ATSAM3S1BA-MU

Overview

The ATSAM3S1BA-MU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 64 MHz. It features 64 kB of embedded Flash memory and 16 kB of SRAM. The device includes an integrated USB Device port with an embedded transceiver, multiple communication interfaces including SPI, UART, and I2C, and a 10-channel 10-bit ADC. It operates within a voltage range of 1.62 V to 1.95 V for the core and supports 3.3 V I/O levels.

Feature Summary

• Integrates a high-performance ARM Cortex-M3 processor with Thumb-2 instruction set support.
• Provides flexible connectivity through USB Device, USART, UART, SPI, and TWI interfaces.
• Includes an external bus interface supporting static memory controllers for SRAM, NOR, and NAND Flash.

Applications

• Consumer electronics requiring low power consumption
• Industrial control systems and instrumentation
• Medical devices and test equipment
• Wireless networking peripherals

Procurement Notes

Verify the specific suffix 'MU' indicates the QFN-64 package and industrial temperature range as per official Microchip documentation. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure ESD handling procedures are followed during procurement and storage.

Selection Notes

Select this component when a balance of moderate memory capacity and rich peripheral integration is required. It serves as a pin-compatible upgrade path from legacy AT91SAM7S series devices. Consider its 64 MHz performance and power efficiency for applications needing efficient code execution without excessive energy usage.

Part Context

This part belongs to the SAM3S family of 32-bit Flash microcontrollers designed by Atmel (now Microchip Technology). The series targets cost-sensitive applications while offering enhanced connectivity and power management features compared to previous generations.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the SAM3S series, such as variants with different memory sizes. Verify that any substitute maintains the same package type and electrical specifications for seamless integration.