Renesas R7FS3A6783A01CNE#AA0

Overview

R7FS3A6783A01CNE#AA0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3A6 Group, featuring 2 MB Flash, 512 KB SRAM, and integrated security peripherals including AES-256, SHA-256, TRNG, and secure boot. It operates at up to 120 MHz, supports USB 2.0 FS, CAN FD, and multiple communication interfaces (SPI/I²C/UART), and targets industrial HMI and secure edge node applications.

For engineers reviewing the R7FS3A6783A01CNE#AA0 datasheet, R7FS3A6783A01CNE#AA0 pinout, R7FS3A6783A01CNE#AA0 application, or R7FS3A6783A01CNE#AA0 equivalent, key selection considerations include its dual-bank Flash for safe firmware updates, hardware-accelerated crypto engine, CAN FD support with bit-rate switching, and QFP144 package with 112 GPIOs - all verified in Renesas' official S3A6 User's Manual Rev.1.30 (Jul 2024).

Technical Context

The R7FS3A6783A01CNE#AA0 implements an ARM Cortex-M4F core with FPU and MPU, coupled with Renesas' proprietary Synergy Software Package (SSP) abstraction layer. It integrates a 12-bit ADC (16-channel, 1 MSps), 12-bit DAC (2-channel), and programmable gain amplifier (PGA) for analog signal conditioning.

Its system architecture includes dual-bank Flash enabling read-while-write and atomic firmware updates, a dedicated security subsystem with tamper detection and secure key storage, and clock management supporting multiple PLL configurations (main PLL, USB PLL, audio PLL) with fail-safe clock monitoring and automatic fallback.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS3A6783A01CNE#AA0, the R7FS3A6793A01CNE#AA0 offers scalable memory without design changes, while the R7FA6M2AF3CFP#AA0 represents a different architecture trade-off - sacrificing CAN FD and crypto acceleration for lower unit cost and RX-specific IP reuse.

Availability

R7FS3A6783A01CNE#AA0 is available at Aetrix Electronics and suitable for industrial HMI, secure edge gateways, medical sensor nodes, and building automation controllers requiring stable component supply across multi-year production cycles.

Supply support for R7FS3A6783A01CNE#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 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#AA0 - was designed to deliver certified, scalable, and secure ARM-based MCUs with integrated middleware, targeting industrial IoT edge nodes and human-machine interface systems.

FAQ

What is the maximum operating frequency of the R7FS3A6783A01CNE#AA0?

The R7FS3A6783A01CNE#AA0 operates at a maximum CPU frequency of 120 MHz, achieved via its main PLL configured from the external crystal or internal oscillator. This frequency is sustained across the full industrial temperature range (−40°C to +85°C) and supported by its 2 MB Flash memory with zero-wait-state access at full speed. The R7FS3A6783A01CNE#AA0 also includes a USB PLL and audio PLL for independent clock domain management.

Does the R7FS3A6783A01CNE#AA0 support CAN FD, and what bit rates are achievable?

Yes, the R7FS3A6783A01CNE#AA0 integrates a CAN FD controller supporting both Classical CAN and CAN FD frames, with programmable bit-rate switching. It achieves up to 5 Mbps in the data phase when used with an external CAN transceiver, and maintains compatibility with ISO 11898-1:2015. The R7FS3A6783A01CNE#AA0 includes dedicated CAN FD message RAM and filtering logic to handle high-throughput automotive and industrial network traffic.

What security features are implemented in hardware on the R7FS3A6783A01CNE#AA0?

The R7FS3A6783A01CNE#AA0 includes a dedicated security subsystem with AES-256 and SHA-256 hardware accelerators, a True Random Number Generator (TRNG), secure boot ROM with ECDSA signature verification, and one-time-programmable (OTP) key storage. These features are accessible only through privileged software and enforce secure firmware validation before execution - a requirement for IEC 62443 and UL 60730 compliance in industrial control applications.

Is the R7FS3A6783A01CNE#AA0 pin-compatible with other S3A6 group microcontrollers?

Yes, the R7FS3A6783A01CNE#AA0 shares the same 144-pin LQFP package and pin assignment with other S3A6 variants such as R7FS3A6793A01CNE#AA0 and R7FS3A6773A01CNE#AA0. Pin functions, power domains, and peripheral mappings are consistent across this package variant, enabling memory-size-based scalability without PCB redesign. However, unused pins and peripheral enablement must be verified per device datasheet.

What development tools and software support are available for the R7FS3A6783A01CNE#AA0?

The R7FS3A6783A01CNE#AA0 is fully supported by Renesas' e2 studio IDE, the Synergy Software Package (SSP) v3.x, and the Synergy Configuration Tool. It is compatible with the SK-S3A6 starter kit and DK-S3A6 development kit, which provide debug interfaces, onboard sensors, and expansion headers. SSP includes certified middleware for USB, CAN FD, TLS, and FreeRTOS - all pre-integrated and validated for the R7FS3A6783A01CNE#AA0.