ATSAML11E14A-AF

Overview

The ATSAML11E14A-AF is a 32-bit microcontroller from the Microchip SAM L11 series, built on an ARM Cortex-M23 core. It features 16 kB of Flash program memory and 8 kB of SRAM data RAM. The device operates within a supply voltage range of 1.62 V to 3.63 V and supports a maximum clock frequency of 32 MHz. It includes a 12-bit ADC, a 10-bit DAC, and 25 general-purpose I/O pins. The component is housed in a TQFP-32 package and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates hardware security features including TrustZone-M and cryptographic accelerators for secure boot and data protection.
• Provides versatile communication interfaces such as SPI, I2C, USART, and LINbus via SERCOM peripherals.
• Includes advanced analog capabilities with multiple 12-bit ADC channels, a 10-bit DAC, operational amplifiers, and analog comparators.

Applications

• Secure IoT sensor nodes requiring encrypted data transmission
• Industrial control systems utilizing LINbus or UART communication
• Battery-powered devices leveraging low-power management modes

Procurement Notes

Verify the specific suffix 'AF' corresponds to the TQFP-32 tray packaging and +85°C temperature grade when sourcing. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure ESD handling protocols are followed during assembly due to the surface-mount nature of the component.

Selection Notes

Select this part for designs requiring a balance of moderate code storage and robust security features in a compact 32-pin form factor. It is suitable for applications needing multiple analog inputs and standard serial interfaces without the complexity of higher-end cores.

Part Context

This MCU belongs to the SAM L11 family, which targets cost-sensitive embedded applications demanding enhanced security. The series shares architectural similarities with other Cortex-M23 devices but distinguishes itself through integrated crypto engines and touch sensing capabilities.

Replacement Considerations

Check ATSAML11D14A variants for pin-compatible alternatives with different memory sizes. Verify ATSAML11E14A-MU for identical specifications in a QFN package if footprint changes are permissible.