LC5512MB-75F256C Equivalent & Substitute Parts

Part Overview

The LC5512MB-75F256C is a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor Corporation's ispXPLD® 5000MB series. This embedded integrated circuit features 512 macrocells, 193 I/O pins, and a propagation delay of 7.5 ns in a 256-pin BGA package. The device is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

LC5512MB-75F256C

Lattice Semiconductor CorporationIn Stock: 1352LC5512MB-75F256C Datasheet

Current PartRFQ

LCMXO2-1200UHC-4FTG256I

Lattice Semiconductor CorporationIn Stock: 5960LCMXO2-1200UHC-4FTG256I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LC5512MB-75F256C is determined by the following critical parameters:

• Package Compatibility: Both devices must use 256-pin BGA packaging (17x17 footprint) to ensure PCB-level compatibility
• I/O Pin Count: The substitute must provide a minimum of 193 I/O pins to maintain signal routing equivalence
• Logic Capacity: The substitute must provide sufficient logic elements or macrocells to accommodate the original design
• Voltage Supply Range: The substitute must operate within or encompass the 2.3V ~ 2.7V internal supply specification
• Operating Temperature Range: The substitute must support the 0°C ~ 90°C operating window
• Programmable Type: Both devices must support In System Programmable (ISP) functionality
• Manufacturer Continuity: Lattice Semiconductor Corporation maintains design compatibility across its programmable logic product lines

The LCMXO2-1200UHC-4FTG256I qualifies as a substitute based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

The LCMXO2-1200UHC-4FTG256I is the designated substitute for the obsolete LC5512MB-75F256C based on the following engineering criteria:

• Product Status Alignment: The substitute is in active production status, ensuring long-term availability and supply chain continuity
• Package Footprint Compatibility: Both devices utilize 256-pin BGA packages with identical 17x17 footprint dimensions, enabling direct PCB layout compatibility
• I/O Pin Sufficiency: The substitute provides 206 I/O pins, exceeding the original 193 I/O requirement
• Logic Capacity: The substitute features 1280 logic elements and 75776 RAM bits, providing substantially greater design flexibility than the original 512 macrocells
• Voltage Supply Compatibility: The substitute's 2.375V ~ 3.465V supply range encompasses the original 2.3V ~ 2.7V specification
• Operating Temperature Coverage: The substitute's -40°C ~ 100°C range extends beyond the original 0°C ~ 90°C specification
• Compliance Status: The substitute achieves ROHS3 compliance, addressing regulatory requirements not met by the obsolete original device
• Programmable Functionality: Both devices support In System Programmable operation, maintaining design methodology consistency

Frequently Asked Questions (FAQ)

Q: Can the LCMXO2-1200UHC-4FTG256I be used as a direct replacement for the LC5512MB-75F256C?

A: Yes, the LCMXO2-1200UHC-4FTG256I is compatible as a substitute. Both devices share the same 256-pin BGA package footprint (17x17), support In System Programmable functionality, and operate within overlapping voltage and temperature specifications. The substitute provides additional I/O pins (206 vs. 193) and greater logic capacity, which accommodates the original design requirements.

Q: Are there any package differences between these devices?

A: Both devices use 256-pin BGA packages with identical 17x17 footprint dimensions. The original uses 256-FPBGA packaging, while the substitute uses 256-FTBGA packaging. These designations reflect different ball grid array specifications but maintain mechanical and electrical compatibility for PCB mounting.

Q: What is the voltage supply difference, and does it affect compatibility?

A: The original device operates at 2.3V ~ 2.7V internal supply, while the substitute operates at 2.375V ~ 3.465V. The substitute's range encompasses the original specification, ensuring compatibility with existing power supply designs. System-level voltage regulation must be verified to confirm operation within the substitute's specified range.

Q: Does the substitute support the same programming methodology?

A: Yes, both devices support In System Programmable (ISP) operation. Design files and programming procedures developed for the LC5512MB-75F256C are compatible with the LCMXO2-1200UHC-4FTG256I, subject to verification of device-specific programming tool support.

Q: What are the compliance differences?

A: The original LC5512MB-75F256C is RoHS non-compliant, while the substitute LCMXO2-1200UHC-4FTG256I is ROHS3 compliant. Both devices maintain identical Moisture Sensitivity Level (MSL 3, 168 Hours) and REACH unaffected status. The substitute's improved compliance status supports modern procurement and environmental requirements.

Q: Are there differences in operating temperature ranges?

A: The original device operates from 0°C ~ 90°C, while the substitute operates from -40°C ~ 100°C. The substitute's extended range provides greater thermal margin and supports applications requiring wider temperature operation. Existing designs operating within the original 0°C ~ 90°C window remain fully compatible.