ATSAML11D14A-YF

Overview

The ATSAML11D14A-YF is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family. It features 16KB of Flash memory, 8KB of SRAM, and a 2K x 8 EEPROM. The device operates at a maximum clock speed of 32MHz with an internal oscillator. It supports a supply voltage range of 1.62V to 3.63V and includes five 12-bit ADC channels and one 10-bit DAC. Connectivity options include I2C, LINbus, SPI, and UART/USART interfaces. The unit provides 17 general-purpose I/Os and integrates peripherals such as DMA, PWM, WDT, and power-on reset.

Feature Summary

• Integrates hardware security features for secure boot and code protection within the ARM Cortex-M23 architecture.
• Provides versatile serial communication capabilities through multiple SERCOM modules supporting standard protocols.
• Includes high-resolution analog-to-digital conversion and digital-to-analog conversion for sensor interfacing.

Applications

• Secure IoT edge devices requiring low-power operation
• Industrial control systems utilizing LINbus or SPI interfaces
• Battery-powered wearable electronics

Procurement Notes

Verify the package type matches your PCB design; this model uses a 24-SSOP housing. Confirm the suffix indicates the specific tube packaging variant rather than tape-and-reel. Ensure the operating temperature range meets your environmental requirements. Cross-reference the datasheet revision date to confirm compatibility with your development tools. Validate pinout assignments against your schematic before finalizing procurement orders.

Selection Notes

Select this component when a balance of cryptographic security and low power consumption is required. The 16KB Flash size suits applications with moderate firmware complexity. The 32MHz processing speed is adequate for real-time control tasks. Consider the 24-SSOP package if space constraints allow for larger footprints compared to QFN alternatives. Evaluate peripheral needs against the available SERCOM and ADC channels.

Part Context

This part belongs to the Microchip SAM L11 series, designed for ultra-low-power applications. It shares architectural similarities with other Cortex-M23 MCUs but emphasizes security features. The series offers various memory configurations and package options to accommodate different design constraints while maintaining consistent software compatibility across the family.

Replacement Considerations

The ATSAML11D14A-MUT serves as a functional substitute with identical core specifications but utilizes a 24-VQFN package instead of SSOP. Verify footprint compatibility and thermal management requirements when switching between these package types. Other SAM L11 variants may offer different memory sizes or I/O counts.