ATSAMA5D43A-CU Equivalent & Substitute Parts

Part Overview

The ATSAMA5D43A-CU is an ARM Cortex-A5 microprocessor from Microchip Technology's SAMA5D4 series, featuring a single 32-bit core operating at 600MHz with integrated multimedia and NEON SIMD co-processors. This 289-LFBGA package device includes graphics acceleration, LCD/touchscreen controllers, 10/100Mbps Ethernet, USB 2.0 interfaces, and comprehensive security features including AES, SHA, TDES, and TRNG. The ATSAMA5D43A-CU is currently classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production and support requirements.

Substiute Parts

ATSAMA5D43A-CU

Microchip TechnologyIn Stock: 2247ATSAMA5D43A-CU Datasheet

Current PartRFQ

ATSAMA5D43B-CU

Microchip TechnologyIn Stock: 986ATSAMA5D43B-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATSAMA5D43B-CU qualifies as a direct substitute for the ATSAMA5D43A-CU based on strict parameter equivalence. Both devices share identical electrical specifications across all critical functional parameters: ARM Cortex-A5 core architecture, 600MHz clock speed, 32-bit bus width, multimedia and NEON SIMD co-processors, identical RAM controller support (LPDDR, LPDDR2, DDR2), graphics acceleration capability, LCD and touchscreen interface controllers, 10/100Mbps Ethernet connectivity, three USB 2.0 ports, I/O voltage levels (1.2V, 1.8V, 3.3V), operating temperature range (-40°C to 85°C), and security feature set (AES, SHA, TDES, TRNG). Both devices utilize the same 289-LFBGA package with identical pinout and mechanical dimensions. Interface support including EBI, I2C, MMC/SD/SDIO, SPI, SSC, UART, and USART is identical. Compliance certifications match: ROHS3 compliant, MSL 3 (168 Hours), REACH unaffected, and identical ECCN and HTSUS classifications.

Parameter Comparison

Engineering Selection Recommendations

The ATSAMA5D43B-CU is the direct substitute for the obsolete ATSAMA5D43A-CU. Selection of the ATSAMA5D43B-CU is supported by its active product status with Microchip Technology, ensuring ongoing availability and manufacturing support. Both devices maintain identical ROHS3 compliance, REACH unaffected status, and export classification (ECCN 5A992C, HTSUS 8542.31.0001). The ATSAMA5D43B-CU is available in tray packaging, whereas the original part number does not specify packaging format. All electrical, mechanical, and functional parameters are equivalent, permitting direct substitution in existing designs without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the ATSAMA5D43B-CU replace the ATSAMA5D43A-CU in existing designs?

A: Yes. The ATSAMA5D43B-CU is a direct substitute. All core processor specifications, clock speed, memory controllers, interface controllers, security features, I/O voltage levels, operating temperature range, and package dimensions are identical. No design changes are required.

Q: What is the difference between ATSAMA5D43A-CU and ATSAMA5D43B-CU?

A: The primary difference is product status. The ATSAMA5D43A-CU is obsolete, while the ATSAMA5D43B-CU is active. The ATSAMA5D43B-CU is available in tray packaging. All functional and electrical parameters are equivalent.

Q: Are the pinouts identical between these two parts?

A: Yes. Both devices use the 289-LFBGA (14x14) package with identical pinout and mechanical dimensions. PCB layout and footprint remain unchanged.

Q: Do both parts support the same interfaces and protocols?

A: Yes. Both the ATSAMA5D43A-CU and ATSAMA5D43B-CU support identical interfaces: EBI, I2C, MMC/SD/SDIO, SPI, SSC, UART, USART, LCD, touchscreen controllers, 10/100Mbps Ethernet, and three USB 2.0 ports.

Q: Are compliance certifications the same?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, with MSL 3 (168 Hours) moisture sensitivity level. Export classifications (ECCN 5A992C, HTSUS 8542.31.0001) are identical.

Q: What is the operating temperature range for both parts?

A: Both devices operate across -40°C to 85°C (TA). This specification is identical for both the ATSAMA5D43A-CU and ATSAMA5D43B-CU.