SPC5644CF0CLU8 Equivalent & Substitute Parts

Part Overview

The SPC5644CF0CLU8 is a 32-bit dual-core microcontroller from NXP USA Inc.'s MPC56xx Qorivva series, featuring 1.5MB FLASH memory and operating at 80MHz/120MHz. This device is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for legacy system maintenance, production continuity, and long-term supply chain planning when original inventory becomes unavailable.

Substiute Parts

SPC5644CF0CLU8

NXP USA Inc.In Stock: 830SPC5644CF0CLU8 Datasheet

Current PartRFQ

SPC564A80L7CFBY

STMicroelectronicsIn Stock: 1180SPC564A80L7CFBY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPC5644CF0CLU8 is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 176-LQFP (24x24) surface mount package to ensure mechanical and electrical pin compatibility.

Core Architecture: The substitute must support the e200z4 processor family, maintaining instruction set compatibility and software portability.

Memory Configuration: While the substitute may have different FLASH and EEPROM sizes, the RAM size of 192K x 8 is a baseline requirement for application memory space.

Voltage Supply Range: The substitute must operate within or encompass the 3V ~ 5.5V supply range to ensure compatibility with existing power delivery systems.

Connectivity Interfaces: The substitute must include CANbus, LINbus, SCI, and SPI interfaces as minimum requirements for automotive and industrial applications.

Compliance Standards: RoHS3 compliance and equivalent environmental certifications are mandatory for production continuity.

The SPC564A80L7CFBY qualifies as a substitute based on these parameters, though with noted differences in core configuration and memory capacity.

Parameter Comparison

Engineering Selection Recommendations

The SPC564A80L7CFBY is an active product with current manufacturing support, making it suitable for applications requiring long-term component availability. The substitute offers increased FLASH memory (4MB versus 1.5MB), which provides additional program storage capacity for complex applications.

Key considerations for selection:

Voltage Supply Differential: The substitute operates at 1.14V ~ 1.32V, significantly lower than the main part's 3V ~ 5.5V range. This requires power supply redesign and is a critical constraint for direct substitution in existing systems.

Core Architecture Change: The shift from dual-core to single-core configuration may impact real-time performance in applications requiring parallel processing. Software validation is necessary to confirm functional equivalence.

Automotive Qualification: The substitute carries AEC-Q100 qualification and automotive-grade designation, providing enhanced reliability assurance for automotive and safety-critical applications.

Temperature Operating Range: The extended upper temperature limit (-40°C ~ 125°C) offers improved thermal margin for high-temperature environments compared to the main part's -40°C ~ 85°C range.

I/O Pin Count Reduction: The substitute provides 118 I/O pins versus 147 on the main part. Application designs must verify that all required I/O functions can be accommodated within this reduced pin count.

Frequently Asked Questions (FAQ)

Q: Can the SPC564A80L7CFBY be used as a direct drop-in replacement for the SPC5644CF0CLU8?

A: No. While both devices use the 176-LQFP (24x24) package, the voltage supply range difference (1.14V ~ 1.32V versus 3V ~ 5.5V) requires power supply circuit modifications. Additionally, the reduction from 147 to 118 I/O pins and the shift from dual-core to single-core architecture necessitate design validation.

Q: What are the primary electrical differences between these parts?

A: The main electrical differences are voltage supply range, core configuration (dual-core versus single-core), and I/O pin count. The substitute offers higher FLASH memory capacity (4MB versus 1.5MB) and extended operating temperature range.

Q: Is the SPC564A80L7CFBY suitable for automotive applications?

A: Yes. The substitute carries AEC-Q100 qualification and automotive-grade designation, making it appropriate for automotive applications. The main part does not specify automotive qualification.

Q: How do the connectivity interfaces compare?

A: Both parts support CANbus, LINbus, SCI, and SPI interfaces. The main part includes Ethernet and I2C, while the substitute includes EBI/EMI. Application requirements determine which interface set is necessary.

Q: What is the impact of the core configuration change from dual-core to single-core?

A: Applications relying on dual-core parallel processing capabilities must be re-evaluated. Single-core operation may affect real-time performance and task scheduling. Software validation is required to confirm functional equivalence.

Q: Are both parts RoHS compliant?

A: Yes. Both the SPC5644CF0CLU8 and SPC564A80L7CFBY are ROHS3 compliant and REACH unaffected.