LS1043ASE7PQA Equivalent & Substitute Parts

Part Overview

The LS1043ASE7PQA is an ARM Cortex-A53 Microprocessor IC from NXP USA Inc. in the QorIQ Layerscape series. This 4-core, 64-bit processor operates at 1.4GHz and is housed in a 621-FCPBGA (21x21) package. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing system design and procurement.

Substiute Parts

LS1043ASE7PQA

NXP USA Inc.In Stock: 2548LS1043ASE7PQA Datasheet

Current PartRFQ

LS1043ASE7PQB

NXP USA Inc.In Stock: 1119LS1043ASE7PQB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LS1043ASE7PQA is determined by strict equivalence across the following critical parameters:

• Core processor architecture and instruction set (ARM Cortex-A53)
• Number of cores and bus width (4 Core, 64-Bit)
• Operating frequency (1.4GHz)
• Memory controller support (DDR3L, DDR4)
• Peripheral interface configuration (Ethernet, SATA, USB 3.0)
• Operating temperature range (0°C ~ 105°C)
• Physical package specification (621-FCPBGA, 21x21mm)
• Regulatory compliance (ROHS3, REACH Unaffected)
• Moisture sensitivity classification (MSL 3)

The LS1043ASE7PQB meets all these criteria and is identified as a direct substitute. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The LS1043ASE7PQB is a direct functional equivalent to the LS1043ASE7PQA. Both parts maintain identical electrical specifications, core architecture, and peripheral configurations. The LS1043ASE7PQB is currently in active production status, whereas the LS1043ASE7PQA is discontinued. For new designs or replenishment procurement, the LS1043ASE7PQB is the appropriate selection. Both parts satisfy ROHS3 compliance and REACH regulatory requirements, with equivalent moisture sensitivity classification for handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can LS1043ASE7PQB replace LS1043ASE7PQA in existing designs?

A: Yes. Both parts are electrically and functionally identical across all specified parameters, including processor architecture, core count, operating frequency, memory controllers, and peripheral interfaces. The physical package dimensions and pinout are identical (621-FCPBGA, 21x21mm).

Q: What is the difference between LS1043ASE7PQA and LS1043ASE7PQB?

A: The primary differences are product status and packaging format. LS1043ASE7PQA is discontinued; LS1043ASE7PQB is active production. LS1043ASE7PQB is supplied in Tray packaging, while LS1043ASE7PQA uses standard packaging.

Q: Are there any thermal or operating condition differences?

A: No. Both parts operate across the identical temperature range of 0°C to 105°C and maintain equivalent thermal and electrical performance characteristics.

Q: Do both parts require the same PCB layout and design considerations?

A: Yes. Identical package specifications (621-FCPBGA, 21x21mm), pinout, and electrical characteristics mean both parts require identical PCB layout, routing, and design implementation.

Q: Are storage and handling requirements the same?

A: Yes. Both parts carry MSL 3 (168 Hours) moisture sensitivity classification, requiring identical storage conditions and handling protocols.