ATSAMA5D27A-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D27A-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 IC features integrated graphics acceleration, display controllers for keyboard/LCD/touchscreen interfaces, 10/100Mbps Ethernet, USB 2.0 with HSIC, and extensive security features including ARM TrustZone, cryptography, and secure memory.

The ATSAMA5D27A-CU is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production and support requirements.

Substiute Parts

ATSAMA5D27A-CU

Microchip TechnologyIn Stock: 1235ATSAMA5D27A-CU Datasheet

Current PartRFQ

ATSAMA5D27C-CU

Microchip TechnologyIn Stock: 6841ATSAMA5D27C-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAMA5D27A-CU is determined by strict equivalence across the following critical parameters:

• ARM Cortex-A5 core processor architecture
• 1 Core, 32-Bit configuration
• 500MHz operating frequency
• 289-LFBGA (14x14) package footprint
• 3.3V I/O voltage specification
• -40°C to 85°C operating temperature range
• Surface mount mounting type
• Identical co-processor and memory controller support (Multimedia, NEON MPE, LPDDR1/LPDDR2/LPDDR3, DDR2/DDR3/DDR3L, QSPI)
• Matching interface controllers and peripheral support
• ROHS3 compliance and equivalent regulatory status

The ATSAMA5D27C-CU meets all substitution criteria and is classified as an active product, providing improved availability compared to the obsolete ATSAMA5D27A-CU.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D27C-CU is the direct substitute for the ATSAMA5D27A-CU. Both devices are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements. The primary distinction is product status: the ATSAMA5D27A-CU is obsolete, while the ATSAMA5D27C-CU maintains active production status with significantly higher inventory availability (6745 units versus 1154 units).

All electrical, mechanical, and functional parameters are identical between the two parts. The ATSAMA5D27C-CU is supplied in tray packaging, consistent with standard production configurations. Selection of the ATSAMA5D27C-CU ensures long-term component availability and eliminates obsolescence risk.

Frequently Asked Questions (FAQ)

Q: Are the ATSAMA5D27A-CU and ATSAMA5D27C-CU pin-compatible?

A: Yes. Both devices use the 289-LFBGA (14x14) package with identical pinout, voltage specifications (3.3V I/O), and interface configurations. Direct PCB-level substitution is supported without design modification.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching ARM Cortex-A5 core architecture, 1 Core 32-Bit configuration, 500MHz frequency, 289-LFBGA package, 3.3V I/O voltage, -40°C to 85°C operating range, and identical co-processor/memory controller support. All parameters must align for functional equivalence.

Q: Does the packaging difference affect compatibility?

A: The ATSAMA5D27A-CU is supplied without specified packaging, while the ATSAMA5D27C-CU is supplied in tray packaging. This represents a logistics difference only and does not affect electrical or mechanical compatibility. Both devices meet identical MSL 3 (168 Hours) moisture sensitivity requirements.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected. ECCN and HTSUS classifications are identical. Regulatory and compliance status is equivalent.

Q: Why should I select the ATSAMA5D27C-CU over the ATSAMA5D27A-CU?

A: The ATSAMA5D27C-CU is classified as active product with substantially higher inventory availability. The ATSAMA5D27A-CU is obsolete, presenting supply chain risk. All functional and electrical parameters are identical, making the ATSAMA5D27C-CU the preferred selection for new designs and ongoing production.