ATSAML11E14A-AFT

Overview

The ATSAML11E14A-AFT is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, manufactured by Microchip Technology. It features 16 kB of Flash program memory and 8 kB of SRAM data RAM. The device operates with a maximum clock frequency of 32 MHz and supports a supply voltage range of 1.62 V to 3.63 V. It includes five 12-bit ADC channels and one 10-bit DAC. The component provides 25 general-purpose I/Os and integrates communication interfaces including I2C, LINbus, SPI, and UART/USART. It is housed in a TQFP-32 package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates hardware security features for secure boot and cryptographic operations
• Supports low-power operation modes suitable for battery-powered applications
• Includes advanced analog peripherals such as comparators and touch sensing capabilities

Applications

• Secure IoT sensor nodes
• Smart home devices requiring secure connectivity
• Industrial control systems with low power constraints

Procurement Notes

Verify the specific suffix 'AFT' against official Microchip documentation to confirm the exact packaging type and temperature grade, as distributor listings may vary. Ensure compatibility with required development tools and check for any recent Product Change Notifications (PCNs) affecting assembly sites or materials before finalizing procurement plans.

Selection Notes

Select this model when a balance of moderate memory capacity and robust security features is required for cost-sensitive embedded designs. The Cortex-M23 core offers efficient code density compared to older architectures. Consider the available I/O count and peripheral set against application requirements to ensure no resource bottlenecks exist during system integration.

Part Context

This component belongs to the SAM L11 series of microcontrollers, which are designed for ultra-low power applications with enhanced security. The series utilizes the ARM Cortex-M23 processor core, targeting markets that demand secure, energy-efficient processing solutions. It complements other SAM L1x variants offering different memory sizes and package options.

Replacement Considerations

Consult the SAM L11 Family Errata and Selector Guide for verified pin-to-pin or software-compatible alternatives within the same Microchip portfolio. Cross-referencing with similar part numbers like ATSAML11D14A or ATSAML11E16A may provide options with different memory configurations while maintaining functional compatibility.