ATSAMA5D43A-CUR Equivalent & Substitute Parts

Part Overview

The ATSAMA5D43A-CUR is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D4 series, featuring a single 32-bit core operating at 600MHz with integrated multimedia and NEON SIMD co-processors. This embedded processor includes graphics acceleration, LCD/touchscreen controllers, 10/100Mbps Ethernet, USB 2.0 interfaces, and comprehensive security features including AES, SHA, TDES, and TRNG. The device is packaged in a 289-LFBGA (14x14) form factor with surface mount configuration.

The ATSAMA5D43A-CUR carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this microprocessor architecture.

Substiute Parts

ATSAMA5D43A-CUR

Microchip TechnologyIn Stock: 1058ATSAMA5D43A-CUR Datasheet

Current PartRFQ

ATSAMA5D43B-CUR

Microchip TechnologyIn Stock: 3218ATSAMA5D43B-CUR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAMA5D43A-CUR is determined by strict equivalence across the following critical parameters:

• Processor Architecture: ARM Cortex-A5 core with identical instruction set compatibility
• Clock Speed: 600MHz operation
• Package Specification: 289-LFBGA (14x14) form factor with identical pinout and ball grid array configuration
• Mounting Type: Surface mount technology
• Operating Temperature Range: -40°C to 85°C
• I/O Voltage Levels: 1.2V, 1.8V, 3.3V compatibility
• Peripheral Integration: Identical controller sets for LCD, touchscreen, Ethernet, USB, and security functions
• Compliance Standards: ROHS3 compliance and equivalent regulatory certifications

The ATSAMA5D43B-CUR meets all substitution criteria as a direct equivalent within the SAMA5D4 series, maintaining full electrical and mechanical compatibility while offering Active product status.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D43B-CUR is a direct substitute for the ATSAMA5D43A-CUR. Both devices maintain identical electrical specifications, peripheral configurations, and package geometry. The primary distinction is product lifecycle status: the ATSAMA5D43A-CUR is classified as Obsolete, while the ATSAMA5D43B-CUR maintains Active status with current manufacturing support.

Selection of the ATSAMA5D43B-CUR provides continued access to a functionally equivalent processor with assured supply chain availability. Both parts satisfy ROHS3 compliance requirements and equivalent regulatory certifications (REACH Unaffected, ECCN 5A992C, HTSUS 8542.31.0001). The substitution maintains full compatibility with existing PCB layouts, firmware implementations, and system architectures designed for the SAMA5D4 series.

Frequently Asked Questions (FAQ)

Q: Are the ATSAMA5D43A-CUR and ATSAMA5D43B-CUR pin-compatible?

A: Yes. Both devices use the 289-LFBGA (14x14) package with identical pinout configuration. PCB layouts designed for either part are directly interchangeable.

Q: What is the difference between these two part numbers?

A: The ATSAMA5D43A-CUR is Obsolete, while the ATSAMA5D43B-CUR is Active. All electrical specifications, processor architecture, clock speed, peripheral integration, and security features are identical. The difference reflects manufacturing lifecycle status only.

Q: Can I use the ATSAMA5D43B-CUR as a direct replacement in existing designs?

A: Yes. The ATSAMA5D43B-CUR is a direct electrical and mechanical equivalent. No design modifications are required for substitution.

Q: Are there any differences in operating temperature ranges?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (TA).

Q: Do both parts support the same peripheral interfaces?

A: Yes. Both devices include identical support for LCD, touchscreen, Ethernet, USB 2.0, I2C, SPI, UART, USART, MMC/SD/SDIO, and SSC interfaces.

Q: Are the security features identical?

A: Yes. Both parts include identical security implementations: AES, SHA, TDES, and TRNG.

Q: What is the moisture sensitivity level for these components?

A: Both parts carry MSL 3 (168 Hours) classification, indicating identical moisture handling requirements during storage and assembly.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the ATSAMA5D43A-CUR and ATSAMA5D43B-CUR are ROHS3 compliant with REACH Unaffected status.