Microchip ATSAM4SD16BB-UUR: A Comprehensive Technical Overview

The Microchip ATSAM4SD16BB-UUR represents a high-performance, feature-rich microcontroller unit (MCU) engineered for demanding industrial, automotive, and consumer applications. As a member of the SAM4S series, this device is built upon the powerful ARM® Cortex®-M4 RISC processor core, which includes a single-precision Floating Point Unit (FPU). This core operates at a maximum frequency of 120 MHz, delivering an impressive computational throughput of 150 DMIPS, making it capable of handling complex algorithms and real-time processing tasks with ease.

A defining characteristic of this specific variant is its integrated dual-bank Flash memory system. The device boasts a substantial 1 MB (512KB + 512KB) of dual-panel Flash memory. This architecture is critical for applications requiring live firmware updates (Live Update) without interruption, as one bank can execute application code while the other is being reprogrammed. This ensures high system availability and reliability. It is complemented by 128 KB of SRAM, providing ample space for data processing and complex operational stacks.

The peripheral set of the ATSAM4SD16BB-UUR is extensive and designed for robust connectivity and control. It features a high-speed USB 2.0 Device and Embedded Host interface with an on-chip transceiver, simplifying the design of connected devices. For system control, it includes an External Bus Interface (EBI) for connecting to external memories and LCDs, and an 8-channel DMA controller to offload data transfer tasks from the CPU, enhancing overall system efficiency.

Communication is facilitated through a wide array of serial interfaces, including USARTs, SPIs, and TWIs (I²C). Furthermore, it incorporates a 10/100 Ethernet MAC with a dedicated DMA controller, enabling network connectivity for IoT and industrial networking applications. For precision sensing and control, the MCU is equipped with a 16-channel, 12-bit ADC and dual 12-bit DACs.

The device operates over an extensive voltage range of 1.62V to 3.6V and across a wide temperature range of -40°C to +105°C, ensuring resilience and stable performance in harsh environments. Housed in a 100-pin VFBGA package, it offers a compact footprint for space-constrained designs.

ICGOODFIND: The Microchip ATSAM4SD16BB-UUR is a top-tier MCU solution that masterfully combines high computational power, advanced memory architecture for safe in-application programming, and a vast array of peripherals. Its industrial-grade robustness and connectivity features make it an exceptional choice for complex embedded systems requiring reliability, performance, and future-proof update capabilities.

Keywords: ARM Cortex-M4, Dual-bank Flash, Live Update, USB 2.0, Ethernet MAC.