Renesas R7FS5D97C3A01CFP#AA0

Overview

R7FS5D97C3A01CFP#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 IP (AES-256, SHA-256, TRNG, ECC). It operates at up to 240 MHz, supports dual-bank flash for safe firmware updates, and targets secure industrial HMI and networked edge nodes requiring real-time control and TLS offload.

For engineers reviewing the R7FS5D97C3A01CFP#AA0 datasheet, R7FS5D97C3A01CFP#AA0 pinout, R7FS5D97C3A01CFP#AA0 application, or R7FS5D97C3A01CFP#AA0 equivalent, key selection criteria include its 176-pin LQFP package, 240 MHz CPU clock with FPU/MPU, hardware crypto acceleration, and support for CAN FD, USB FS, and multiple Ethernet-capable interfaces including RMII and IEEE 1588 timestamping.

Technical Context

The R7FS5D97C3A01CFP#AA0 implements a dual-core debug architecture with SWD/JTAG, supports TrustZone-enabled secure boot via ROM bootloader, and integrates a configurable interrupt controller (ICU) with 256 vector entries. Its memory subsystem includes 2 MB on-chip flash with ECC protection, 512 KB SRAM split into 3 banks (2×256 KB + 1×128 KB), and 64 KB data flash with wear-leveling support.

Peripheral integration includes two 12-bit ADCs (16-channel total, 1.0 MSps), four 16-bit timers with complementary PWM outputs, dual CAN FD controllers, one USB 2.0 FS device/host/OTG controller, and an Ethernet MAC with RMII PHY interface and IEEE 1588 v2 hardware timestamping - all accessible via AXI/AHB/APB bus matrix with QoS arbitration.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 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 R7FS5D97E3A01CFP#AA0, the R7FS5D97C3A01CFP#AA0 trades flash/SRAM capacity for lower unit cost without sacrificing real-time performance or security features; versus R7FA6M5BH3CFC#AA0, it delivers superior deterministic Ethernet and dual-CAN FD support essential for synchronized industrial automation.

Availability

R7FS5D97C3A01CFP#AA0 is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge PLC nodes, networked building controllers, and medical device data hubs requiring stable component supply and long-term manufacturability.

Supply support for R7FS5D97C3A01CFP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for industrial, automotive, and enterprise markets.

The Synergy S5 Series - including R7FS5D97C3A01CFP#AA0 - was designed for secure, real-time industrial edge applications requiring integrated connectivity, hardware-accelerated cryptography, and deterministic timing across CAN FD, Ethernet, and USB interfaces.

FAQ

What is the maximum operating frequency of the R7FS5D97C3A01CFP#AA0?

The R7FS5D97C3A01CFP#AA0 operates at a maximum CPU frequency of 240 MHz using its on-chip PLL with external crystal or internal FLL. This frequency is sustained across the full industrial temperature range (−40°C to +85°C) with appropriate voltage scaling and thermal design, enabling real-time deterministic execution of complex control algorithms and protocol stacks within the R7FS5D97C3A01CFP#AA0.

Does the R7FS5D97C3A01CFP#AA0 support secure boot from factory default?

Yes, the R7FS5D97C3A01CFP#AA0 includes a ROM-resident secure bootloader that validates digital signatures (ECDSA-P256) on firmware images stored in flash before execution. This immutable first-stage loader enforces chain-of-trust booting and is enabled by default - no external provisioning is required to activate secure boot on the R7FS5D97C3A01CFP#AA0.

What Ethernet capabilities does the R7FS5D97C3A01CFP#AA0 provide?

The R7FS5D97C3A01CFP#AA0 integrates a full IEEE 802.3-compliant Ethernet MAC with RMII interface and hardware support for IEEE 1588-2008 v2 timestamping. It delivers precise packet timing with ±50 ns resolution, enabling time-synchronized industrial networking applications such as motion control and distributed I/O - all implemented directly within the R7FS5D97C3A01CFP#AA0 without external PHY or timing ICs.

How many CAN FD interfaces does the R7FS5D97C3A01CFP#AA0 include?

The R7FS5D97C3A01CFP#AA0 includes two independent CAN FD controllers, each supporting bit rates up to 5 Mbps in FD mode and full CAN 2.0B compatibility. Both controllers feature dedicated message RAM with hardware acceptance filtering and loopback self-test modes - making the R7FS5D97C3A01CFP#AA0 suitable for automotive gateway and industrial fieldbus bridging applications requiring redundant or segregated CAN networks.

Is the R7FS5D97C3A01CFP#AA0 pin-compatible with other S5 Series MCUs?

The R7FS5D97C3A01CFP#AA0 uses a 176-pin LQFP package shared across multiple S5D9 variants, but pin compatibility is limited to identical package types and memory configurations. For example, R7FS5D97E3A01CFP#AA0 (4 MB flash) is pin-to-pin compatible, whereas variants with different peripheral sets (e.g., USB HS vs. FS only) may repurpose certain pins - always verify pin function mapping in the R7FS5D97C3A01CFP#AA0 User's Manual Section 1.6 before substitution.