Renesas R7FS3A6783A01CNE#BA0

Overview

R7FS3A6783A01CNE#BA0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3A6 Group, featuring 2 MB flash, 512 KB SRAM, operating at up to 120 MHz, with integrated USB 2.0 FS host/device, CAN FD, and hardware crypto acceleration (AES-128/256, SHA-256, TRNG). It targets industrial HMI and secure edge node applications requiring real-time control and connectivity.

For engineers reviewing the R7FS3A6783A01CNE#BA0 datasheet, R7FS3A6783A01CNE#BA0 pinout, R7FS3A6783A01CNE#BA0 application, or R7FS3A6783A01CNE#BA0 equivalent, key selection criteria include its dual-bank flash for safe firmware updates, CAN FD support up to 5 Mbps, and integrated security IP enabling secure boot and encrypted communication without external co-processors.

Technical Context

The R7FS3A6783A01CNE#BA0 implements an ARM Cortex-M4F core with FPU and MPU, executing from on-chip flash with 2-cycle zero-wait-state access at 120 MHz. Its system architecture includes dual-bank flash (1 MB + 1 MB), 512 KB SRAM split into 384 KB general-purpose and 128 KB tightly coupled memory (TCM), and a multi-layer AHB/APB bus matrix supporting concurrent peripheral access.

Peripheral integration includes one USB 2.0 Full-Speed controller (host/device/OTG), two CAN FD controllers (ISO 11898-1:2015 compliant), four 12-bit SAR ADCs (up to 12 channels, 1.0 MSps aggregate), and a dedicated hardware crypto engine supporting AES-128/256 (ECB/CBC/CTR/GCM), SHA-256, and True Random Number Generation - all accessible via SSP middleware with TLS 1.2/1.3 readiness.

Key Specifications

Pinout & Package

Package: 145-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS3A6783A01CNE#BA0, the R7FS3A6773A01CNE#BA0 trades OTA robustness and USB flexibility for lower cost, while the R7FS5D5783A01CNE#BA0 extends security and networking capability at higher complexity and price - making R7FS3A6783A01CNE#BA0 the optimal balance for industrial edge nodes requiring CAN FD, USB versatility, and proven secure boot.

Availability

R7FS3A6783A01CNE#BA0 is available at Aetrix Electronics and suitable for industrial HMI, secure edge gateways, motor drive control units, and medical diagnostic peripherals requiring stable component supply and long-term manufacturability.

Supply support for R7FS3A6783A01CNE#BA0 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The Synergy S3 Series - including the R7FS3A6783A01CNE#BA0 - was designed specifically for scalable, secure, and certified embedded applications in industrial automation and IoT edge devices, with built-in functional safety and security features aligned to IEC 61508 and Common Criteria EAL4+.

FAQ

What is the maximum operating frequency and core type of the R7FS3A6783A01CNE#BA0?

The R7FS3A6783A01CNE#BA0 features an ARM Cortex-M4F core with integrated floating-point unit (FPU) and operates at a maximum frequency of 120 MHz. This enables high-performance real-time signal processing and deterministic control loops. The FPU accelerates mathematical computations required in motor control and sensor fusion algorithms, and the R7FS3A6783A01CNE#BA0 maintains full cycle-accurate timing across all operating conditions specified in its electrical characteristics table.

Does the R7FS3A6783A01CNE#BA0 support secure boot and cryptographic acceleration?

Yes, the R7FS3A6783A01CNE#BA0 includes a dedicated hardware crypto engine supporting AES-128/256 (ECB/CBC/CTR/GCM), SHA-256, and True Random Number Generation (TRNG). These accelerate secure boot verification, encrypted firmware updates, and TLS 1.2/1.3 handshakes. The R7FS3A6783A01CNE#BA0 implements ROM-based secure boot with configurable root-of-trust keys stored in one-time-programmable (OTP) memory, ensuring immutable chain-of-trust enforcement before application code execution.

What USB capabilities does the R7FS3A6783A01CNE#BA0 provide?

The R7FS3A6783A01CNE#BA0 integrates a USB 2.0 Full-Speed (12 Mbps) controller supporting host, device, and OTG roles via runtime software configuration. It includes an on-chip transceiver, eliminating the need for external PHY components. The R7FS3A6783A01CNE#BA0 supports standard USB classes (CDC, HID, MSC) out-of-the-box through Renesas Synergy Software Package (SSP), enabling rapid development of field-service interfaces and plug-and-play peripheral connectivity.

How many CAN FD interfaces does the R7FS3A6783A01CNE#BA0 include, and what data rates are supported?

The R7FS3A6783A01CNE#BA0 includes two independent CAN FD controllers compliant with ISO 11898-1:2015. Each supports classical CAN (up to 1 Mbps) and CAN FD with arbitration phase up to 1 Mbps and data phase up to 5 Mbps. Both controllers feature dedicated message RAM with hardware filtering, TX/RX FIFOs, and bit-rate switching - allowing the R7FS3A6783A01CNE#BA0 to serve as a dual-network gateway in industrial automation systems without external CAN transceivers beyond physical layer drivers.

What is the memory configuration of the R7FS3A6783A01CNE#BA0, and how does dual-bank flash benefit firmware updates?

The R7FS3A6783A01CNE#BA0 contains 2 MB of on-chip flash organized in two independent 1 MB banks, plus 512 KB of SRAM (384 KB general + 128 KB TCM). Dual-bank flash enables atomic firmware updates: the new image is programmed into the inactive bank while the system runs from the active bank; a single SWAP command instantly switches execution to the updated bank with no reset or service interruption - a critical capability for the R7FS3A6783A01CNE#BA0 in always-on industrial equipment.