ATSAM4S16BA-MU

Overview

The ATSAM4S16BA-MU is a 32-bit microcontroller from the Microchip SAM4S series, featuring an ARM Cortex-M4 core operating at up to 120 MHz. It integrates 1 MB of in-system programmable Flash memory and 128 KB of SRAM. The device utilizes a 64-pin LQFP package and supports a supply voltage range of 1.62 V to 3.6 V. Key peripherals include multiple communication interfaces such as SPI, I2C, USART, and USB Full-Speed.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
• Provides extensive connectivity through integrated USB Full-Speed controller and standard serial interfaces.
• Features high-resolution analog-to-digital conversion capabilities for precise sensor interfacing.

Applications

• Industrial control systems requiring robust data processing and communication.
• Medical devices utilizing high-precision analog input monitoring.
• Consumer electronics employing USB connectivity for host or device modes.

Procurement Notes

Verify the specific suffix 'MU' corresponds to the 64-pin LQFP industrial temperature grade variant. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications. Ensure the ordering part number matches the exact pin count and package dimensions required for your PCB footprint design.

Selection Notes

Select this component when a balance of high-performance computing and moderate peripheral density is required. The 120 MHz speed suits applications needing real-time response without excessive power consumption. Consider the 64-pin limitation if more general-purpose I/O lines are needed compared to larger packages.

Part Context

This MCU belongs to the SAM4S family, designed for cost-sensitive applications demanding Cortex-M4 performance. It shares architectural similarities with other SAM4S variants but differs in memory size and package options. The series targets embedded markets where reliability and low power operation are critical.

Replacement Considerations

Direct substitutes within the same package include ATSAM4S16BA-AU (Tray packaging) or ATSAM4S16BA-AUR (Tape & Reel). Cross-series migration to SAM4N or SAM4E requires schematic and software adaptation due to peripheral differences.