Renesas R7FA2E2A33CNJ#HA0

Overview

R7FA2E2A33CNJ#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 and DAC, integrated CAN interface, and hardware security (AES128/256, TRNG). It targets battery-powered industrial sensors and smart metering endpoints requiring functional safety support and extended temperature operation.

For engineers reviewing the R7FA2E2A33CNJ#HA0 datasheet, R7FA2E2A33CNJ#HA0 pinout, R7FA2E2A33CNJ#HA0 application, or R7FA2E2A33CNJ#HA0 equivalent, key selection criteria include its 20-pin HWQFN package, -40°C to +105°C industrial temperature grade, 16 KB flash capacity, dual low-power timers (AGTW), and I3C/SPI/SCI peripheral set for compact embedded control.

Technical Context

The R7FA2E2A33CNJ#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. Its clock system integrates HOCO/MOCO/LOCO oscillators with trim capability and includes dedicated IWDT and CAC for fail-safe timing validation.

System-level features include Event Link Controller (ELC) for CPU-free peripheral coordination, Data Transfer Controller (DTC) for autonomous memory transfers, and Port Output Enable for GPT (POEG) to safely manage PWM outputs during fault conditions - all optimized for deterministic real-time response in low-power modes.

Key Specifications

Pinout & Package

Package: 20-pin HWQFN (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS or left floating. Operating temperature range: -40°C to +105°C (industrial grade).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA2E2A33CNJ#HA0, the R7FA2E1A33CNJ#HA0 offers identical packaging and temperature grade but omits CAN and reduces flash to 16 KB, while the STM32G031K8T6 provides more flash and higher clock speed but sacrifices industrial temperature rating, CAN, I3C, and integrated safety/security blocks essential for certified embedded systems.

Availability

R7FA2E2A33CNJ#HA0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart utility meters, BLDC motor control modules, and IoT edge gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA2E2A33CNJ#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 design innovation through microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The RA2E2 Group targets ultra-low-power, cost-sensitive industrial and consumer applications with Arm Cortex-M23 cores, integrated analog, security, and functional safety features - designed specifically for battery-operated edge devices and smart infrastructure endpoints.

FAQ

What is the maximum operating frequency of the R7FA2E2A33CNJ#HA0?

The R7FA2E2A33CNJ#HA0 operates at a maximum frequency of 48 MHz using its Arm Cortex-M23 core. This speed is achievable with the high-speed on-chip oscillator (HOCO) configured at 48 MHz or via external crystal input. The device maintains full peripheral functionality and timing accuracy across its specified voltage (1.6–5.5 V) and temperature (-40°C to +105°C) ranges. All timing specifications in the R01DS0387EJ0150 datasheet assume this maximum clock rate.

Does the R7FA2E2A33CNJ#HA0 include a CAN interface?

Yes, the R7FA2E2A33CNJ#HA0 integrates a full CAN 2.0B controller compliant with ISO 11898-1, supporting bit rates up to 1 Mbps and featuring message RAM with filtering and FIFO capabilities. Unlike basic SCI-based CAN emulation, this is a dedicated hardware module with TX/RX buffers, error counters, and automatic retransmission - confirmed in Section 1.7 and Table 1.12 of the R01DS0387EJ0150 datasheet.

What package type and pin count does the R7FA2E2A33CNJ#HA0 use?

The R7FA2E2A33CNJ#HA0 uses a 20-pin HWQFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed die pad. This matches the "NJ" suffix in the part number per Renesas' numbering scheme (Figure 1.2). Pin assignments are documented in Figure 1.4 and Table 1.14 of the R01DS0387EJ0150 datasheet, confirming 20 signal pins plus VCC/VSS/VCL connections.

How much flash and SRAM memory does the R7FA2E2A33CNJ#HA0 have?

The R7FA2E2A33CNJ#HA0 contains 16 KB of code flash memory and 8 KB of SRAM with ECC protection. Its 2 KB data flash supports 100,000 program/erase cycles for parameter storage. These values are explicitly listed in Table 1.11 (Product List) and Section 1.1 (Function Outline) of the R01DS0387EJ0150 datasheet, distinguishing it from higher-flash variants like the R7FA2E2A73CNJ#HA0 (64 KB).

What is the operating temperature range for the R7FA2E2A33CNJ#HA0?

The R7FA2E2A33CNJ#HA0 is rated for industrial operation from -40°C to +105°C, indicated by the "3" in its part number (R7FA2E2A33CNJ#HA0 → "3" = -40°C to +105°C per Figure 1.2). This grade is validated per Renesas' qualification standards and supported by electrical characteristics in Section 2.1 of the R01DS0387EJ0150 datasheet, including LVD, CAC, and flash endurance specs across this full range.