ATSAMA5D24B-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D24B-CU is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D2 series, featuring a single 32-bit core operating at 500MHz in a 256-TFBGA (8x8) package. This embedded processor integrates multimedia acceleration, multiple memory controllers, graphics acceleration, and comprehensive security features including ARM TrustZone, cryptography, and secure boot capabilities. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

ATSAMA5D24B-CU

Microchip TechnologyIn Stock: 979ATSAMA5D24B-CU Datasheet

Current PartRFQ

ATSAMA5D24C-CU

Microchip TechnologyIn Stock: 1096ATSAMA5D24C-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAMA5D24B-CU is determined by strict equivalence across the following critical parameters:

• Processor Architecture & Performance: ARM Cortex-A5 core, 1 core, 32-bit, 500MHz operation
• Package & Pinout: 256-TFBGA (8x8) surface mount package
• Memory Controller Support: LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI compatibility
• Peripheral Integration: Identical Ethernet (10/100Mbps), USB 2.0 + HSIC, and interface support (I2C, SMC, SPI, UART, USART, QSPI)
• Graphics & Display: Graphics acceleration and display controller functionality
• Security Architecture: Complete ARM TrustZone, cryptography, and secure boot implementation
• Electrical Specifications: 3.3V I/O voltage, -40°C to 85°C operating temperature range
• Compliance: ROHS3 compliance and MSL 3 rating

The ATSAMA5D24C-CU meets all these criteria as a direct functional equivalent within the SAMA5D2 series.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D24C-CU is the direct equivalent substitute for the obsolete ATSAMA5D24B-CU. Both parts are functionally identical across all electrical, mechanical, and performance parameters. The primary distinction is product status: the ATSAMA5D24B-CU is obsolete, while the ATSAMA5D24C-CU maintains active production status with Microchip Technology.

Both parts maintain identical ROHS3 compliance and MSL 3 ratings, ensuring equivalent environmental and regulatory qualification. Selection of the ATSAMA5D24C-CU eliminates obsolescence risk while preserving complete design compatibility, including pinout, package footprint, and functional integration.

Frequently Asked Questions (FAQ)

Q: Are the ATSAMA5D24B-CU and ATSAMA5D24C-CU pin-compatible?

A: Yes. Both parts use the 256-TFBGA (8x8) package with identical pinout and electrical specifications. Direct PCB-level substitution is supported without layout modification.

Q: What is the difference between the ATSAMA5D24B-CU and ATSAMA5D24C-CU?

A: The parts are functionally equivalent. The primary difference is product lifecycle status: ATSAMA5D24B-CU is obsolete, while ATSAMA5D24C-CU is in active production. Both support identical processor architecture, memory controllers, peripherals, and security features.

Q: Can I use the ATSAMA5D24C-CU as a direct replacement in existing designs?

A: Yes. The ATSAMA5D24C-CU provides complete functional equivalence to the ATSAMA5D24B-CU across all specified parameters. No design changes are required for substitution.

Q: Are there any differences in operating temperature or voltage specifications?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and I/O voltage specification (3.3V).

Q: Do both parts support the same memory controller configurations?

A: Yes. Both the ATSAMA5D24B-CU and ATSAMA5D24C-CU support LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, and QSPI memory controllers without distinction.

Q: Are the security features identical between these parts?

A: Yes. Both parts implement the complete SAMA5D2 security architecture, including ARM TrustZone, boot security, cryptography, RTIC, secure fusebox, secure JTAG, secure memory, and secure RTC functionality.

Q: What is the packaging difference between these parts?

A: The ATSAMA5D24B-CU is supplied in standard packaging, while the ATSAMA5D24C-CU is supplied in tray packaging. Both use the 256-TFBGA (8x8) package format with identical electrical and mechanical specifications.