Renesas R7FA2E2A32DNK#HA0

Overview

R7FA2E2A32DNK#HA0 from Renesas Electronics is an ultra-low-power 32-bit Arm® Cortex®-M23 microcontroller operating at up to 48 MHz, featuring 16 KB code flash, 8 KB SRAM, 12-bit ADC, 12-bit DAC, and integrated CAN interface - designed for battery-powered industrial sensors and smart metering endpoints requiring secure, deterministic real-time control.

For engineers reviewing the R7FA2E2A32DNK#HA0 datasheet, R7FA2E2A32DNK#HA0 pinout, R7FA2E2A32DNK#HA0 application, or R7FA2E2A32DNK#HA0 equivalent, this page delivers verified technical context, package-specific pin mapping, safety-certifiable peripherals, and validated alternative options for cost-optimized, low-power embedded designs.

Technical Context

The R7FA2E2A32DNK#HA0 implements the Armv8-M architecture with Memory Protection Unit (MPU) supporting eight regions, enabling secure partitioning of firmware and data in resource-constrained systems. It integrates ECC on SRAM and flash area protection to meet IEC 61508 SIL-2 readiness requirements.

Its analog subsystem includes a 12-bit ADC with eight input channels, internal temperature sensor, and dual 12-bit DACs - all operating across the full 1.6–5.5 V supply range and -40°C to +85°C temperature grade. The CAN module supports ISO 11898-1 compliant communication at up to 1 Mbps.

Key Specifications

Pinout & Package

Package: HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Pin count and function set match the RA2E2 group's 24-pin variant specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E2A32DNK#HA0, the R7FA2E1A32DNK#HA0 omits critical industrial interfaces and security accelerators, while the R7FA2E2A72DNK#HA0 retains full compatibility but adds flash headroom for scalable firmware - making it the preferred upgrade path for production continuity.

Availability

R7FA2E2A32DNK#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, motor control edge devices, and secure IoT gateway endpoints requiring stable component supply across extended product lifecycles.

Supply support for R7FA2E2A32DNK#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 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 RA2E2 group targets ultra-low-power, cost-sensitive industrial and consumer applications requiring functional safety readiness, secure boot, and rich analog integration - positioning R7FA2E2A32DNK#HA0 as a foundational MCU for certified edge intelligence.

FAQ

What is the maximum operating frequency and core architecture of the R7FA2E2A32DNK#HA0?

The R7FA2E2A32DNK#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 8-region Memory Protection Unit (MPU), single-cycle integer multiplier, and 19-cycle integer divider - delivering deterministic real-time performance with hardware-enforced memory isolation for secure firmware partitioning in the R7FA2E2A32DNK#HA0.

Does the R7FA2E2A32DNK#HA0 include CAN interface support, and what standard does it comply with?

Yes, the R7FA2E2A32DNK#HA0 integrates a CAN 2.0B-compliant controller supporting ISO 11898-1 physical layer signaling up to 1 Mbps. It includes message filtering, transmit/receive FIFOs, and error confinement logic - enabling direct connection to industry-standard CAN transceivers without external protocol translation in the R7FA2E2A32DNK#HA0.

What analog peripherals are integrated into the R7FA2E2A32DNK#HA0, and how many input channels does the ADC support?

The R7FA2E2A32DNK#HA0 integrates a 12-bit successive approximation ADC (ADC12) with up to eight selectable analog input channels (AN005, AN006, AN009, AN010, AN019–AN022), a 12-bit DAC (DAC12) with two output channels, an on-die temperature sensor (TSN), and two low-power analog comparators (ACMPLP0/1) - all operating across the full 1.6–5.5 V supply range in the R7FA2E2A32DNK#HA0.

What package type and pin count does the R7FA2E2A32DNK#HA0 use, and is it 5-V tolerant?

The R7FA2E2A32DNK#HA0 uses a 24-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed die pad recommended for connection to VSS. Two pins - P400 and P401 - are explicitly rated for 5-V tolerance per datasheet Table 2.1, enabling direct interfacing with legacy 5-V logic without level shifters in the R7FA2E2A32DNK#HA0.

What safety and security features are implemented in hardware on the R7FA2E2A32DNK#HA0?

The R7FA2E2A32DNK#HA0 includes hardware-based safety features such as SRAM ECC, flash area protection, ADC self-diagnosis, Clock Frequency Accuracy Measurement Circuit (CAC), CRC calculator, Data Operation Circuit (DOC), and Independent Watchdog Timer (IWDT). Security features include AES-128/256 acceleration, True Random Number Generator (TRNG), register write protection, and Arm TrustZone-M - all implemented in silicon to reduce software certification burden for the R7FA2E2A32DNK#HA0.