ATSAM4S4BB-UUR

Overview

The ATSAM4S4BB-UUR is a 32-bit microcontroller from the Microchip SAM4S series, featuring an ARM Cortex-M4 core operating at 120MHz. It integrates 256KB of flash memory and 64KB of RAM within a 64-pin QFN package. The device supports a supply voltage range of 1.62V to 3.6V and includes interfaces such as USB, SPI, I2C, and USART. It offers 11-channel 12-bit ADCs and two 12-bit DACs, with an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
• Includes a comprehensive set of communication peripherals including USB Device/OTG, multiple SPI, I2C, and UART interfaces.
• Features built-in analog-to-digital converters and digital-to-analog converters for sensor interfacing and audio applications.

Applications

• Industrial control systems requiring robust peripheral connectivity
• Consumer electronics utilizing USB connectivity
• Medical devices needing precise analog signal acquisition

Procurement Notes

Verify the specific suffix 'UUR' against official Microchip documentation to confirm the tape-and-reel packaging and extended temperature grade. Ensure compatibility with existing PCB footprints for the 64-QFN package. Cross-reference the latest datasheet revision for any errata or pinout clarifications before finalizing procurement orders.

Selection Notes

Select this component when a balance of moderate flash capacity and extensive I/O is required in a compact footprint. Compare against the ATSAM4S4BB-AN variant if tray packaging is preferred over reel. Consider the ATSAM4S4CA series if additional GPIO count or external bus interface is necessary for the design.

Part Context

This part belongs to the SAM4S family, designed for cost-sensitive applications requiring Cortex-M4 performance. It shares architectural similarities with other SAM4S variants but differs in memory size and package options. The UUR suffix typically denotes specific packaging and temperature specifications within the broader product line.

Replacement Considerations

Direct substitutes include ATSAM4S4BB-AN (tray) and ATSAM4S4BB-MNR (QFN). Verify pin compatibility and thermal characteristics when switching packages. No cross-package replacement guarantees identical mechanical fit without layout review.

FAQ

What is the maximum operating frequency of the ATSAM4S4BB-UUR?

The microcontroller operates at a maximum clock speed of 120MHz.

Does this device support USB OTG functionality?

Yes, the SAM4S series includes a USB Device/On-The-Go controller.