ATSAMA5D22B-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D22B-CU is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D2 series, operating at 500MHz with 32-bit architecture in a 196-TFBGA 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 support.

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 Type	196-TFBGA (11x11)
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 ATSAMA5D22B-CU is determined by strict alignment across the following critical parameters:

Processor Architecture: ARM Cortex-A5 core with identical instruction set
Clock Speed: 500MHz operation
Package Configuration: 196-TFBGA (11x11) form factor
I/O Voltage: 3.3V supply
Temperature Range: -40°C to 85°C operating window
Peripheral Integration: Identical RAM controllers (LPDDR1, LPDDR2, LPDDR3, DDR2, DDR3, DDR3L, QSPI), display controllers, Ethernet (10/100Mbps), USB 2.0 + HSIC, and interface protocols (I2C, SMC, SPI, UART, USART, QSPI)
Security Features: ARM TrustZone, Boot Security, Cryptography, RTIC, Secure Fusebox, Secure JTAG, Secure Memory, Secure RTC
Compliance: ROHS3 compliance and identical MSL rating

The identified substitutes maintain full electrical and functional equivalence within the SAMA5D2 product line, differing only in product lifecycle status and packaging configuration.

Parameter Comparison

Parameter	ATSAMA5D22B-CU (Main)	ATSAMA5D22C-CU (Substitute)	ATSAMA5D23A-CUR (Substitute)
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 Type	196-TFBGA (11x11)	196-TFBGA (11x11)	196-TFBGA (11x11)
Voltage - I/O	3.3V	3.3V	3.3V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°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
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
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

The ATSAMA5D22B-CU is classified as obsolete. For new designs and production continuity, ATSAMA5D22C-CU and ATSAMA5D23A-CUR are functionally equivalent active alternatives within the SAMA5D2 series.

ATSAMA5D22C-CU is the direct successor, maintaining identical electrical specifications and peripheral integration. This part is supplied in Tray packaging and carries Active product status, ensuring long-term availability and manufacturing support.

ATSAMA5D23A-CUR is the manufacturer-recommended alternative, also maintaining full functional equivalence with Active product status. This part is designated as the preferred long-term solution by Microchip Technology.

Both substitutes comply with ROHS3 regulations and carry identical MSL ratings, supporting equivalent handling and storage requirements. Selection between the two active alternatives should be based on packaging requirements (Tray for ATSAMA5D22C-CU) and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can ATSAMA5D22C-CU and ATSAMA5D23A-CUR be used interchangeably with ATSAMA5D22B-CU?

A: Yes. Both parts maintain identical core processor architecture, clock speed, package configuration, I/O voltage, operating temperature range, peripheral integration, and security features. No circuit redesign is required for substitution.

Q: What is the primary difference between the substitute parts?

A: The ATSAMA5D22C-CU differs in packaging configuration (Tray) and product status (Active). The ATSAMA5D23A-CUR is designated as the manufacturer-recommended alternative. Both are electrically and functionally equivalent to the obsolete ATSAMA5D22B-CU.

Q: Are there any compatibility concerns with existing PCB designs?

A: No. All three parts use the identical 196-TFBGA (11x11) package footprint, 3.3V I/O voltage, and surface mount configuration. PCB layouts and designs require no modification.

Q: What compliance certifications apply to the substitute parts?

A: Both ATSAMA5D22C-CU and ATSAMA5D23A-CUR are ROHS3 compliant with MSL rating 3 (168 Hours), matching the original part's compliance profile.

Q: Why is the original ATSAMA5D22B-CU classified as obsolete?

A: Product lifecycle management by Microchip Technology has transitioned this part to obsolete status. Active alternatives within the SAMA5D2 series provide equivalent functionality for ongoing production and new designs.

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