ATSAML11E14A-MU

Overview

The ATSAML11E14A-MU is a 32-bit ARM Cortex-M23 microcontroller from the SAM L11 family, manufactured by Microchip Technology. It features 16 kB of Flash memory and 4 kB of SRAM, operating at a maximum clock frequency of 32 MHz. The device supports a supply voltage range of 1.62 V to 3.63 V and includes 25 programmable I/Os. Key peripherals include five 12-bit ADC channels, one 10-bit DAC, and communication interfaces such as I2C, SPI, UART/USART, and LINbus. It operates within a temperature range of -40°C to +85°C and is housed in a 32-VQFN package.

Feature Summary

• Integrates hardware security features including AES, SHA-256, and True Random Number Generator for secure boot and data protection.
• Supports low-power operation with multiple sleep modes and fast wake-up times suitable for battery-powered applications.
• Includes advanced analog peripherals with programmable gain amplifiers and comparators for signal conditioning.

Applications

• Secure IoT sensor nodes requiring encrypted communication
• Smart energy metering devices with tamper detection
• Industrial control systems needing reliable LINbus connectivity

Procurement Notes

Verify the specific suffix 'MU' corresponds to the 32-VQFN package and commercial temperature grade during procurement. Confirm RoHS compliance status via the latest datasheet revision. Ensure ESD handling procedures are followed due to the exposed pad thermal design. Cross-reference the full part number with Microchip's official distributor list to avoid counterfeit components.

Selection Notes

Select this component when a balance of moderate code storage and robust security features is required. It is suitable for designs transitioning from 8-bit MCUs that need enhanced cryptographic capabilities without significant power consumption increases. Consider the 32-VQFN footprint for PCB layout constraints and thermal management requirements in compact enclosures.

Part Context

This MCU belongs to the SAM L11 series, which is designed for secure, low-power embedded applications. It shares architectural similarities with the SAM L10 series but offers increased memory and additional analog peripherals. The Cortex-M23 core provides efficient execution of C/C++ code while maintaining low power usage, making it ideal for resource-constrained environments.

Replacement Considerations

ATSAML11D14A-MUT (24-VQFN, 17 I/Os)

FAQ

What security algorithms are supported by the ATSAML11E14A-MU?

It supports AES-128/192/256, SHA-256, and includes a True Random Number Generator (TRNG) for cryptographic operations.

Does the ATSAML11E14A-MU support LINbus communication?

Yes, the device includes SERCOM modules configured to support LINbus protocol in addition to standard I2C, SPI, and UART.