ATSAMHA0E14A-MZT-BVAO

Overview

The ATSAMHA0E14A-MZT-BVAO is an automotive-grade System in Package (SiP) microcontroller manufactured by Microchip Technology. It integrates a 32-bit ARM Cortex-M0 core with LIN transceiver and voltage regulator capabilities, designed for robust vehicle network communication. The device features 16 kB of Flash program memory and 2 kB of SRAM data memory. It operates within a supply voltage range of 5 V to 28 V and supports a maximum clock frequency of 48 MHz. The component includes a 12-bit ADC with 10 channels, a 10-bit DAC, and multiple serial communication interfaces including SPI, I2C, and UART. It is housed in a VQFN-48 package and is qualified to AEC-Q100 standards for operation between -40°C and +105°C.

Feature Summary

• Integrated LIN system solution combining MCU, transceiver, and voltage regulation in a single package
• Automotive qualification compliant with AEC-Q100 reliability standards
• Wide operating voltage range suitable for 12V and 24V vehicle electrical systems

Applications

• LIN bus node implementation in automotive body electronics
• Door module control units
• Seat adjustment controllers
• Mirror actuation systems

Procurement Notes

Verify the specific suffix MZT-BVAO against the official Microchip datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the VQFN-48 form factor. Confirm that the integrated LIN transceiver characteristics meet the requirements of the target vehicle network topology before finalizing procurement.

Selection Notes

Select this component when a compact, automotive-compliant solution is required for LIN communication without external transceivers. The integration of the voltage regulator simplifies power design for 12V/24V systems. Compare pin counts and peripheral availability against other SAMH series variants to ensure sufficient I/O resources for the specific application interface needs.

Part Context

This part belongs to the Microchip SAMH family of automotive microcontrollers. These devices are specifically engineered to reduce board space and component count by integrating the MCU, LIN transceiver, and LDO regulator. The family targets cost-sensitive and space-constrained automotive applications requiring reliable local interconnect network communication.

Replacement Considerations

Cross-reference with other SAMH series parts such as ATSAMHA0E15A or ATSAMHA1G14A for pin-compatible alternatives with different memory sizes or feature sets. Verify that any substitute maintains the same AEC-Q100 qualification and package dimensions.