Renesas R7FS5D97E3A01CFB#BA0

Overview

R7FS5D97E3A01CFB#BA0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S5 Series, featuring 3 MB Flash, 512 KB SRAM, and integrated security accelerators (AES-256, SHA-256, TRNG). It supports USB 2.0 FS, CAN FD, Ethernet MAC, and up to 144 GPIOs in a 176-pin LQFP package. Designed for industrial HMI and secure gateway applications requiring real-time control and encrypted communication.

For engineers reviewing the R7FS5D97E3A01CFB#BA0 datasheet, R7FS5D97E3A01CFB#BA0 pinout, R7FS5D97E3A01CFB#BA0 application, or R7FS5D97E3A01CFB#BA0 equivalent, key selection criteria include its dual-bank Flash for safe firmware updates, hardware crypto engine enabling TLS offload, and CAN FD + Ethernet coexistence for deterministic fieldbus-to-cloud bridging.

Technical Context

The R7FS5D97E3A01CFB#BA0 implements an ARM Cortex-M4F core with FPU and MPU, operating at up to 200 MHz. It integrates a multi-layer AHB/APB bus matrix, dual-bank Flash with SWAP functionality, and a dedicated security subsystem including AES-256/SHA-256 accelerators and true random number generation.

Peripherals include one 10/100 Ethernet MAC with RMII interface, two CAN FD controllers, six UARTs (with LIN support), four I²C buses, twelve SPI interfaces, and a 12-bit 1-MSPS ADC with analog comparators. Clock management includes PLL, FLL, and multiple independent clock domains for low-power operation.

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 R7FS5D97E3A01CFB#BA0, the R7FS5D97E3A01CFP#AA0 offers identical functionality but reduced thermal dissipation capability, while the R7FA6M5BH3CFB#AA0 trades integrated Ethernet for enhanced safety isolation and lower power - making it preferable for certified safety-critical nodes without LAN requirements.

Availability

R7FS5D97E3A01CFB#BA0 is available at Aetrix Electronics and suitable for industrial HMI gateways, secure edge controllers, smart energy meter hubs, and factory automation bridges requiring stable component supply across multi-year production cycles.

Supply support for R7FS5D97E3A01CFB#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 automotive, industrial, and enterprise markets.

The Synergy S5 Series - including the R7FS5D97E3A01CFB#BA0 - was designed for high-performance, secure industrial edge applications requiring real-time processing, robust connectivity, and hardware-enforced security.

FAQ

What is the maximum operating frequency of the R7FS5D97E3A01CFB#BA0?

The R7FS5D97E3A01CFB#BA0 operates at a maximum CPU frequency of 200 MHz using its on-chip PLL. This frequency is fully supported across the specified industrial temperature range (−40°C to +85°C) and supply voltage (2.7–3.6 V), with all peripherals clocked synchronously without throttling. The R7FS5D97E3A01CFB#BA0 maintains timing compliance per its electrical characteristics table under worst-case voltage and temperature conditions.

Does the R7FS5D97E3A01CFB#BA0 support secure boot with signature verification?

Yes, the R7FS5D97E3A01CFB#BA0 includes a Secure Boot ROM that validates firmware images using ECDSA-P256 signatures before execution. It verifies the public key hash stored in One-Time Programmable (OTP) memory and checks the image signature against the firmware header. This immutable boot process ensures only authenticated code runs on the R7FS5D97E3A01CFB#BA0, forming the foundation of its trusted execution environment.

Can the R7FS5D97E3A01CFB#BA0 run both CAN FD and Ethernet simultaneously without performance degradation?

Yes, the R7FS5D97E3A01CFB#BA0 supports concurrent CAN FD and Ethernet operation using dedicated hardware blocks and a multi-layer bus matrix. Its AHB/APB interconnect isolates traffic between the Ethernet MAC DMA, CAN FD controllers, and CPU, preventing bus contention. Real-world benchmarks show <2% CPU utilization overhead when both interfaces sustain full-rate traffic - confirming deterministic coexistence in the R7FS5D97E3A01CFB#BA0.

What debug interfaces does the R7FS5D97E3A01CFB#BA0 provide?

The R7FS5D97E3A01CFB#BA0 supports Serial Wire Debug (SWD) and JTAG interfaces compliant with ARM CoreSight standards. It includes ETM trace capability via SWO or TPIU, enabling real-time instruction and data trace without halting execution. The R7FS5D97E3A01CFB#BA0 also implements a debug authentication mechanism requiring valid keys for secure debug access, preventing unauthorized firmware inspection.

Is the R7FS5D97E3A01CFB#BA0 qualified for industrial temperature operation?

Yes, the R7FS5D97E3A01CFB#BA0 is rated for industrial temperature operation from −40°C to +85°C and is supplied in the "Standard" quality grade per Renesas' classification. It meets JEDEC JESD47 reliability standards for this range and is validated for continuous operation under thermal cycling and humidity testing. The R7FS5D97E3A01CFB#BA0 datasheet specifies all electrical parameters across this full temperature range.