GAL16V8D-7LP Equivalent & Substitute Parts

Part Overview

The GAL16V8D-7LP is a GAL®16V8 Programmable Logic Device (PLD) IC manufactured by Lattice Semiconductor Corporation, featuring 8 macrocells with 7.5 ns propagation delay in a 20-PDIP package. This device is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The GAL16V8D-7LP operates as an electrically erasable PLD suitable for embedded logic applications requiring through-hole mounting.

Substiute Parts

GAL16V8D-7LP

Lattice Semiconductor CorporationIn Stock: 3055GAL16V8D-7LP Datasheet

Current PartRFQ

ATF16V8B-15PU

Microchip TechnologyIn Stock: 24249ATF16V8B-15PU Datasheet

MFR RecommendedRFQ

ATF16V8BQL-15PU

Microchip TechnologyIn Stock: 3121ATF16V8BQL-15PU Datasheet

MFR RecommendedRFQ

ATF16V8CZ-15PU

Microchip TechnologyIn Stock: 1430ATF16V8CZ-15PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GAL16V8D-7LP are qualified based on the following electrical and mechanical parameters:

• Macrocell Count: 8 macrocells (functional equivalence)
• Programmable Type: EE PLD (electrically erasable)
• Package: 20-DIP (0.300", 7.62mm) form factor
• Mounting Type: Through Hole
• Moisture Sensitivity Level: 1 (Unlimited)
• Series Compatibility: 16V8 architecture

The three substitute parts listed—ATF16V8B-15PU, ATF16V8BQL-15PU, and ATF16V8CZ-15PU—all meet these criteria. These Microchip Technology devices maintain functional and physical compatibility with the GAL16V8D-7LP while offering active product status and verified programmability.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—ATF16V8B-15PU, ATF16V8BQL-15PU, and ATF16V8CZ-15PU—are manufactured by Microchip Technology and carry active product status, ensuring long-term availability and supply chain continuity. Each substitute maintains the 8-macrocell architecture and 20-DIP through-hole package required for direct replacement.

The substitute parts operate at 15 ns propagation delay, which is slower than the original GAL16V8D-7LP at 7.5 ns. This timing difference must be evaluated against circuit timing requirements. All substitutes are ROHS3 compliant and carry unlimited moisture sensitivity rating, meeting modern environmental and regulatory standards.

Selection among the three substitutes should be based on inventory availability and specific application requirements, as all three are functionally equivalent within the stated parameters.

Frequently Asked Questions (FAQ)

Q: Can ATF16V8B-15PU, ATF16V8BQL-15PU, and ATF16V8CZ-15PU be used interchangeably with GAL16V8D-7LP?

A: Yes, within the scope of the specified electrical and mechanical parameters. All three substitutes maintain the same 8-macrocell count, EE PLD programmable type, 20-DIP package, and through-hole mounting. The primary difference is propagation delay: substitutes operate at 15 ns versus the original 7.5 ns. Circuit timing analysis is required to confirm compatibility.

Q: What is the significance of the speed difference between 7.5 ns and 15 ns?

A: Speed specification indicates maximum propagation delay through the logic device. The substitute parts at 15 ns are slower than the original. Applications with tight timing constraints must verify that the slower speed does not violate system timing requirements.

Q: Are the substitute parts pin-compatible with the GAL16V8D-7LP?

A: Yes. All parts use the 20-DIP (0.300", 7.62mm) package with identical through-hole mounting, ensuring mechanical and electrical pin compatibility.

Q: What does "EE PLD" mean?

A: EE PLD refers to Electrically Erasable Programmable Logic Device. This designation indicates the device can be electrically programmed and erased, allowing field reprogramming without specialized equipment.

Q: Why is the GAL16V8D-7LP listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The substitute parts from Microchip Technology are active products, providing continued availability for equivalent functionality.

Q: Do the substitute parts meet current compliance standards?

A: Yes. All three substitutes are ROHS3 compliant and carry REACH Unaffected status, meeting current environmental and regulatory requirements.