ATSAMA5D26B-CNR Equivalent & Substitute Parts

Part Overview

The ATSAMA5D26B-CNR 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 part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The SAMA5D2 series provides multimedia processing capabilities, integrated graphics acceleration, and comprehensive security features suitable for embedded applications requiring ARM-based processing.

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 ~ 105°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

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

Processor Architecture: ARM Cortex-A5 core with identical instruction set
Clock Speed: 500MHz operation
Package Format: 289-LFBGA (14x14) ball grid array
I/O Voltage: 3.3V supply
Temperature Range: -40°C to 105°C operating specification
Peripheral Set: Identical RAM controllers (LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI), display controllers, Ethernet, USB, and security features
Compliance: ROHS3 and REACH compliance maintained

The ATSAMA5D26C-CNR and ATSAMA5D26A-CNR meet all electrical and mechanical substitution criteria. The primary distinction is product status: ATSAMA5D26B-CNR is obsolete, while both substitute parts are active.

Parameter Comparison

Parameter	ATSAMA5D26B-CNR	ATSAMA5D26C-CNR	ATSAMA5D26A-CNR
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology
Series	SAMA5D2	SAMA5D2	SAMA5D2
Core Processor	ARM Cortex-A5	ARM Cortex-A5	ARM Cortex-A5
Cores / Bus Width	1 Core, 32-Bit	1 Core, 32-Bit	1 Core, 32-Bit
Speed	500MHz	500MHz	500MHz
Package / Case	289-LFBGA (14x14)	289-LFBGA (14x14)	289-LFBGA (14x14)
Voltage - I/O	3.3V	3.3V	3.3V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
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
Additional Interfaces	I2C, SMC, SPI, UART, USART, QSPI	I2C, SMC, SPI, UART, USART, QSPI	I2C, SMC, SPI, UART, USART, QSPI
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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

Both ATSAMA5D26C-CNR and ATSAMA5D26A-CNR are direct functional equivalents to the obsolete ATSAMA5D26B-CNR. Selection between these two active alternatives should be based on:

ATSAMA5D26C-CNR: Packaged in Tape & Reel (TR) format with 2005 units in stock. This variant is suitable for high-volume production environments where automated assembly processes are employed.

ATSAMA5D26A-CNR: Standard packaging with 803 units in stock. This variant is suitable for applications where standard packaging is preferred or where automated reel handling is not required.

Both parts maintain identical electrical specifications, thermal performance, security architecture, and compliance certifications. The choice between them is determined by packaging requirements and supply availability rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Are ATSAMA5D26C-CNR and ATSAMA5D26A-CNR pin-compatible with ATSAMA5D26B-CNR?

A: Yes. All three parts use the 289-LFBGA (14x14) package format with identical pinout, electrical characteristics, and functional specifications.

Q: What is the difference between the three part numbers?

A: The primary difference is product status. ATSAMA5D26B-CNR is obsolete. ATSAMA5D26C-CNR and ATSAMA5D26A-CNR are active production parts. ATSAMA5D26C-CNR is supplied in Tape & Reel packaging, while ATSAMA5D26A-CNR uses standard packaging.

Q: Can I use either substitute part in a design currently using ATSAMA5D26B-CNR?

A: Yes. Both substitute parts are electrically and mechanically equivalent. No design modifications are required for direct substitution.

Q: Are there any thermal or performance differences between these parts?

A: No. All three parts operate at 500MHz with identical thermal specifications (-40°C to 105°C operating range) and performance characteristics.

Q: Which substitute should I select for new production?

A: ATSAMA5D26C-CNR is recommended for high-volume automated assembly. ATSAMA5D26A-CNR is suitable for standard production environments. Both are active parts with adequate inventory.

Q: Do the substitute parts maintain the same security features?

A: Yes. ATSAMA5D26C-CNR and ATSAMA5D26A-CNR include identical security features: ARM TrustZone, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, and Secure RTC.

Q: Are compliance certifications identical across all three parts?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and maintain identical moisture sensitivity levels (MSL 3, 168 hours).

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