interface capability, and hardware-accelerated AES256+TRNG for secure firmware updates.

Technical Context

The R7FA2E2A53CNK#BA1 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling robust partitioning of secure and non-secure code execution. Its clock system integrates HOCO (48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated oscillator (15 kHz), all with trim support for ±1% accuracy across voltage and temperature.

Peripheral integration includes six 16-bit General PWM Timers (GPT16) with 11 total PWM outputs, two Low-Power Asynchronous General Purpose Timers (AGTW), and a dedicated Event Link Controller (ELC) that enables direct peripheral-to-peripheral triggering without CPU intervention-critical for deterministic real-time response in sensor fusion and motor control loops.

Key Specifications

Pinout & Package

Package: 24-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad (recommended connection to VSS), industrial temperature grade (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E2A73CNK#BA1, the R7FA2E2A53CNK#BA1 trades flash capacity for tighter cost control while retaining full CAN/I3C connectivity and safety features; versus R7FA2E1A53CNK#AA0, it adds critical bus resilience and hardware security primitives essential for certified industrial deployments.

Availability

R7FA2E2A53CNK#BA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering endpoints, and BLDC motor control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA2E2A53CNK#BA1 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 industrial, automotive, and enterprise applications.

The RA2E2 Group is designed for ultra-low-power, cost-sensitive industrial and consumer edge devices requiring functional safety, security, and seamless scalability within the RA ecosystem.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E2A53CNK#BA1?

The R7FA2E2A53CNK#BA1 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 an 8-region Memory Protection Unit (MPU) to enforce memory isolation for safety-critical tasks. The R7FA2E2A53CNK#BA1 achieves this speed across its full industrial temperature range (−40°C to +105°C) with stable power supply conditions.

Does the R7FA2E2A53CNK#BA1 support CAN communication, and what version is implemented?

Yes, the R7FA2E2A53CNK#BA1 integrates a CAN 2.0B-compliant controller supporting both standard (11-bit) and extended (29-bit) identifier frames, bit rates up to 1 Mbps, and automatic retransmission on error. It shares physical pins with the SCI9 peripheral (P914, P205), allowing flexible routing. The R7FA2E2A53CNK#BA1 does not support CAN FD but provides full CAN 2.0B functionality required for industrial fieldbus and automotive subsystem applications.

What are the flash and SRAM capacities of the R7FA2E2A53CNK#BA1, and how is data flash used?

The R7FA2E2A53CNK#BA1 contains 32 KB of code flash memory, 2 KB of data flash memory rated for 100,000 program/erase cycles, and 8 KB of SRAM with ECC protection. The data flash is specifically intended for non-volatile parameter storage-such as calibration coefficients, device configuration, or usage logs-without wearing out the main code flash. The R7FA2E2A53CNK#BA1 uses this structure to enable robust field firmware updates and persistent state retention across power cycles.

Which package and pin count does the R7FA2E2A53CNK#BA1 use, and what are its thermal specifications?

The R7FA2E2A53CNK#BA1 is supplied in a 24-pin HWQFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed die pad recommended for connection to VSS. It is qualified for industrial operation from −40°C to +105°C ambient temperature. This package provides superior thermal dissipation compared to the 20-pin variant and supports full peripheral pinout including all six GPT16 channels and CAN interface signals.

Does the R7FA2E2A53CNK#BA1 include hardware security features, and which standards do they support?

Yes, the R7FA2E2A53CNK#BA1 integrates AES128/256 encryption engines, a True Random Number Generator (TRNG), Clock Frequency Accuracy Measurement Circuit (CAC), Cyclic Redundancy Check (CRC) calculator, and Data Operation Circuit (DOC). These features collectively support secure boot, encrypted firmware updates, runtime integrity checks, and cryptographic key generation aligned with IEC 62443-3-3 and NIST SP 800-90B requirements. The R7FA2E2A53CNK#BA1 leverages these blocks to meet foundational security needs without external co-processors.