LC5512MB-45FN256C Equivalent & Substitute Parts

Part Overview

The LC5512MB-45FN256C is a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor Corporation's ispXPLD® 5000MB series. This device integrates 512 macrocells with a propagation delay of 4.5 ns, housed in a 256-pin BGA package. The part is classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design implementations.

Substiute Parts

LC5512MB-45FN256C

Lattice Semiconductor CorporationIn Stock: 723LC5512MB-45FN256C Datasheet

Current PartRFQ

LCMXO2-1200UHC-6FTG256I

Lattice Semiconductor CorporationIn Stock: 1141LCMXO2-1200UHC-6FTG256I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LCMXO2-1200UHC-6FTG256I qualifies as a substitute based on the following alignment criteria:

Package Compatibility: Both devices utilize a 256-pin BGA package in 17x17 form factor, ensuring mechanical and electrical socket compatibility.

I/O Count: The substitute provides 206 I/O pins, exceeding the original part's 193 I/O requirement, maintaining functional coverage for signal routing.

Programmable Architecture: Both devices support in-system programmability, enabling field configuration and reconfiguration without removal from the circuit board.

Voltage Supply Range: The substitute operates at 2.375V ~ 3.465V, which encompasses the original part's 2.3V ~ 2.7V range, ensuring power supply compatibility.

Surface Mount Technology: Both parts employ surface mount packaging, maintaining assembly process consistency.

Moisture Sensitivity: Identical MSL rating of 3 (168 Hours) ensures equivalent handling and storage requirements.

Regulatory Compliance: Both parts maintain REACH Unaffected status, satisfying environmental regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The LC5512MB-45FN256C is classified as obsolete, necessitating substitution for new procurement and long-term system support. The LCMXO2-1200UHC-6FTG256I is an active product from the same manufacturer, ensuring continued availability and technical support.

The substitute device maintains identical package geometry and MSL rating, reducing redesign complexity. The expanded operating temperature range (-40°C ~ 100°C versus 0°C ~ 90°C) provides enhanced thermal margin for applications requiring extended environmental performance. The substitute's ROHS3 compliance status addresses modern regulatory requirements not specified for the original part.

The increased I/O count (206 versus 193) and expanded voltage supply range provide design flexibility without introducing compatibility constraints. Both devices employ in-system programmability, preserving firmware deployment methodologies.

Frequently Asked Questions (FAQ)

Q: Can the LCMXO2-1200UHC-6FTG256I directly replace the LC5512MB-45FN256C in existing designs?

A: Yes, from a package and electrical interface perspective. Both devices use identical 256-pin BGA (17x17) packaging. The substitute's expanded I/O count and voltage supply range do not create incompatibility. However, design verification is necessary to confirm functional equivalence for specific application requirements.

Q: What is the significance of the obsolete status for the LC5512MB-45FN256C?

A: Obsolete status indicates the manufacturer has discontinued production and support. New designs should transition to active alternatives. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.

Q: Are the moisture sensitivity levels identical between these devices?

A: Yes. Both devices carry MSL rating 3 (168 Hours), requiring identical handling, storage, and reflow procedures. No changes to assembly processes are necessary.

Q: How do the operating temperature ranges differ?

A: The original part operates from 0°C to 90°C (TJ), while the substitute operates from -40°C to 100°C (TJ). The substitute provides a wider thermal envelope, beneficial for applications in extreme environments or with stringent thermal margins.

Q: What does the expanded I/O count mean for system design?

A: The substitute provides 206 I/O pins compared to the original 193. This additional I/O capacity does not create incompatibility; unused pins remain unconnected. Designs utilizing all 193 original I/O pins will function identically with the substitute.

Q: Is regulatory compliance equivalent between these parts?

A: Both maintain REACH Unaffected status. The substitute additionally carries ROHS3 compliance, meeting current environmental regulations. This represents an improvement in regulatory alignment for modern applications.