ATSAMA5D26B-CUR Equivalent & Substitute Parts

Part Overview

The ATSAMA5D26B-CUR 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 listed as obsolete, necessitating identification of functionally equivalent alternatives from the active product portfolio.

Key Parameters

Parameter	Value
Manufacturer Part Number	ATSAMA5D26B-CUR
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the ATSAMA5D26B-CUR are identified based on strict electrical and mechanical parameter matching within the SAMA5D2 series. The substitution criteria are:

Core Architecture: ARM Cortex-A5, 1 Core, 32-Bit configuration
Operating Frequency: 500MHz
Package: 289-LFBGA (14x14) form factor
I/O Voltage: 3.3V
Temperature Range: -40°C ~ 85°C (TA)
Mounting Type: Surface Mount
Peripheral Set: Identical RAM controllers (LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI), display controllers, Ethernet, USB, and security features

All identified substitutes maintain full functional and pin compatibility with the original part while differing only in product status and packaging configuration.

Parameter Comparison

Parameter	ATSAMA5D26B-CUR	ATSAMA5D26C-CUR	ATSAMA5D26A-CUR
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
Package / Case	289-LFBGA (14x14)	289-LFBGA (14x14)	289-LFBGA (14x14)
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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
Packaging Configuration	Bulk	Tape & Reel (TR)	Bulk
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
Ethernet	10/100Mbps (1)	10/100Mbps (1)	10/100Mbps (1)
USB	USB 2.0 + HSIC	USB 2.0 + HSIC	USB 2.0 + HSIC
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 (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

ATSAMA5D26C-CUR is the primary substitute for ATSAMA5D26B-CUR. This part maintains identical electrical and mechanical specifications while offering active product status and Tape & Reel packaging configuration suitable for high-volume manufacturing environments. ROHS3 compliance and MSL rating are preserved.

ATSAMA5D26A-CUR serves as an alternative substitute with identical core specifications and active product status. This part is supplied in bulk packaging configuration, making it suitable for applications where Tape & Reel format is not required.

Both substitutes provide full functional compatibility with the obsolete ATSAMA5D26B-CUR across all peripheral interfaces, security features, and performance characteristics. Selection between ATSAMA5D26C-CUR and ATSAMA5D26A-CUR depends on procurement and assembly requirements rather than technical performance.

Frequently Asked Questions (FAQ)

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

A: Yes. All three parts use the 289-LFBGA (14x14) package with identical pinout. No PCB redesign is required for substitution.

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

A: The primary differences are product status and packaging configuration. ATSAMA5D26B-CUR is obsolete with bulk packaging. ATSAMA5D26C-CUR is active with Tape & Reel packaging. ATSAMA5D26A-CUR is active with bulk packaging. All three are electrically and mechanically identical.

Q: Can I use ATSAMA5D26C-CUR in place of ATSAMA5D26B-CUR in existing designs?

A: Yes. The parts are functionally equivalent across all electrical parameters, operating conditions, and peripheral interfaces. No design modifications are necessary.

Q: Are there any compliance or certification differences?

A: No. All three parts maintain identical ROHS3 compliance, REACH status, and MSL ratings. Security certifications and feature sets are identical.

Q: Which substitute should I select for new designs?

A: ATSAMA5D26C-CUR is recommended for new designs due to active product status and standard Tape & Reel packaging for manufacturing. ATSAMA5D26A-CUR is an alternative if bulk packaging is preferred.

Q: What is the operating temperature range for all substitutes?

A: All parts operate across -40°C to 85°C (TA), maintaining identical thermal specifications.

Q: Are the 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 present on all three variants.

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