Renesas R7FS5D97C2A01CBG#AC0

Overview

R7FS5D97C2A01CBG#AC0 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 240 MHz, supports USB 2.0 FS/HS, CAN FD, and Ethernet MAC, and targets industrial HMI and secure IoT edge nodes.

For engineers reviewing the R7FS5D97C2A01CBG#AC0 datasheet, R7FS5D97C2A01CBG#AC0 pinout, R7FS5D97C2A01CBG#AC0 application, or R7FS5D97C2A01CBG#AC0 equivalent, key selection considerations include its dual-bank flash for safe firmware updates, hardware-accelerated crypto engine, and support for Renesas Synergy Software Package (SSP) with certified middleware stacks.

Technical Context

This MCU implements a Cortex-M4F core with FPU and MPU, 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 with tamper detection, secure debug lock, and memory protection units enforcing privilege separation between trusted and untrusted code.

The device integrates high-precision timing resources: a 32.768 kHz RTC with calendar function, programmable PLLs for CPU/peripheral clock generation, and independent clock domains for USB, Ethernet, and CAN FD-each with dedicated clock gating and fail-safe monitoring.

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 R7FS5D97E2A01CBG#AC0, the R7FS5D97C2A01CBG#AC0 trades flash/SRAM capacity for lower BOM cost without sacrificing peripheral capability; versus R7FA6M5BH3CFP#AA0, it prioritizes rich connectivity and crypto performance over hardware-enforced security partitioning and safety certification.

Availability

R7FS5D97C2A01CBG#AC0 is available at Aetrix Electronics and suitable for industrial HMI, secure gateways, motor drives, medical sensor hubs, and Ethernet-connected embedded systems requiring stable component supply across multi-year production cycles.

Supply support for R7FS5D97C2A01CBG#AC0 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 R7FS5D97C2A01CBG#AC0 - was designed to deliver scalable, secure, and software-supported MCUs for industrial IoT edge nodes requiring rich connectivity, real-time performance, and hardware-rooted trust.

FAQ

What is the maximum operating frequency of the R7FS5D97C2A01CBG#AC0?

The R7FS5D97C2A01CBG#AC0 operates at a maximum CPU frequency of 240 MHz using its internal PLL with external crystal reference. This frequency is fully supported across its specified industrial temperature range (−40°C to +85°C) and requires proper decoupling and thermal design per Renesas' hardware design guidelines. The R7FS5D97C2A01CBG#AC0 achieves this speed while maintaining full peripheral functionality, including simultaneous USB HS, Ethernet, and CAN FD operation.

Does the R7FS5D97C2A01CBG#AC0 support secure boot from factory default?

Yes, the R7FS5D97C2A01CBG#AC0 includes a factory-programmed, immutable ROM-based secure boot loader that verifies the digital signature of the first-stage bootloader before execution. This process uses ECDSA-P256 with keys stored in one-time-programmable (OTP) memory. The R7FS5D97C2A01CBG#AC0 enforces this check unconditionally unless explicitly disabled via JTAG fuse - a permanent action that voids security certification. Secure boot is integral to the device's root-of-trust architecture.

Can the R7FS5D97C2A01CBG#AC0 run the Renesas Synergy Software Package (SSP) without modification?

Yes, the R7FS5D97C2A01CBG#AC0 is fully supported by the Renesas Synergy Software Package (SSP) v3.x and later, including certified middleware for USB Host/Device, TCP/IP (NetX Duo), CAN FD, and cryptographic services. The R7FS5D97C2A01CBG#AC0 is pre-configured in SSP's device database with correct clock trees, pin mappings, and peripheral drivers - enabling immediate project creation in e2 studio without manual register-level configuration.

What package type and pin count does the R7FS5D97C2A01CBG#AC0 use?

The R7FS5D97C2A01CBG#AC0 uses a 176-pin LQFP package measuring 24 mm × 24 mm with 0.5 mm pitch. It is RoHS-compliant and rated MSL-3 per JEDEC J-STD-020. This package provides full access to all peripherals - including dual USB ports, Ethernet RMII signals, CAN FD transceivers, and 12-bit ADC channels - and supports standard reflow soldering profiles. The R7FS5D97C2A01CBG#AC0 shares this footprint with other S5D9 variants for design reuse.

Is Ethernet MAC support on the R7FS5D97C2A01CBG#AC0 limited to RMII mode only?

No, the R7FS5D97C2A01CBG#AC0 supports both RMII and MII Ethernet MAC interfaces via configurable pin multiplexing. RMII mode uses 9 pins (including TX_EN, TXD[1:0], RXD[1:0], CRS_DV, REF_CLK) for 10/100 Mbps operation, while MII mode expands to 16 pins (TXD[3:0], RXD[3:0], TX_EN, RX_ER, CRS, COL, TX_CLK, RX_CLK) for identical speed support. The R7FS5D97C2A01CBG#AC0 does not integrate a PHY; an external PHY is required in either mode.