ATSAM4S16CA-CFU

Overview

The ATSAM4S16CA-CFU is a 32-bit ARM Cortex-M4 microcontroller from the SAM4S series, manufactured by Microchip Technology. It features 1 MB of in-system programmable Flash memory and 128 kB of SRAM. The device operates at a maximum clock frequency of 120 MHz and includes a 12-bit ADC with 16 channels. It provides 79 general-purpose I/Os and supports multiple communication interfaces including USB, SPI, SSC, UART/USART, I2C, IrDA, and EBI/EMI. The component is housed in a 100-pin VFBGA package (7x7 mm) and functions within an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for high-performance signal processing and control applications.
• Includes extensive connectivity options such as USB Full-Speed interface and multiple serial communication peripherals.
• Features built-in analog-to-digital conversion capabilities with 12-bit resolution for sensor interfacing.

Applications

• Industrial control systems requiring robust processing and wide temperature operation
• Smart metering and utility automation devices
• Medical equipment utilizing precise analog signal acquisition

Procurement Notes

Verify the specific suffix CFU corresponds to the 100-VFBGA package and industrial temperature grade (-40°C to +105°C). Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure design compatibility with the 1.62V to 3.6V supply voltage range and check for any relevant errata sheets affecting silicon revision or peripheral behavior.

Selection Notes

Select this component when a balance of high-speed processing and significant memory capacity is required in a compact surface-mount package. Compare against the ATSAM4SA16CA-CFU if increased RAM size is necessary, or consider the ATSAM4S16CA-CU for alternative BGA packaging options. Evaluate pin count requirements against the available 79 I/Os to ensure sufficient connectivity for the target application.

Part Context

This part belongs to the SAM4S family of microcontrollers, which are designed for cost-sensitive applications demanding Cortex-M4 performance. The family shares common architectural features but varies in memory size, package type, and temperature rating. The ATSAM4S16CA-CFU represents a mid-range configuration within the 1MB Flash segment of the series.

Replacement Considerations

ATSAM4SA16CA-CFU offers identical Flash memory but with 160 kB SRAM and the same VFBGA package. ATSAM4S16CA-CU provides the same specifications in a TFBGA-100 package. Verify pinout compatibility and thermal characteristics before substituting.