ATSAMA5D26B-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D26B-CU is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D2 series, operating at 500MHz with 32-bit architecture in a 289-LFBGA package. This embedded processor integrates multimedia co-processing, graphics acceleration, and comprehensive security features including ARM TrustZone, cryptography, and secure memory. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Series	SAMA5D2
Core Processor	ARM Cortex-A5
Number of Cores/Bus Width	1 Core, 32-Bit
Speed	500MHz
Package / Case	289-LFBGA (14x14)
Voltage - I/O	3.3V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAMA5D26B-CU is determined by strict equivalence across the following critical parameters:

Processor Architecture: ARM Cortex-A5 core with identical instruction set
Clock Frequency: 500MHz operation
Package Geometry: 289-LFBGA (14x14) form factor
I/O Voltage: 3.3V supply compatibility
Temperature Range: -40°C to 85°C operational envelope
Interface Set: Identical peripheral controllers (I2C, SPI, UART, USART, QSPI, SMC)
Memory Controllers: Support for LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI
Security Features: ARM TrustZone, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC
Compliance: ROHS3 and REACH compliance maintained

The ATSAMA5D26B-CU differs from active alternatives only in product status and packaging configuration. All electrical and functional specifications remain identical across the SAMA5D2 variant group.

Parameter Comparison

Parameter	ATSAMA5D26B-CU (Main)	ATSAMA5D26C-CU (Direct)	ATSAMA5D26A-CU (MFR Recommended)
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology
Series	SAMA5D2	SAMA5D2	SAMA5D2
Core Processor	ARM Cortex-A5	ARM Cortex-A5	ARM Cortex-A5
Number of Cores/Bus Width	1 Core, 32-Bit	1 Core, 32-Bit	1 Core, 32-Bit
Speed	500MHz	500MHz	500MHz
Co-Processors/DSP	Multimedia, NEON™ MPE	Multimedia, NEON™ MPE	Multimedia, NEON™ MPE
RAM Controllers	LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI	LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI	LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI
Graphics Acceleration	Yes	Yes	Yes
Display & Interface Controllers	Keyboard, LCD, Touchscreen	Keyboard, LCD, Touchscreen	Keyboard, LCD, Touchscreen
Ethernet	10/100Mbps (1)	10/100Mbps (1)	10/100Mbps (1)
USB	USB 2.0 + HSIC	USB 2.0 + HSIC	USB 2.0 + HSIC
Voltage - I/O	3.3V	3.3V	3.3V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Security Features	ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC	ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC	ARM TZ, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	289-LFBGA (14x14)	289-LFBGA (14x14)	289-LFBGA (14x14)
Additional Interfaces	I2C, SMC, SPI, UART, USART, QSPI	I2C, SMC, SPI, UART, USART, QSPI	I2C, SMC, SPI, UART, USART, QSPI
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active	Active
Packaging Configuration	Bulk	Tray	Bulk

Engineering Selection Recommendations

The ATSAMA5D26B-CU is classified as obsolete. For new designs and production continuity, selection between active alternatives is based on product status and packaging requirements:

ATSAMA5D26C-CU is the direct substitute, offering identical electrical and functional specifications with active product status. This part is supplied in tray packaging, suitable for automated assembly processes.

ATSAMA5D26A-CU is the manufacturer-recommended alternative, maintaining full functional equivalence with active product status. This part is supplied in bulk packaging.

Both substitutes maintain complete compliance with ROHS3 and REACH regulations. Selection between ATSAMA5D26C-CU and ATSAMA5D26A-CU depends on packaging and supply chain requirements, as all electrical parameters, thermal characteristics, security features, and interface specifications are identical to the obsolete ATSAMA5D26B-CU.

Frequently Asked Questions (FAQ)

Q: Can ATSAMA5D26C-CU and ATSAMA5D26A-CU be used interchangeably with ATSAMA5D26B-CU?

A: Yes. All three parts share identical core processor architecture, clock frequency, package geometry, I/O voltage, operating temperature range, peripheral interfaces, memory controllers, and security features. The only differences are product status and packaging configuration.

Q: What is the difference between the substitute parts?

A: ATSAMA5D26C-CU is supplied in tray packaging, while ATSAMA5D26A-CU is supplied in bulk packaging. Electrical and functional specifications are identical.

Q: Are there any pin compatibility concerns?

A: No. All three parts use the 289-LFBGA (14x14) package with identical pinout and signal assignments.

Q: Do the substitute parts support the same memory types?

A: Yes. Both substitutes support LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, and QSPI memory controllers identically to the ATSAMA5D26B-CU.

Q: Are security features identical across all three parts?

A: Yes. ARM TrustZone, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, and Secure RTC are implemented identically in all three variants.

Q: What is the moisture sensitivity level for these parts?

A: All three parts carry MSL rating 3 with a 168-hour floor life requirement.

Q: Are there compliance differences between the parts?

A: No. All three parts are ROHS3 compliant and REACH unaffected.

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