ATSAM4S16CA-CU

Overview

The ATSAM4S16CA-CU 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 embedded Flash memory and 128 KB of SRAM. The device is housed in a 100-TFBGA (9x9) package with 79 I/O pins. It supports a supply voltage range of 1.62 V to 3.6 V and operates within a temperature range of -40°C to +105°C. Key peripherals include USB 2.0, multiple communication interfaces, and 12-bit ADCs.

Feature Summary

• Integrates an ARM Cortex-M4 processor with DSP instructions and a Memory Protection Unit for secure execution.
• Includes an embedded voltage regulator enabling single-supply operation across the specified voltage range.
• Features high-precision internal RC oscillators with factory trimming for reliable device startup without external crystals.
• Supports low-power modes including Sleep and Backup, achieving current consumption down to 1 µA in Backup Mode.

Applications

• Industrial control systems requiring robust processing and wide temperature tolerance.
• Smart metering applications utilizing the integrated security features and power management.
• Consumer electronics devices needing efficient USB connectivity and low-power standby capabilities.

Procurement Notes

Verify the specific suffix 'CU' corresponds to the 100-TFBGA package and industrial temperature grade (-40°C to +105°C). Confirm that the component status is listed as Active or Recommended for New Designs in official Microchip documentation. Ensure compatibility with existing PCB footprints for the 100-TFBGA form factor before procurement.

Selection Notes

Select this model when 1 MB of Flash and 120 MHz performance are required in a compact TFBGA package. It is suitable for designs needing extensive I/O count (79 pins) and integrated USB functionality. Consider alternative packages like LQFP if surface-mount constraints differ, or other SAM4S variants if memory requirements change.

Part Context

This component belongs to the SAM4S family, which provides pin-to-pin compatibility with SAM3N and SAM3S products. The series is designed for applications demanding high performance combined with low power consumption. It serves as a successor to legacy SAM7S devices, offering enhanced processing capabilities and modern peripheral sets while maintaining architectural familiarity.

Replacement Considerations

ATSAM4S16CB-CN

FAQ

What is the maximum operating frequency of the ATSAM4S16CA-CU?

The ARM Cortex-M4 core operates at a maximum speed of 120 MHz.

Does the ATSAM4S16CA-CU support single-supply operation?

Yes, it includes an embedded voltage regulator that allows for single-supply operation within the 1.62 V to 3.6 V range.