ATSAMHA1G14A-MBT

Overview

The ATSAMHA1G14A-MBT is a System-in-Package (SiP) automotive microcontroller integrating an ARM Cortex-M0+ core, LIN transceiver, and voltage regulator. It features 16 kB Flash, 4 kB SRAM, and operates at up to 48 MHz. The device supports 32 I/O pins in a VQFN-48 package. It includes a 12-bit ADC with 13 channels, a 10-bit DAC, and five SERCOM interfaces. Qualified under AEC-Q100 for -40°C to +105°C operation, it provides robust power management with sleep currents as low as 9 µA.

Feature Summary

• Integrates a 32-bit ARM Cortex-M0+ processor with a fully compliant LIN system basis chip and a 3.3V linear voltage regulator.
• Supports automotive-grade reliability through AEC-Q100 qualification and comprehensive protection against short circuits and over-temperature conditions.
• Enables ultra-low power consumption via dedicated sleep and silent modes that minimize current draw during inactive bus states.

Applications

• Automotive convenience electronics slave nodes
• LIN bus network communication systems
• Low-power vehicle sensor interfaces

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing design constraints regarding the VQFN-48 footprint and thermal requirements. Confirm that the integrated LIN transceiver specifications meet the target application's electrical standards before finalizing procurement.

Selection Notes

Select this component when designing automotive LIN slave nodes requiring integrated power regulation and transceiver functionality. The combination of processing power and low standby current makes it suitable for battery-operated applications. Evaluate the available memory sizes within the SAM HA1 series to match code complexity and data storage needs.

Part Context

This part belongs to the Atmel SMART SAM HA1 A family, designed specifically for automotive applications. The series combines MCU capabilities with a LIN SBC to simplify hardware design. It targets the growing demand for efficient, reliable communication in modern vehicle networks while maintaining strict automotive quality standards.

Replacement Considerations

Consult official Microchip documentation for verified substitute part numbers within the SAM HA1 series or compatible automotive MCU families. Do not assume functional equivalence with non-integrated solutions without thorough validation of the LIN transceiver and regulator specifications.

FAQ

What are the operating supply voltage ranges for the LIN SBC?

The LIN SBC operates with a supply voltage VS ranging from 5V to 28V, with a maximum rating of 40V.

How does the device handle wake-up events from sleep mode?

The device supports remote wake-up via the LIN bus. A falling edge followed by a dominant bus level triggers a wake-up request, switching the IC to fail-safe mode.