Renesas R7FA6M1AD3CLJ#AC0

Overview

R7FA6M1AD3CLJ#AC0 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 CAN interfaces, USB 2.0 Full-Speed with on-chip transceiver, and Capacitive Touch Sensing Unit (CTSU). It targets industrial HMI, motor control, and secure connected devices requiring high-integrity analog, real-time communication, and extended temperature operation.

For engineers reviewing the R7FA6M1AD3CLJ#AC0 datasheet, R7FA6M1AD3CLJ#AC0 pinout, R7FA6M1AD3CLJ#AC0 application, or R7FA6M1AD3CLJ#AC0 equivalent, key selection considerations include its 100-pin LGA package, -40°C to +105°C rating, dual CAN 2.0B support, integrated SCE7 crypto engine, and CTSU-based touch interface - all validated for functional safety and security-critical embedded systems.

Technical Context

The R7FA6M1AD3CLJ#AC0 implements an Armv7E-M core with DSP extensions and single-precision FPU, enabling deterministic real-time signal processing. Its memory subsystem includes ECC-protected SRAM (32 KB), parity-checked SRAM (224 KB), and 8 KB data flash rated for 125,000 erase/write cycles.

Peripheral integration centers on hardware acceleration and autonomy: Event Link Controller (ELC) enables CPU-free peripheral chaining; dual SDHI controllers support SDXC/SDHC cards; QSPI interfaces serial flash; and GPT32EH timers deliver 480 MHz PWM resolution for BLDC motor control with POEG safety output disable.

Key Specifications

Pinout & Package

Package: 100-pin LGA (7 mm × 7 mm, 0.65 mm pitch), RoHS-compliant Sn terminal finish, rated for industrial temperature range (-40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FA6M1AD3CLJ#AC0, the R7FA6M2AD3CFP offers Ethernet and more RAM but sacrifices CTSU and uses LQFP instead of LGA, while the R7FA6T1AD3CFM trades connectivity and memory for motor-specific timing precision and smaller 64-pin packaging - making R7FA6M1AD3CLJ#AC0 optimal for balanced HMI + control + security applications in compact, thermally demanding layouts.

Availability

R7FA6M1AD3CLJ#AC0 is available at Aetrix Electronics and suitable for industrial HMI, BLDC motor control, secure IoT gateways, and medical diagnostic devices requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R7FA6M1AD3CLJ#AC0 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 applications.

The R7FA6M1AD3CLJ#AC0 belongs to the RA6M1 Group within Renesas' RA Family - designed specifically for scalable, secure, and real-time industrial and human-machine interface applications with integrated analog, connectivity, and safety features.

FAQ

What is the maximum operating frequency and core architecture of the R7FA6M1AD3CLJ#AC0?

The R7FA6M1AD3CLJ#AC0 features an Arm Cortex-M4 core with Floating Point Unit (FPU), operating at a maximum frequency of 120 MHz. It implements the Armv7E-M architecture with DSP instruction set and supports a 4-GB address space. This architecture enables high-performance real-time computation for motor control, audio processing, and cryptographic operations - all verified in the official Renesas R01DS0356EJ0120 datasheet for the R7FA6M1AD3CLJ#AC0.

Does the R7FA6M1AD3CLJ#AC0 support CAN FD or only classical CAN 2.0?

The R7FA6M1AD3CLJ#AC0 supports Controller Area Network (CAN) compliant with ISO 11898-1 (CAN 2.0A/CAN 2.0B), including both standard (11-bit) and extended (29-bit) message formats. It does not support CAN FD. The device integrates two independent CAN modules, each with up to 32 configurable mailboxes and FIFO modes - confirmed in Section 1.8 of the R01DS0356EJ0120 datasheet for the R7FA6M1AD3CLJ#AC0.

What package type and pin count does the R7FA6M1AD3CLJ#AC0 use?

The R7FA6M1AD3CLJ#AC0 uses a 100-pin LGA (Land Grid Array) package measuring 7 mm × 7 mm with 0.65 mm pitch, designated by the "LJ" suffix in its part number. This package supports industrial temperature range (-40°C to +105°C) and features 67 CMOS I/O pins, 14 of which are 5 V tolerant. The LGA form factor enables high-density PCB layouts with improved thermal performance - as specified in Table 1.14 and Figure 1.2 of the R7FA6M1 Group datasheet for R7FA6M1AD3CLJ#AC0.

How does the Capacitive Touch Sensing Unit (CTSU) function in the R7FA6M1AD3CLJ#AC0?

The R7FA6M1AD3CLJ#AC0 integrates a 12-channel Capacitive Touch Sensing Unit (CTSU) that measures electrostatic capacitance changes on connected electrodes to detect finger presence. It supports self- and mutual-capacitance configurations, includes built-in noise cancellation, and operates independently of the CPU via dedicated hardware. The CTSU is validated for robust operation in electrically noisy industrial environments - detailed in Section 1.10 and Section 46 of the R01DS0356EJ0120 datasheet for R7FA6M1AD3CLJ#AC0.

What security features are implemented in the R7FA6M1AD3CLJ#AC0's SCE7 module?

The R7FA6M1AD3CLJ#AC0's Secure Crypto Engine 7 (SCE7) provides hardware-accelerated cryptographic functions including AES128/192/256, SHA256, RSA/ECC, TRNG, and GHASH. It supports secure key storage, tamper-resistant operation, and constant-time execution to prevent side-channel attacks. The module also includes a 128-bit unique ID and integrates with the boot ROM for secure firmware authentication - fully documented in Section 1.12 and Section 36 of the R01DS0356EJ0120 datasheet for R7FA6M1AD3CLJ#AC0.