ATSAML11E16A-MFKPH

Overview

The ATSAML11E16A-MFKPH is a 32-bit microcontroller from the SAM L11 series, manufactured by Microchip Technology. It features an ARM Cortex-M23 core operating at a maximum frequency of 32 MHz. The device integrates 64 kB of Flash program memory and 16 kB of SRAM data memory. It includes a 12-bit ADC resolution and provides 25 I/O pins. The unit operates within a voltage range of 900 mV to 3.63 V and supports temperatures from -40°C to +125°C. It is housed in a QFN-32 package.

Feature Summary

• Supports Arm TrustZone for Armv8-M architecture for hardware-based security isolation
• Integrates low-power peripherals including DMA, PWM, and watchdog timer
• Features internal oscillator with multiple communication interfaces such as SPI, I2C, and UART

Applications

• Battery-powered IoT sensor nodes requiring ultra-low power consumption
• Industrial control systems needing secure boot and trusted execution environments
• Wearable electronics demanding compact packaging and extended temperature operation

Procurement Notes

Verify the specific suffix MFKPH to confirm the QFN-32 tray packaging variant. Ensure compatibility with existing PCB footprints designed for this package type. Confirm that the required temperature range meets the operational environment specifications. Check for any recent production changes or obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a balance of moderate memory capacity and high security features is required. The QFN-32 package offers a compact solution for space-constrained designs. Consider the 125°C rating for industrial applications where standard commercial grade parts may fail. Evaluate the available I/O count against peripheral requirements to ensure sufficient connectivity without external multiplexing.

Part Context

This part belongs to the SAM L11 family, which focuses on ultra-low power performance combined with Arm TrustZone security. The E16 designation typically indicates the 64 kB Flash configuration within this series. The MFKPH suffix distinguishes it from other packaging options like MUT (VQFN) or UUT (WLCSP).

Replacement Considerations

Direct substitutes include other SAM L11 variants with similar memory sizes but different packages, such as ATSAML11E16A-MUT for VQFN-32. Cross-package replacements require careful review of pinout compatibility and thermal management strategies.