Renesas R7FA4M2AB3CNE#AA0

Overview

R7FA4M2AB3CNE#AA0 from Renesas is a 100 MHz Arm Cortex-M33 microcontroller with 256 KB code flash, 8 KB data flash, 128 KB SRAM (with parity/ECC), USB 2.0 Full-Speed, QSPI, SDHI, dual 12-bit DACs, 12-bit ADC (7-channel), CAN, and integrated Secure Crypto Engine 9 with TrustZone for secure embedded control in industrial HMI and connected edge devices.

For engineers reviewing the R7FA4M2AB3CNE#AA0 datasheet, R7FA4M2AB3CNE#AA0 pinout, R7FA4M2AB3CNE#AA0 application, or R7FA4M2AB3CNE#AA0 equivalent, key selection considerations include its 48-pin QFN package, -40°C to +105°C operation, 2.7–3.6 V supply, tamper-resistant security architecture, and support for BLDC motor control via GPT PWM outputs.

Technical Context

The R7FA4M2AB3CNE#AA0 implements Armv8-M with TrustZone, enabling secure/non-secure execution environments with separate MPU regions for flash, SRAM, and peripherals. It integrates SCE9 for AES/RSA/ECC/SHA256 acceleration and supports device lifecycle management with secure key injection and tamper detection on up to three dedicated pins.

Its timing system includes PLL, HOCO/MOCO/LOCO oscillators, RTC with calendar mode and VBATT backup, and six low-power AGT timers. Communication is served by six SCI channels (UART/IIC/SPI/Manchester), two IIC, one SPI, one CAN, USBFS with internal transceiver, QSPI controller, SDHI, and SSIE audio interface.

Key Specifications

Pinout & Package

48-pin QFN package (PWQN0048KC-A) with 29 general-purpose I/O pins, 4 of which are 5-V tolerant, and dedicated analog, USB, CAN, QSPI, and debug (SWD) terminals. Pin layout optimized for compact industrial PCB layouts with thermal pad grounding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Arm Cortex-M33 microcontroller applications.

Compared with R7FA4M2AB3CNE#AA0, the R7FA4M2AC3CNE#AA0 offers higher code density without changing pinout or power profile, while R7FA4M2AB3CFM#AA0 trades compactness for I/O scalability-both retain identical security, analog, and communication capabilities.

Availability

R7FA4M2AB3CNE#AA0 is available at Aetrix Electronics and suitable for industrial HMI, smart energy metering, BLDC motor control, edge gateway nodes, and secure IoT endpoint applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA4M2AB3CNE#AA0 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 automotive, industrial, and enterprise markets.

The RA4M2 Group targets secure, high-performance industrial and IoT edge applications, combining Arm Cortex-M33 with hardware-accelerated cryptography, rich analog integration, and robust connectivity for next-generation embedded systems.

FAQ

What is the maximum operating frequency of the R7FA4M2AB3CNE#AA0?

The R7FA4M2AB3CNE#AA0 operates at a maximum frequency of 100 MHz using its Arm Cortex-M33 core. This speed is achievable with the on-chip PLL driven by the main clock oscillator (MOSC) or high-speed on-chip oscillator (HOCO). The device maintains full peripheral functionality-including USBFS, QSPI, and SDHI-at this frequency, as verified in the R01DS0367EJ0150 datasheet Rev.1.50.

Does the R7FA4M2AB3CNE#AA0 include an integrated USB transceiver?

Yes, the R7FA4M2AB3CNE#AA0 includes a fully integrated USB 2.0 Full-Speed transceiver. Pins USB_DP and USB_DM connect directly to the USB bus without requiring an external PHY. The module supports both device and host modes, all USB 2.0 transfer types, and has internal buffer memory supporting up to 10 pipes-enabling direct connection to PCs or USB peripherals.

How many analog-to-digital converter (ADC) input channels does the R7FA4M2AB3CNE#AA0 support?

The R7FA4M2AB3CNE#AA0 integrates a 12-bit successive approximation ADC (ADC12) with 7 configurable input channels, as specified in Table 1.15 of the RA4M2 datasheet. These channels support conversion of external analog signals, internal temperature sensor output, and internal reference voltage-enabling precise sensor monitoring in industrial and motor control applications.

What security features are implemented in the R7FA4M2AB3CNE#AA0?

The R7FA4M2AB3CNE#AA0 implements Arm TrustZone for hardware-isolated secure/non-secure execution, Secure Crypto Engine 9 (SCE9) with AES-128/256, RSA-2048/4096, ECC, and SHA224/256 acceleration, 128-bit unique ID, tamper detection on up to three dedicated pins, and secure key injection. These features are documented in Section 1.12 and Figure 1.1 of the R01DS0367EJ0150 datasheet.

What is the operating temperature range and package type of the R7FA4M2AB3CNE#AA0?

The R7FA4M2AB3CNE#AA0 is packaged in a 48-pin QFN (PWQN0048KC-A) with 7 mm × 7 mm footprint and 0.5 mm pitch, and is rated for industrial operation from -40°C to +105°C. This package includes an exposed thermal pad and supports reflow soldering per JEDEC J-STD-020 standards, as confirmed in Table 1.14 and Figure 1.2 of the official datasheet.