Renesas R7FS3A17C2A01CLJ#BC0

Overview

R7FS3A17C2A01CLJ#BC0 from Renesas Electronics is a 32-bit ARM Cortex-M4F-based microcontroller in the Synergy S3A1 Group, featuring 1 MB Flash, 256 KB SRAM, integrated FPU, and hardware AES/SHA/TRNG security accelerators. It operates at up to 48 MHz, supports USB 2.0 FS device/host/OTG, and targets secure industrial HMI and sensor-edge applications with real-time control.

For engineers reviewing the R7FS3A17C2A01CLJ#BC0 datasheet, R7FS3A17C2A01CLJ#BC0 pinout, R7FS3A17C2A01CLJ#BC0 application, or R7FS3A17C2A01CLJ#BC0 equivalent, key selection criteria include its 100-pin LQFP package, 48 MHz max CPU frequency, integrated USB PHY, hardware crypto engine, and support for Renesas Synergy Software Package (SSP) with certified middleware.

Technical Context

The R7FS3A17C2A01CLJ#BC0 implements a Cortex-M4F core with single-precision FPU and MPU, executing from on-chip Flash with configurable wait states. Its system architecture includes dual-bank Flash for safe firmware updates, 256 KB SRAM with parity protection, and a multi-layer AHB/APB bus matrix enabling concurrent peripheral access.

Peripheral integration includes 12-bit ADC (16 channels, 1 MSPS), 16-bit PWM (6 channels), 4x UART/SPI/I²C with clock stretching, USB 2.0 FS with integrated transceiver, and a dedicated security subsystem supporting AES-128/256, SHA-1/256, and TRNG - all accessible via SSP's HAL and TrustZone-aware drivers.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7FS3A17C2A01CLJ#BC0, the R7FS3A17C3A01CLJ#BC0 delivers higher compute throughput at the expense of increased power and clock complexity, while the R7FA4M1AB3CFM#AA0 reduces cost and size but removes essential security and USB features needed for certified industrial edge devices.

Availability

R7FS3A17C2A01CLJ#BC0 is available at Aetrix Electronics and suitable for industrial HMI, secure sensor gateways, PLC I/O modules, and medical diagnostic handhelds requiring stable component supply across long product lifecycles.

Supply support for R7FS3A17C2A01CLJ#BC0 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 S3A1 Group - including R7FS3A17C2A01CLJ#BC0 - was designed specifically for secure, USB-connected industrial edge applications requiring certified software, hardware-accelerated cryptography, and robust real-time performance under extended temperature conditions.

FAQ

What is the maximum operating frequency of the R7FS3A17C2A01CLJ#BC0?

The R7FS3A17C2A01CLJ#BC0 operates at a maximum CPU frequency of 48 MHz. This is achieved using the on-chip PLL with an external crystal (1–20 MHz) or internal oscillator, and requires VDD ≥ 2.7 V. The 48 MHz limit ensures stable operation of the integrated USB 2.0 FS transceiver and meets timing constraints for all peripherals including the 12-bit ADC and 16-bit PWM modules in the R7FS3A17C2A01CLJ#BC0.

Does the R7FS3A17C2A01CLJ#BC0 include an integrated USB physical layer?

Yes, the R7FS3A17C2A01CLJ#BC0 integrates a full-speed USB 2.0 physical layer (PHY) supporting device, host, and OTG modes. This eliminates the need for an external USB transceiver IC, reduces PCB footprint, and simplifies ESD protection design. The USB_DP and USB_DM pins are routed directly to the connector, and the PHY complies with USB-IF certification requirements when used with Renesas' reference layout and SSP USB stack in the R7FS3A17C2A01CLJ#BC0.

What security features are implemented in hardware on the R7FS3A17C2A01CLJ#BC0?

The R7FS3A17C2A01CLJ#BC0 includes dedicated hardware accelerators for AES-128/256 (ECB/CBC/CTR/GCM), SHA-1/256, and a True Random Number Generator (TRNG). These operate independently of the CPU, reducing latency and attack surface. The security subsystem supports secure boot with signature verification, key wrapping, and protected key storage - all accessible through Renesas Synergy Software Package APIs without exposing sensitive material in firmware for the R7FS3A17C2A01CLJ#BC0.

Is dual-bank Flash memory available on the R7FS3A17C2A01CLJ#BC0?

Yes, the R7FS3A17C2A01CLJ#BC0 features 1 MB of on-chip Flash organized in dual banks (Bank A and Bank B), each 512 KB. This enables safe over-the-air (OTA) firmware updates: while one bank executes active code, the other receives and validates new firmware. The swap operation is atomic and interruptible, ensuring system reliability during power loss - a critical capability confirmed in the R7FS3A17C2A01CLJ#BC0 User's Manual Rev.1.30.

What is the operating temperature range for the R7FS3A17C2A01CLJ#BC0?

The R7FS3A17C2A01CLJ#BC0 is rated for industrial temperature operation from −40°C to +85°C. This range is validated across all peripherals, including the USB PHY, ADC, and crypto accelerators, and aligns with Renesas' "Standard" quality grade for industrial equipment. Thermal derating is not required within this range, and the device maintains full specification compliance for timing, voltage, and current parameters throughout the R7FS3A17C2A01CLJ#BC0 operating envelope.