ATSAM3S1CB-AU

Overview

The ATSAM3S1CB-AU is a 32-bit microcontroller from the Microchip SAM3S family, built on the ARM Cortex-M3 core. It operates at a maximum clock frequency of 64 MHz and features 64 kB of embedded Flash memory and 16 kB of SRAM. The device includes a 12-bit ADC with 15 channels and provides 79 general-purpose I/O pins. It supports multiple communication interfaces including SPI, UART, and I2C. The unit functions within a supply voltage range of 1.62 V to 1.9 V and is rated for an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core optimized for efficient code execution and low power consumption.
• Provides flexible connectivity through multiple serial peripheral interfaces, universal asynchronous receivers/transmitters, and two-wire interfaces.
• Includes a high-resolution analog-to-digital converter for precise signal acquisition from external sensors.

Applications

• Industrial control systems requiring robust processing capabilities
• Consumer electronics utilizing USB or serial communication protocols
• Medical devices needing accurate analog signal monitoring

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Confirm current lifecycle status as availability may vary by region. Ensure compatibility with existing board designs regarding pinout and voltage levels before procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and extensive I/O count is required. It is suitable for applications where the 64 MHz performance ceiling meets processing demands without necessitating higher-speed cores. Consider the QFP-100 package constraints during PCB layout planning.

Part Context

This part belongs to the SAM3S series, which targets cost-sensitive applications requiring ARM Cortex-M3 performance. It shares architectural similarities with other SAM3S variants but differs in memory size and package options. The series is designed for broad embedded control needs across various industries.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the SAM3S family. Verify that any replacement maintains identical memory specifications and interface availability to ensure seamless integration.