ATSAMA5D28A-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D28A-CU is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D2 series, operating at 500MHz with 32-bit architecture. This device integrates multimedia co-processors, NEON MPE support, and comprehensive memory controllers supporting LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, and DDR3L. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

ATSAMA5D28A-CU

Microchip TechnologyIn Stock: 1161ATSAMA5D28A-CU Datasheet

Current PartRFQ

ATSAMA5D27C-CU

Microchip TechnologyIn Stock: 6841ATSAMA5D27C-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAMA5D28A-CU is determined by strict equivalence across the following critical parameters:

• Series and Architecture: Both parts must belong to the SAMA5D2 series with ARM Cortex-A5 core
• Processing Speed: 500MHz operation required
• Bus Width: 32-bit architecture maintained
• Package: 289-LFBGA (14x14) form factor for PCB compatibility
• I/O Voltage: 3.3V supply voltage
• Operating Temperature Range: -40°C to 85°C
• Memory Controller Support: LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI compatibility
• Interface Set: I2C, SMC, SPI, UART, USART, QSPI support
• Security Features: ARM TrustZone, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC

The ATSAMA5D27C-CU meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D27C-CU is the appropriate substitute for the obsolete ATSAMA5D28A-CU. Both parts maintain identical electrical specifications, memory controller support, interface capabilities, and security feature sets. The primary distinction is product status: ATSAMA5D28A-CU is obsolete while ATSAMA5D27C-CU is active, ensuring long-term availability and manufacturing support. Both parts carry ROHS3 compliance and identical export classifications (ECCN 5A992C, HTSUS 8542.31.0001), supporting regulatory continuity in design transitions.

Frequently Asked Questions (FAQ)

Q: Can ATSAMA5D27C-CU be used as a direct replacement for ATSAMA5D28A-CU in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters. No design modifications are required for PCB layout, power delivery, or firmware implementation.

Q: Are there any differences in package handling or moisture sensitivity?

A: No. Both parts use the 289-LFBGA (14x14) package with MSL 3 (168 Hours) rating. Handling and storage procedures remain identical.

Q: What is the primary reason for substitution?

A: The ATSAMA5D28A-CU is obsolete. The ATSAMA5D27C-CU is an active product from Microchip Technology, ensuring continued availability and manufacturing support.

Q: Are compliance certifications maintained with this substitution?

A: Yes. Both parts carry identical ROHS3 compliance, REACH unaffected status, and export classifications (ECCN 5A992C, HTSUS 8542.31.0001).

Q: Do the parts support the same memory configurations?

A: Yes. Both support LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, and QSPI memory controllers without variation.

Q: Are interface capabilities identical?

A: Yes. Both parts provide identical support for I2C, SMC, SPI, UART, USART, QSPI, Ethernet (10/100Mbps), USB 2.0 + HSIC, and security features including ARM TrustZone, cryptography, and secure memory.