ATSAM4S2BB-MN

Overview

The ATSAM4S2BB-MN is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120 MHz. It features 128 KB of Flash program memory and 64 KB of SRAM. The device supports a supply voltage range of 1.62 V to 3.6 V and includes an internal oscillator. Connectivity options include I2C, SPI, SSC, UART/USART, IrDA, SD/MMC, and USB Full-Speed Device Port. It offers 47 general-purpose I/Os and integrates peripherals such as DMA, PWM, WDT, POR, and Brown-out Reset/Detector.

Feature Summary

• High-performance 32-bit ARM Cortex-M4 processor with hardware DSP instructions
• Integrated full-speed USB device port for communication applications
• Flexible peripheral set including multiple serial interfaces and analog converters
• Low-power operation with multiple sleep modes and power management features

Applications

• USB-enabled embedded control systems
• Industrial automation controllers
• Consumer electronics devices
• Medical equipment controllers

Procurement Notes

Verify the specific suffix 'MN' corresponds to the QFN-64 package and commercial temperature range during procurement. Confirm RoHS compliance status and ensure the ordering quantity matches distributor reel or tray specifications. Cross-reference the latest datasheet revision to confirm pinout compatibility and electrical characteristics before finalizing purchase orders.

Selection Notes

Select this component when a balance of processing power and connectivity is required within a compact footprint. The 128 KB Flash and 64 KB RAM are suitable for moderate firmware complexity. Ensure the design accommodates the 64-QFN thermal pad requirements and that the system voltage aligns with the 1.62 V to 3.6 V operating range.

Part Context

This part belongs to the SAM4S series of Microchip microcontrollers, which are built around the ARM Cortex-M4 architecture. The series provides scalable solutions with varying memory sizes and package options. The ATSAM4S2B variant specifically targets applications requiring USB connectivity and efficient code execution in space-constrained environments.

Replacement Considerations

Check for direct pin-to-pin replacements within the SAM4S family, such as ATSAM4S2BC or ATSAM4S2BD, which may offer different package types or temperature ranges. Verify that any substitute maintains the same Flash/RAM configuration and peripheral availability.