ATSAML11E15A-AUKPH

Overview

The ATSAML11E15A-AUKPH is a Microchip Technology ARM microcontroller based on the Cortex-M23 core, operating at a maximum clock frequency of 32 MHz. It features 32 kB of Flash program memory and 8 kB of SRAM data RAM. The device supports a supply voltage range from 1.62 V to 3.63 V and includes a 12-bit ADC with 10 channels and a 10-bit DAC. It provides 25 I/O pins and integrates communication interfaces including I2C, LIN, RS-485, SPI, and USART. The component is housed in a WLCSP-32 package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates hardware security features including TrustZone-M and cryptographic accelerators for secure key provisioning.
• Includes a Peripheral Touch Controller (PTC) for capacitive touch sensing applications.
• Supports multiple serial communication protocols via SERCOM peripherals, including LINbus and RS-485.
• Features an Analog Comparator (AC) and operational amplifier for signal conditioning tasks.

Applications

• Secure IoT sensor nodes requiring hardware-based authentication
• Capacitive touch interface controllers
• Low-power industrial communication devices supporting LINbus or RS-485
• Battery-powered embedded systems

Procurement Notes

Verify the specific suffix 'UUTKPH' against official Microchip documentation to confirm the WLCSP-32 packaging and commercial temperature grade. Ensure compatibility with existing board layouts due to the wafer-level chip-scale package format. Cross-reference the part number with current datasheets to validate pinout assignments and electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when a balance of low power consumption and enhanced security is required for compact designs. The WLCSP-32 package offers a small footprint suitable for space-constrained applications. Consider the 32 MHz performance limit and 32 kB memory size relative to application complexity. Verify that the 1.62 V minimum supply voltage aligns with the system's power architecture.

Part Context

This part belongs to the ATSAML11 family of Microchip microcontrollers, which are designed around the ARM Cortex-M23 core. The series emphasizes security and low power consumption, targeting Internet of Things (IoT) and wearable applications. The L11 variant specifically adds advanced security features and touch capabilities compared to the base L10 series.

Replacement Considerations

Consult official Microchip substitution guides for verified alternatives. Generic cross-references may not account for differences in security modules or package dimensions. Verify functional equivalence regarding the TrustZone-M implementation and PTC availability if replacing with other SAM L1x variants.