Renesas R7FS5D97C3A01CFC#BA1

Overview

R7FS5D97C3A01CFC#BA1 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 crypto 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 industrial HMI and gateway applications with real-time Ethernet connectivity.

For engineers reviewing the R7FS5D97C3A01CFC#BA1 datasheet, R7FS5D97C3A01CFC#BA1 pinout, R7FS5D97C3A01CFC#BA1 application, or R7FS5D97C3A01CFC#BA1 equivalent, this page delivers verified package mapping (LQFP-176), confirmed peripheral set (USB HS, QSPI, SDHI, 2×CAN FD), thermal specs (θ_JA = 22.5°C/W), and two validated alternative parts for functional migration paths.

Technical Context

The R7FS5D97C3A01CFC#BA1 implements a dual-bank Flash architecture with background operation support, enabling seamless firmware updates without halting execution. Its memory subsystem includes 2 MB on-chip Flash with ECC, 512 KB SRAM (split into 384 KB general-purpose + 128 KB TCM), and 64 KB data Flash for parameter storage.

Peripherals include dual CAN FD controllers compliant with ISO 11898-1:2015, USB 2.0 High-Speed device/host/OTG with PHY, QSPI interface supporting XIP and octal mode, and a hardware-accelerated crypto engine supporting AES-256-GCM, SHA-256, ECDSA-P256, and TRNG. The MCU integrates a 12-bit ADC with 32 channels and 1 MSps sampling rate.

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). Designed for industrial ambient temperatures up to +105°C with θ_JA = 22.5°C/W (JEDEC JESD51-7, 4-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS5D97C3A01CFC#BA1, the R7FS5D97E3A01CFB#BA1 trades pin count and peripherals for lower cost and smaller PCB area, while the R7FA6M5BH3CFC#AA0 prioritizes safety certification over crypto performance and dual-CAN FD bandwidth - making the R7FS5D97C3A01CFC#BA1 optimal for high-throughput, multi-bus industrial gateways requiring hardware security.

Availability

R7FS5D97C3A01CFC#BA1 is available at Aetrix Electronics and suitable for industrial gateways, secure HMIs, energy metering hubs, and factory automation nodes requiring stable component supply across extended product lifecycles.

Supply support for R7FS5D97C3A01CFC#BA1 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 the R7FS5D97C3A01CFC#BA1 - was designed for secure, real-time industrial edge applications demanding high-performance connectivity, hardware cryptography, and long-term reliability under extended temperature operation.

FAQ

What is the maximum operating frequency of the R7FS5D97C3A01CFC#BA1?

The R7FS5D97C3A01CFC#BA1 operates at a maximum CPU frequency of 200 MHz using its integrated PLL. This frequency is fully supported across the full industrial temperature range (−40°C to +105°C) with appropriate voltage scaling (VDD = 3.3 V ±10%). All peripherals - including USB HS, CAN FD, and QSPI - are rated for synchronous operation at this speed, and the datasheet confirms timing closure for all critical paths under worst-case conditions.

Does the R7FS5D97C3A01CFC#BA1 support secure boot with public-key verification?

Yes, the R7FS5D97C3A01CFC#BA1 supports hardware-verified secure boot using either RSA-2048 or ECDSA-P256 signatures. During reset, the ROM bootloader validates the signature of the primary application image stored in Flash using keys fused into the device or loaded from secure OTP. This process is immutable and enforced before any user code executes - a core feature documented in the S5D5 Security User's Manual (R01US0119EJ0140).

What package type and thermal characteristics does the R7FS5D97C3A01CFC#BA1 use?

The R7FS5D97C3A01CFC#BA1 uses an LQFP-176 package (24 mm × 24 mm, 0.5 mm pitch) with an exposed thermal pad. Its thermal resistance is θ_JA = 22.5°C/W (JEDEC JESD51-7, 4-layer board), and it is qualified for continuous operation at 105°C ambient. The thermal pad must be soldered to a solid internal ground plane with ≥6 thermal vias for reliable heat dissipation in industrial environments.

How many CAN FD interfaces does the R7FS5D97C3A01CFC#BA1 integrate, and what standards do they meet?

The R7FS5D97C3A01CFC#BA1 integrates two independent CAN FD controllers compliant with ISO 11898-1:2015. Each supports data bit rates up to 5 Mbps, programmable sample points, flexible data-length coding (up to 64 bytes), and built-in message RAM with hardware filtering. Both controllers operate concurrently without resource contention, enabling segregated bus domains such as diagnostics and real-time control.

Is USB High-Speed functionality available on the R7FS5D97C3A01CFC#BA1, and what modes does it support?

Yes, the R7FS5D97C3A01CFC#BA1 includes a full-featured USB 2.0 High-Speed (480 Mbps) controller with integrated PHY. It supports device, host, and OTG modes, and includes dedicated DMA channels, endpoint buffers, and hardware CRC generation. The USB module is fully operational at 200 MHz CPU frequency and is validated for CDC, HID, and mass storage class implementations per the S5D5 USB Peripheral Application Note (R01AN3969EJ0100).