Renesas R7FA6M1AD3CNB#AA0

Overview

R7FA6M1AD3CNB#AA0 from Renesas Electronics is a 32-bit Arm Cortex-M4 microcontroller with FPU, operating at up to 120 MHz, featuring 512 KB code flash, 256 KB SRAM, dual 12-bit ADCs with sample-and-hold, two 12-bit DACs, six high-speed analog comparators, and capacitive touch sensing (CTSU). It targets industrial HMI, motor control, and secure IoT edge nodes requiring real-time processing, analog signal conditioning, and USB/SDHI connectivity.

For engineers reviewing the R7FA6M1AD3CNB#AA0 datasheet, R7FA6M1AD3CNB#AA0 pinout, R7FA6M1AD3CNB#AA0 application, or R7FA6M1AD3CNB#AA0 equivalent, this device delivers deterministic real-time performance in a 64-pin QFN package with -40°C to +105°C operation, integrated security (SCE7), safety features (ECC, IWDT, CAC), and dual CAN/USBFS interfaces for robust embedded control.

Technical Context

The R7FA6M1AD3CNB#AA0 implements an Armv7E-M core with DSP extensions and single-precision FPU, supporting 4-GB address space and boundary scan debugging via JTAG/SWD. Its memory subsystem includes 512 KB zero-wait-state flash, 8 KB data flash (125k erase cycles), 256 KB SRAM (32 KB ECC-protected), and Memory Mirror Function for flexible firmware deployment.

Peripherals include two CAN 2.0B modules, seven SCIs with FIFO, dual I²C, dual SPI, QSPI, SDHI, USB 2.0 Full-Speed with on-chip transceiver, SSIE audio interface, and a dedicated Sampling Rate Converter (SRC) - all coordinated via Event Link Controller (ELC) for CPU-free inter-module triggering and DMA-assisted data movement across 8-channel DMAC and DTC.

Key Specifications

Pinout & Package

Packaged in a 64-pin QFN (PWQN0064LA-A) with 0.4 mm pitch, the R7FA6M1AD3CNB#AA0 provides compact thermal performance and PCB area efficiency for space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M4 microcontroller applications.

Compared with R7FA6M1AD3CNB#AA0, R7FA6M1AD3CFM offers identical functionality in a more manufacturable LQFP package, while R7FA6M2AD3CFM trades analog/fieldbus richness for networking capability - making R7FA6M1AD3CNB#AA0 optimal for cost-sensitive, analog-rich, dual-CAN edge nodes.

Availability

R7FA6M1AD3CNB#AA0 is available at Aetrix Electronics and suitable for industrial HMI, BLDC motor control, secure edge gateways, and medical sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA6M1AD3CNB#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with annual revenue exceeding $10 billion and design centers worldwide.

The R7FA6M1AD3CNB#AA0 belongs to the RA6M1 Group within Renesas' RA Family - engineered for scalable, secure, and real-time industrial and consumer edge applications demanding rich analog integration, human-machine interface capability, and functional safety compliance.

FAQ

What is the maximum operating frequency of the R7FA6M1AD3CNB#AA0?

The R7FA6M1AD3CNB#AA0 operates at a maximum frequency of 120 MHz using its Arm Cortex-M4 core with FPU. This clock speed is achievable with the on-chip PLL driven by the main oscillator (8–24 MHz) or high-speed on-chip oscillator (16/18/20 MHz), and is sustained across the full -40°C to +105°C temperature range with appropriate voltage (2.7–3.6 V).

Does the R7FA6M1AD3CNB#AA0 support USB device and host modes?

Yes, the R7FA6M1AD3CNB#AA0 USB 2.0 Full-Speed (USBFS) module supports both device and host modes per the USB 2.0 specification. It includes an on-chip transceiver, 10 configurable pipes, and supports full-speed (12 Mbps) and low-speed (1.5 Mbps, host only) transfers - enabling direct connection to PCs, peripherals, or USB mass storage devices without external PHY.

How many analog input channels does the R7FA6M1AD3CNB#AA0 provide?

The R7FA6M1AD3CNB#AA0 integrates two independent 12-bit ADC units: ADC12 Unit 0 supports up to 11 analog inputs, and Unit 1 supports up to 8 inputs. Two input channels are shared between units (AN005/AN105, AN006/AN106), yielding 17 unique analog input pins - all configurable with programmable gain amplifiers and sample-and-hold circuits for precision signal acquisition.

What security features are implemented in the R7FA6M1AD3CNB#AA0?

The R7FA6M1AD3CNB#AA0 includes Renesas' Secure Crypto Engine 7 (SCE7), providing hardware-accelerated AES-128/192/256, SHA256, RSA-2048, TRNG, and GHASH. It also features SRAM ECC, flash area protection, register write protection, illegal memory access detection, and Clock Frequency Accuracy Measurement Circuit (CAC) - collectively supporting secure boot, encrypted firmware updates, and tamper-resistant key storage.

Is the R7FA6M1AD3CNB#AA0 pin-compatible with other RA6M1 group members?

No, the R7FA6M1AD3CNB#AA0 is not pin-compatible with other RA6M1 variants due to its 64-pin QFN (PWQN0064LA-A) package - distinct from the 100-pin LGA/LQFP options. While it shares the same peripheral set and software compatibility with the RA6M1 family, physical layout requires dedicated PCB design; migration to R7FA6M1AD3CFM (64-pin LQFP) preserves pin count but changes footprint and pitch.