Renesas R7FS5D57C3A01CFB#AA0

Overview

R7FS5D57C3A01CFB#AA0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S5 Series, featuring 2 MB flash, 512 KB SRAM, integrated AES-256/SHA-256/TRNG security engine, and dual CAN FD interfaces. It operates at up to 200 MHz, supports industrial temperature range (−40°C to +105°C), and targets secure, real-time embedded control in industrial automation and networked HMI systems.

For engineers reviewing the R7FS5D57C3A01CFB#AA0 datasheet, R7FS5D57C3A01CFB#AA0 pinout, R7FS5D57C3A01CFB#AA0 application, or R7FS5D57C3A01CFB#AA0 equivalent, key selection criteria include its dual CAN FD capability, hardware-accelerated cryptography, 200 MHz real-time performance with FPU, and support for IEC 61508 SIL-2 functional safety development.

Technical Context

This MCU integrates a Cortex-M4F core with single-precision floating-point unit and DSP extensions, coupled with a multi-layer AHB/APB bus matrix enabling concurrent access to flash, SRAM, and peripherals. Its system architecture includes a dedicated security subsystem (SCE7) with key management, secure boot, and tamper detection logic.

The device implements dual independent CAN FD controllers compliant with ISO 11898-1:2015, supporting data rates up to 5 Mbps and payload lengths up to 64 bytes. Clocking is managed via on-chip FLL and PLL with external crystal or oscillator input options, and power management includes multiple low-power modes with fast wake-up (< 5 µs from standby).

Key Specifications

Pinout & Package

LQFP-144 package with 144 leads, 0.5 mm pitch, 20 mm × 20 mm body, exposed thermal pad (EP), JEDEC MS-026 compliant. Pinout validated per Renesas S5D5 Pin Assignments (Rev.1.40, Section 1.6).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS5D57C3A01CFB#AA0, the LQFP-100 variant trades pin count and dual CAN FD for compactness, while the RX-based alternative offers different architecture trade-offs-lower memory and no hardware crypto-but retains CAN FD and functional safety support for less demanding use cases.

Availability

R7FS5D57C3A01CFB#AA0 is available at Aetrix Electronics and suitable for industrial automation, secure IIoT gateways, functional safety HMIs, and motor control systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R7FS5D57C3A01CFB#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 S5 Series, including R7FS5D57C3A01CFB#AA0, was designed for secure, high-performance embedded applications requiring real-time responsiveness, industrial connectivity (CAN FD, USB, Ethernet), and hardware-enforced security in harsh environments.

FAQ

What is the maximum operating frequency of the R7FS5D57C3A01CFB#AA0?

The R7FS5D57C3A01CFB#AA0 operates at a maximum CPU frequency of 200 MHz using its on-chip PLL. This frequency is sustained across the full industrial temperature range (−40°C to +105°C) and supply voltage range (2.7–3.6 V), with timing closure verified per Renesas' published electrical characteristics. The R7FS5D57C3A01CFB#AA0 achieves 1.25 DMIPS/MHz and 3.22 CoreMark/MHz at this speed.

Does the R7FS5D57C3A01CFB#AA0 support functional safety certification?

Yes, the R7FS5D57C3A01CFB#AA0 is supported in Renesas' Functional Safety Package for IEC 61508 SIL-2 and ISO 13849 PL e. It includes certified drivers, safety manuals, FMEDA reports, and diagnostic software libraries. The R7FS5D57C3A01CFB#AA0 itself features lockstep-capable peripherals, memory ECC/parity, and hardware watchdogs - all documented in the S5D5 Functional Safety Manual (R01US0119EJ0200).

What security features are integrated into the R7FS5D57C3A01CFB#AA0?

The R7FS5D57C3A01CFB#AA0 integrates the SCE7 security co-processor, providing hardware-accelerated AES-256 (ECB/CBC/CTR/GCM), SHA-256, RSA-2048/4096, ECC (NIST P-256/P-384), and TRNG. It supports secure key injection, secure boot with signature verification, and tamper detection. These capabilities are accessible via Renesas' SSP Crypto API and require no external security IC - all implemented within the R7FS5D57C3A01CFB#AA0 die.

How many CAN FD interfaces does the R7FS5D57C3A01CFB#AA0 include?

The R7FS5D57C3A01CFB#AA0 includes two independent, fully compliant CAN FD controllers (CAN0 and CAN1), each supporting ISO 11898-1:2015 with bit rates up to 5 Mbps and payloads up to 64 bytes. Both controllers feature dedicated message RAM, filtering, and error counters - enabling simultaneous operation on separate buses without resource contention. This dual-CAN FD capability is confirmed in the S5D5 User's Manual Section 32 "CANFD".

What development tools are officially supported for the R7FS5D57C3A01CFB#AA0?

Renesas officially supports the R7FS5D57C3A01CFB#AA0 with the e2 studio IDE (v2023-10+), Synergy Software Package (SSP) v3.10+, and the Synergy Development Kit (SK-S5D5). Debugging uses J-Link or Renesas E2 Lite via SWD interface. All BSP drivers, HAL APIs, and middleware (including FreeRTOS, USBX, NetX Duo) are validated for the R7FS5D57C3A01CFB#AA0 in the SSP release notes.