ATSAMA5D44A-CUR Equivalent & Substitute Parts

Part Overview

The ATSAMA5D44A-CUR is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D4 series, operating at 600MHz with 32-bit architecture. This embedded processor integrates multimedia acceleration, NEON SIMD co-processing, and comprehensive peripheral interfaces including LCD/touchscreen controllers, Ethernet, USB 2.0, and multiple serial communication protocols. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

ATSAMA5D44A-CUR

Microchip TechnologyIn Stock: 738ATSAMA5D44A-CUR Datasheet

Current PartRFQ

ATSAMA5D44B-CUR

Microchip TechnologyIn Stock: 3041ATSAMA5D44B-CUR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAMA5D44A-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
• Core Configuration: Single core, 32-bit bus width
• Co-Processing Capabilities: Multimedia acceleration and NEON SIMD support
• Memory Controller Support: LPDDR, LPDDR2, and DDR2 compatibility
• Peripheral Integration: LCD/touchscreen controllers, 10/100Mbps Ethernet, USB 2.0 (3 ports), and complete serial interface suite
• Electrical Specifications: Identical I/O voltage levels (1.2V, 1.8V, 3.3V) and operating temperature range
• Security Implementation: AES, SHA, TDES, and TRNG cryptographic features
• Package Specification: 361-TFBGA (16x16) ball grid array with surface mount configuration
• Compliance Standards: ROHS3 compliance and MSL 3 rating

The ATSAMA5D44B-CUR meets all substitution criteria as a direct functional equivalent within the SAMA5D4 series.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D44B-CUR is the direct substitute for the obsolete ATSAMA5D44A-CUR. Both parts maintain identical electrical, functional, and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: ATSAMA5D44A-CUR is obsolete while ATSAMA5D44B-CUR is active production.

Selection of ATSAMA5D44B-CUR is appropriate for new designs and production continuity. Both parts carry ROHS3 compliance certification and identical MSL ratings, ensuring equivalent environmental and regulatory compliance. The packaging specification (361-TFBGA 16x16) and mounting methodology remain unchanged, permitting direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can ATSAMA5D44B-CUR be used as a direct replacement for ATSAMA5D44A-CUR in existing designs?

A: Yes. The parts are functionally and electrically identical across all specified parameters. PCB layout, signal routing, and peripheral configuration require no modification. The 361-TFBGA package dimensions and ball assignments are identical.

Q: What is the primary reason for substitution?

A: ATSAMA5D44A-CUR is classified as obsolete. ATSAMA5D44B-CUR is the active equivalent from Microchip Technology, ensuring continued supply chain availability and manufacturing support.

Q: Are there differences in packaging or handling?

A: ATSAMA5D44B-CUR is supplied in Tape & Reel (TR) format, while ATSAMA5D44A-CUR packaging is not specified. Both parts maintain identical MSL 3 rating (168 hours) and require equivalent moisture control during storage and assembly.

Q: Do the parts have identical security feature implementations?

A: Yes. Both parts integrate AES, SHA, TDES, and TRNG cryptographic engines with identical functional specifications.

Q: Are there any voltage or temperature operating differences?

A: No. Both parts operate across identical I/O voltage levels (1.2V, 1.8V, 3.3V) and temperature range (-40°C to 85°C TA).

Q: Is the peripheral interface configuration identical?

A: Yes. Both parts provide identical LCD/touchscreen controllers, 10/100Mbps Ethernet, USB 2.0 (3 ports), and complete serial interface support (EBI, I2C, MMC/SD/SDIO, SPI, SSC, UART, USART).