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SPC5643LF0MLQ8 Equivalent & Substitute Parts
Part Overview
The SPC5643LF0MLQ8 is a 32-bit dual-core embedded microcontroller from NXP USA Inc. in the MPC56xx Qorivva series. This device integrates an e200z4 processor core operating at 80MHz with 1MB flash memory and 128KB RAM in a 144-LQFP package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | SPC5643LF0MLQ8 |
|---|---|
| Manufacturer | NXP USA Inc. |
| Series | MPC56xx Qorivva |
| Core Processor | e200z4 |
| Core Architecture | 32-Bit Dual-Core |
| Operating Frequency | 80MHz |
| Program Memory | 1MB FLASH |
| RAM | 128K x 8 |
| Supply Voltage | 3V to 5.5V |
| Operating Temperature | -40°C to 125°C |
| Package | 144-LQFP (20x20) |
| Product Status | Obsolete |
| RoHS Compliance | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution for the SPC5643LF0MLQ8 is determined by the following critical parameters:
Package Compatibility: All substitute parts maintain the 144-LQFP (20x20) surface mount package, ensuring mechanical and electrical pin compatibility.
Memory Configuration: The primary substitutes retain 1MB flash memory and 128KB RAM, matching the original specification. One alternative (SPC564L70L5BBOSR and SPC564L70L5BBOSY) offers 2MB flash and 192KB RAM as an enhanced option.
Core Architecture: Substitute parts transition from the e200z4 to the e200z4d processor core, representing an evolutionary upgrade within the same processor family. Dual-core variants maintain functional equivalence with the original dual-core design.
Operating Frequency: Substitute parts operate at 120MHz, providing increased performance headroom compared to the original 80MHz specification.
Supply Voltage Range: Substitute parts operate within 3V to 3.63V, a subset of the original 3V to 5.5V range. This represents a tighter specification suitable for modern automotive-grade applications.
Operating Temperature: Most substitutes support -40°C to 105°C. Select variants (SPC56EL60L5CBFQR, SPC56EL60L5CBFQY, SPC56EL60L5CBFSR, SPC56EL60L5CBOSR) extend to -40°C to 125°C, matching the original temperature range.
Product Status & Qualification: All substitute parts are active production items with AEC-Q100 automotive qualification, providing long-term availability and reliability assurance.
Parameter Comparison
| Parameter | SPC5643LF0MLQ8 | SPC564L60L5BCOQR | SPC56EL60L5CCOSR | SPC564L70L5BBOSR | SPC56EL60L5CBFQR | SPC56EL60L5CBFQY | SPC56EL60L5CBFSR | SPC56EL60L5CBOSR |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core Processor | e200z4 | e200z4d | e200z4d | e200z4d | e200z4d | e200z4d | e200z4d | e200z4d |
| Core Architecture | 32-Bit Dual-Core | 32-Bit Single-Core | 32-Bit Dual-Core | 32-Bit Single-Core | 32-Bit Dual-Core | 32-Bit Dual-Core | 32-Bit Dual-Core | 32-Bit Dual-Core |
| Operating Frequency | 80MHz | 120MHz | 120MHz | 120MHz | 120MHz | 120MHz | 120MHz | 120MHz |
| Program Memory | 1MB FLASH | 1MB FLASH | 1MB FLASH | 2MB FLASH | 1MB FLASH | 1MB FLASH | 1MB FLASH | 1MB FLASH |
| RAM | 128K x 8 | 128K x 8 | 128K x 8 | 192K x 8 | 128K x 8 | 128K x 8 | 128K x 8 | 128K x 8 |
| Supply Voltage | 3V to 5.5V | 3V to 3.63V | 3V to 3.63V | 3V to 3.63V | 3V to 3.63V | 3V to 3.63V | 3V to 3.63V | 3V to 3.63V |
| Operating Temperature | -40°C to 125°C | -40°C to 105°C | -40°C to 125°C | -40°C to 105°C | -40°C to 105°C | -40°C to 105°C | -40°C to 125°C | -40°C to 125°C |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| Grade | Standard | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
| Qualification | Not specified | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| RoHS Compliance | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct Functional Replacement (Dual-Core, 1MB Flash, Extended Temperature):
SPC56EL60L5CBFQR, SPC56EL60L5CBFQY, SPC56EL60L5CBFSR, and SPC56EL60L5CBOSR provide the closest functional match. These parts maintain dual-core architecture, 1MB flash memory, and -40°C to 125°C operating temperature range. All are active production items with AEC-Q100 automotive qualification and ROHS3 compliance. The 120MHz operating frequency provides performance headroom over the original 80MHz specification.
For Single-Core Applications (1MB Flash):
SPC564L60L5BCOQR offers a single-core alternative with 1MB flash and 128KB RAM. This part operates at 120MHz and is qualified to -40°C to 105°C. Selection of this variant requires confirmation that single-core operation is functionally acceptable for the application.
For Enhanced Memory Capacity:
SPC564L70L5BBOSR and SPC564L70L5BBOSY provide 2MB flash and 192KB RAM, supporting applications requiring additional program or data storage. Both are single-core variants operating at 120MHz with -40°C to 105°C temperature range. These parts are suitable for memory-intensive applications where the original 1MB specification is insufficient.
Voltage Supply Consideration:
All substitute parts operate within 3V to 3.63V, which is narrower than the original 3V to 5.5V range. Design verification is required to confirm that the application power supply operates within this tighter specification. If the original design relies on 5V operation, additional voltage regulation or design modification may be necessary.
Frequently Asked Questions (FAQ)
Q: Can SPC564L60L5BCOQR directly replace SPC5643LF0MLQ8?
A: SPC564L60L5BCOQR is mechanically and electrically compatible in terms of package and pinout. However, it is a single-core variant compared to the dual-core original. Functional compatibility depends on whether the application requires dual-core operation. The 120MHz frequency and 1MB flash memory match the original specification.
Q: What is the key difference between SPC56EL60L5CBFQR and SPC564L60L5BCOQR?
A: SPC56EL60L5CBFQR is a dual-core device, while SPC564L60L5BCOQR is single-core. Both operate at 120MHz with 1MB flash and 128KB RAM. The dual-core variant is preferred for applications originally designed with dual-core functionality.
Q: Why do substitute parts have a narrower voltage range (3V to 3.63V) compared to the original (3V to 5.5V)?
A: The substitute parts are automotive-grade devices designed for modern vehicle electrical systems with tighter voltage regulation. The original part supported a broader range typical of industrial applications. Design verification is required to confirm compatibility with the application's power supply.
Q: Are all substitute parts automotive-qualified?
A: Yes. All substitute parts listed carry AEC-Q100 automotive qualification and are classified as automotive-grade devices. This qualification ensures reliability and long-term availability for automotive applications.
Q: What is the difference between packaging options (Tape & Reel vs. Tray)?
A: Tape & Reel (TR) packaging is standard for automated assembly lines, while Tray packaging is used for manual handling or lower-volume production. Both contain identical die and electrical specifications. Selection depends on manufacturing process requirements.
Q: Can I use SPC564L70L5BBOSR as a drop-in replacement?
A: SPC564L70L5BBOSR is mechanically compatible (144-LQFP package) but offers 2MB flash and 192KB RAM compared to the original 1MB and 128KB. It is a single-core variant. This part is suitable only if the application can utilize the additional memory and does not require dual-core operation.
Q: Which substitute part best matches the original operating temperature range?
A: SPC56EL60L5CBFQR, SPC56EL60L5CBFQY, SPC56EL60L5CBFSR, and SPC56EL60L5CBOSR all support -40°C to 125°C, matching the original specification. Other substitutes are limited to -40°C to 105°C.
Q: Are all substitute parts RoHS compliant?
A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to the original part.
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