Renesas R7FA2E2A53CNK#HA0

Overview

R7FA2E2A53CNK#HA0 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 hardware security including AES-128/256 and TRNG. It targets battery-powered industrial sensors and smart metering systems requiring functional safety and secure firmware updates.

For engineers reviewing the R7FA2E2A53CNK#HA0 datasheet, R7FA2E2A53CNK#HA0 pinout, R7FA2E2A53CNK#HA0 application, or R7FA2E2A53CNK#HA0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature rating, 24-pin HWQFN (4 mm × 4 mm) package with 19 GPIOs, dual watchdog timers (WDT/IWDT), ECC-protected SRAM, and I3C/SPI/SCI communication interfaces supporting mixed-signal control in space-constrained edge nodes.

Technical Context

The R7FA2E2A53CNK#HA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data. Its clock system integrates HOCO (48 MHz), MOCO (8 MHz), LOCO (32.768 kHz), and IWDT-dedicated 15-kHz oscillator with trim capability for precision timing across voltage and temperature.

Peripheral integration includes six 16-bit General PWM Timers (GPT16) with 11 PWM outputs, two Low-Power Asynchronous General Purpose Timers (AGTW), Event Link Controller (ELC) for CPU-free peripheral chaining, and Data Transfer Controller (DTC) for autonomous memory transfers triggered by interrupts - all optimized for deterministic real-time response in low-power operation modes.

Key Specifications

Pinout & Package

Package: 24-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to connect to VSS or left floating. Pin count and I/O allocation match Renesas' RA2E2 group specification for 24-pin variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E2A53CNK#HA0, the R7FA2E2A73CNK#HA0 offers double flash capacity for complex firmware while maintaining pin compatibility, whereas the R7FA2E2A53CNJ#HA0 reduces I/O count and package size at the expense of peripheral channel availability - both require no schematic revision but differ in layout density and scalability headroom.

Availability

R7FA2E2A53CNK#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, BLDC motor controllers, and IoT edge gateways requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.

Supply support for R7FA2E2A53CNK#HA0 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 markets with emphasis on reliability, security, and energy efficiency.

The RA2E2 Group is designed for ultra-low-power, cost-sensitive industrial and consumer applications requiring Arm-based scalability, integrated analog, and hardware-accelerated security - R7FA2E2A53CNK#HA0 exemplifies this with its 32-KB flash variant targeting mid-tier edge intelligence.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E2A53CNK#HA0?

The R7FA2E2A53CNK#HA0 features an Arm Cortex-M23 core compliant with the Armv8-M architecture and operates at a maximum frequency of 48 MHz. It includes an Arm Memory Protection Unit (MPU) with eight configurable regions, debug support via SW-DP, and single-cycle integer multiply/19-cycle divide capabilities - all confirmed in the R01DS0387EJ0150 datasheet Rev.1.50.

Does the R7FA2E2A53CNK#HA0 support CAN communication, and what version is implemented?

Yes, the R7FA2E2A53CNK#HA0 integrates a CAN module compliant with ISO 11898-1 (CAN 2.0B), supporting both standard and extended frame formats with programmable bit timing. This is explicitly listed under "Connectivity" in the device overview and verified in Table 1.7 of the R01DS0387EJ0150 datasheet.

What are the memory resources available on the R7FA2E2A53CNK#HA0?

The R7FA2E2A53CNK#HA0 provides 32-KB of code flash memory, 2-KB of data flash memory rated for 100,000 program/erase cycles, and 8-KB of on-chip SRAM with ECC or parity error checking. These values are specified in Table 1.2 and confirmed in the Product List (Table 1.11) of the R01DS0387EJ0150 datasheet.

Which package type and pin count does the R7FA2E2A53CNK#HA0 use?

The R7FA2E2A53CNK#HA0 uses a 24-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed die pad, as indicated by the "NK" suffix in the part number and confirmed in Figure 1.3 and Table 1.11 of the R01DS0387EJ0150 datasheet. It supports 19 general-purpose I/O pins with 5-V tolerance on P400 and P401.

What hardware security features are integrated into the R7FA2E2A53CNK#HA0?

The R7FA2E2A53CNK#HA0 includes AES-128/256 encryption acceleration, a True Random Number Generator (TRNG), Flash area protection, register write protection (PRCR), illegal memory access detection, and SRAM ECC - all documented in the "Security and Encryption" and "Safety" sections of the R01DS0387EJ0150 datasheet Rev.1.50.