ATSAMA5D44A-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D44A-CU 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 functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

ATSAMA5D44A-CU

Microchip TechnologyIn Stock: 3055ATSAMA5D44A-CU Datasheet

Current PartRFQ

ATSAMA5D44B-CU

Microchip TechnologyIn Stock: 3338ATSAMA5D44B-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAMA5D44A-CU 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: 361-TFBGA (16x16) ball grid array for PCB footprint compatibility
• Peripheral Integration: Identical LCD/touchscreen controllers, Ethernet (10/100Mbps), USB 2.0 (3 ports), and serial interfaces (UART, USART, SPI, I2C, SSC, MMC/SD/SDIO)
• Memory Controllers: LPDDR, LPDDR2, DDR2 support
• Security Features: AES, SHA, TDES, TRNG cryptographic acceleration
• Voltage Rails: 1.2V, 1.8V, 3.3V I/O compatibility
• Environmental Specifications: -40°C to 85°C operating range, MSL 3 rating, ROHS3 compliance

The ATSAMA5D44B-CU meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D44B-CU is the direct functional equivalent of the ATSAMA5D44A-CU. Both parts share identical electrical specifications, peripheral integration, security features, and package geometry. The primary distinction is product lifecycle status: the ATSAMA5D44A-CU is obsolete, while the ATSAMA5D44B-CU maintains active production status from Microchip Technology.

For new designs or production continuity, the ATSAMA5D44B-CU is the appropriate selection. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The identical MSL 3 rating and operating temperature range (-40°C to 85°C) support equivalent handling and deployment requirements.

Frequently Asked Questions (FAQ)

Q: Can ATSAMA5D44B-CU directly replace ATSAMA5D44A-CU in existing designs?

A: Yes. The ATSAMA5D44B-CU is electrically and mechanically equivalent. Both parts feature identical ARM Cortex-A5 architecture, 600MHz clock speed, 361-TFBGA package, peripheral interfaces, and voltage specifications. No design modifications are required.

Q: Are there differences in package or pinout between these parts?

A: No. Both parts use the 361-TFBGA (16x16) package with identical ball grid array configuration. PCB footprints and assembly processes remain unchanged.

Q: What is the significance of the product status difference?

A: The ATSAMA5D44A-CU is classified as obsolete, indicating Microchip Technology has discontinued production. The ATSAMA5D44B-CU maintains active production status, ensuring long-term availability and supply chain continuity.

Q: Are compliance certifications identical?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications. Environmental and regulatory requirements are equivalent.

Q: Do these parts support the same memory and peripheral configurations?

A: Yes. Both support LPDDR, LPDDR2, and DDR2 memory controllers, identical LCD/touchscreen interfaces, 10/100Mbps Ethernet, USB 2.0 (3 ports), and all serial communication protocols (UART, USART, SPI, I2C, SSC, MMC/SD/SDIO).