Renesas R7FS5D97C3A01CFC#AA0

Overview

R7FS5D97C3A01CFC#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, and integrated security peripherals including AES-256, SHA-256, TRNG, and secure boot. It operates at up to 200 MHz, supports USB 2.0 FS/HS, CAN FD, and Ethernet MAC, and targets industrial HMI and secure edge-node applications.

For engineers reviewing the R7FS5D97C3A01CFC#AA0 datasheet, R7FS5D97C3A01CFC#AA0 pinout, R7FS5D97C3A01CFC#AA0 application, or R7FS5D97C3A01CFC#AA0 equivalent, key selection criteria include its dual-bank flash for safe firmware updates, hardware-accelerated crypto engine, and support for IEC 62443-compliant secure boot with certificate-based authentication.

Technical Context

The R7FS5D97C3A01CFC#AA0 implements a Cortex-M4F core with FPU and MPU, coupled with a multi-layer AHB/APB bus matrix enabling concurrent peripheral access. Its system architecture includes a dedicated security subsystem (SCE7) with tamper detection, memory protection unit (MPU), and TrustZone-assisted secure execution environment.

It integrates dual CAN FD controllers with time-triggered communication support, a 10/100 Ethernet MAC with RMII interface, and a high-precision 12-bit ADC with 16-channel scan capability. Clock management includes PLL, FLL, and independent low-power oscillators for flexible power-state transitions.

Key Specifications

Pinout & Package

LQFP-176 package with 176 leads, 0.5 mm pitch, 24 mm × 24 mm body size, and exposed thermal pad (EP) for enhanced heat dissipation in industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS5D97C3A01CFC#AA0, the R7FS5D97E3A01CBG#AA0 trades Ethernet for SDHI in a smaller BGA, while the R7FA6M5BH3CFC#AA0 offers modern TrustZone security at reduced performance and peripheral scope - making R7FS5D97C3A01CFC#AA0 the only option combining CAN FD, Ethernet, and dual-bank flash in LQFP-176.

Availability

R7FS5D97C3A01CFC#AA0 is available at Aetrix Electronics and suitable for industrial HMI terminals, secure edge gateways, and programmable logic controller I/O modules requiring stable component supply across multi-year production cycles.

Supply support for R7FS5D97C3A01CFC#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 automotive, industrial, and enterprise markets.

The Synergy S5 Series - including R7FS5D97C3A01CFC#AA0 - was designed for high-performance, secure industrial edge applications demanding real-time responsiveness, functional safety readiness, and hardware-enforced cybersecurity.

FAQ

What is the maximum operating frequency of the R7FS5D97C3A01CFC#AA0?

The R7FS5D97C3A01CFC#AA0 operates at a maximum CPU frequency of 200 MHz using its on-chip PLL. This frequency is fully supported across the full industrial temperature range (−40°C to +85°C) with appropriate voltage scaling (VDD = 3.0–3.6 V). The R7FS5D97C3A01CFC#AA0 maintains timing compliance under worst-case process/voltage/temperature corners per its official Renesas datasheet specifications.

Does the R7FS5D97C3A01CFC#AA0 support secure boot with public-key verification?

Yes, the R7FS5D97C3A01CFC#AA0 implements secure boot using the SCE7 crypto engine to verify RSA-2048 or ECDSA-P256 signatures on the boot image. Public keys are stored in one-time-programmable (OTP) memory, and signature validation occurs before any user code executes. This capability is enabled and configured via the Renesas Synergy Software Package (SSP) and documented in the R7FS5D97C3A01CFC#AA0 Security User's Manual.

What package type and pin count does the R7FS5D97C3A01CFC#AA0 use?

The R7FS5D97C3A01CFC#AA0 uses a 176-pin LQFP package (24 mm × 24 mm, 0.5 mm pitch) with an exposed thermal pad. This package is RoHS-compliant and optimized for industrial PCB assembly, offering mechanical robustness and thermal performance suitable for convection-cooled enclosures. Pin assignments match the S5D9 group's standardized LQFP-176 footprint defined in the R7FS5D97C3A01CFC#AA0 User's Manual.

Can the R7FS5D97C3A01CFC#AA0 execute firmware updates without interrupting real-time operation?

Yes, the R7FS5D97C3A01CFC#AA0 supports zero-downtime firmware updates via its dual-bank flash architecture. While the active bank runs the current application, the inactive bank receives the new firmware image. A single SWAP command then atomically switches execution to the updated bank within one CPU cycle - ensuring uninterrupted I/O, communication, and control tasks during field upgrades. This behavior is guaranteed by the R7FS5D97C3A01CFC#AA0's flash controller hardware.

Which communication interfaces with hardware time-triggered capability does the R7FS5D97C3A01CFC#AA0 support?

The R7FS5D97C3A01CFC#AA0 supports time-triggered communication on both CAN FD controllers, allowing deterministic message scheduling with configurable time windows and synchronization to an internal or external time base. This feature is implemented in hardware via the CAN FD module's time-triggered mode registers and is independent of CPU load - enabling compliance with protocols like CANopen Safety or SAE J1939-21 time-triggered extensions. The R7FS5D97C3A01CFC#AA0 User's Manual details register-level configuration.