ATSAMHA1G14A-MBT Equivalent & Substitute Parts

Part Overview

The ATSAMHA1G14A-MBT is an ARM Cortex-M0+ SAM HA1 Functional Safety (FuSa) microcontroller manufactured by Microchip Technology. This 32-bit single-core device operates at 48MHz with 16KB FLASH memory and is packaged in a 48-VQFN (7x7) surface mount configuration. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for ongoing design support, production continuity, and system maintenance.

Substiute Parts

ATSAMHA1G14A-MBT

Microchip TechnologyIn Stock: 961ATSAMHA1G14A-MBT Datasheet

Current PartRFQ

ATSAMHA1G14A-MBT-BVAO

Microchip TechnologyIn Stock: 744ATSAMHA1G14A-MBT-BVAO Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAMHA1G14A-MBT is determined by strict equivalence across the following critical parameters:

Core Functional Parameters:

• ARM Cortex-M0+ processor architecture
• 32-bit single-core configuration
• 48MHz operating frequency
• 16KB FLASH program memory
• 4K x 8 RAM capacity
• 512 x 8 EEPROM size

Electrical Parameters:

• Supply voltage range: 0V ~ 3.8V
• Data converter specifications: A/D 13x12b; D/A 1x10b
• Identical peripheral set: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity interfaces: I2C, LINbus SBC, SPI, UART/USART
• 32 I/O pins

Environmental & Compliance Parameters:

• Operating temperature: -40°C ~ 105°C (TC)
• Automotive grade qualification
• AEC-Q100 certification
• ROHS3 compliance

Physical Parameters:

• 48-VFQFN Exposed Pad package
• Surface mount, wettable flank mounting type

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMHA1G14A-MBT-BVAO is a direct parametric equivalent to the ATSAMHA1G14A-MBT across all functional, electrical, and mechanical specifications. Both parts share identical core processor architecture, memory configuration, operating frequency, voltage supply range, peripheral set, connectivity interfaces, I/O count, temperature rating, automotive grade, and AEC-Q100 qualification.

The primary distinction between these parts is product status and moisture sensitivity level. The ATSAMHA1G14A-MBT is classified as obsolete, while the ATSAMHA1G14A-MBT-BVAO maintains active product status. The ATSAMHA1G14A-MBT-BVAO features MSL 1 (unlimited moisture exposure), compared to MSL 3 (168 hours) for the original part, providing enhanced handling flexibility during manufacturing and storage.

For new designs, production continuity, or system maintenance requiring component replacement, the ATSAMHA1G14A-MBT-BVAO is the appropriate selection. Both parts are ROHS3 compliant and suitable for automotive applications requiring functional safety qualification.

Frequently Asked Questions (FAQ)

Q: Can ATSAMHA1G14A-MBT-BVAO be used as a direct replacement for ATSAMHA1G14A-MBT?

A: Yes. Both parts are parametric equivalents with identical core processor, memory, speed, voltage supply, data converters, connectivity, peripherals, I/O count, operating temperature range, automotive grade, and AEC-Q100 qualification. The 48-VFQFN Exposed Pad package and surface mount configuration are identical, enabling direct substitution at the board level.

Q: What is the significance of the different MSL ratings?

A: MSL 3 (168 hours) limits moisture exposure to 168 hours before reflow soldering, requiring controlled storage conditions. MSL 1 (unlimited) permits indefinite moisture exposure without storage restrictions. The ATSAMHA1G14A-MBT-BVAO's MSL 1 rating provides greater manufacturing flexibility and reduces risk of moisture-related failures during extended storage or delayed assembly.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ATSAMHA1G14A-MBT and ATSAMHA1G14A-MBT-BVAO carry automotive grade qualification and AEC-Q100 certification, meeting automotive industry reliability and quality standards.

Q: Why is the original part listed as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand, production economics, and technology roadmap decisions. The ATSAMHA1G14A-MBT-BVAO remains in active production, ensuring continued availability for new and existing applications.

Q: Are there any differences in pin configuration or package dimensions?

A: No. Both parts use the 48-VFQFN Exposed Pad package with identical pin configuration, pitch, and physical dimensions. PCB layouts and footprints are interchangeable.

Q: What certifications apply to both parts?

A: Both parts are ROHS3 compliant and carry AEC-Q100 automotive qualification. Both support functional safety (FuSa) requirements inherent to the SAM HA1 series architecture.