ATF20V8BQL-15JC Equivalent & Substitute Parts

Part Overview

The ATF20V8BQL-15JC is a 20V8 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 8 macrocells with 15 ns speed performance in a 28-PLCC surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The obsolete status necessitates evaluation of active substitute components that maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

ATF20V8BQL-15JC

Microchip TechnologyIn Stock: 1173ATF20V8BQL-15JC Datasheet

Current PartRFQ

ATF22V10CQZ-20JU

Microchip TechnologyIn Stock: 1620ATF22V10CQZ-20JU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF20V8BQL-15JC is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 28-PLCC (11.51x11.51) surface mount packaging with 28-LCC (J-Lead) case designation to ensure PCB footprint compatibility.
• Voltage Specification: Input voltage of 5V is maintained across all qualified substitutes.
• Programmable Type: EE PLD (Electrically Erasable Programmable Logic Device) technology must be preserved.
• Manufacturer Continuity: Microchip Technology maintains the ATF series PLD product line, ensuring design consistency and documentation availability.

The ATF22V10CQZ-20JU qualifies as a manufacturer-recommended substitute based on these parameters. While the substitute features increased macrocell count (10 vs. 8) and slightly reduced speed performance (20 ns vs. 15 ns), these represent functional enhancements and remain within acceptable operating margins for most applications utilizing the original ATF20V8BQL-15JC.

Parameter Comparison

Engineering Selection Recommendations

The ATF22V10CQZ-20JU is the manufacturer-recommended substitute for the obsolete ATF20V8BQL-15JC. Selection of this substitute is supported by the following factors:

• Product Status: The substitute is classified as Active, ensuring continued availability and manufacturing support from Microchip Technology.
• Compliance Status: The ATF22V10CQZ-20JU achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original part is RoHS non-compliant.
• Package Compatibility: Identical 28-PLCC (11.51x11.51) packaging and 28-LCC (J-Lead) case designation ensure direct PCB footprint compatibility without layout modifications.
• Electrical Compatibility: Both devices operate at 5V input voltage and utilize EE PLD technology, maintaining functional equivalence within the Microchip ATF series architecture.

Frequently Asked Questions (FAQ)

Q: Can the ATF22V10CQZ-20JU be used as a direct replacement for the ATF20V8BQL-15JC?

A: Yes, the ATF22V10CQZ-20JU is the manufacturer-recommended substitute. Both devices share identical 28-PLCC packaging, 5V input voltage specification, and EE PLD programmable type. The substitute features 10 macrocells versus 8 in the original, and 20 ns speed versus 15 ns, representing functional enhancements rather than limitations.

Q: Are there any PCB layout changes required when substituting the ATF22V10CQZ-20JU?

A: No PCB layout changes are required. Both the ATF20V8BQL-15JC and ATF22V10CQZ-20JU use identical 28-PLCC (11.51x11.51) surface mount packaging with 28-LCC (J-Lead) case designation, ensuring pin-for-pin compatibility.

Q: What is the difference in speed performance between these parts?

A: The ATF20V8BQL-15JC operates at 15 ns, while the ATF22V10CQZ-20JU operates at 20 ns. The 5 ns difference represents a 33% reduction in speed performance. For most applications, this difference is acceptable; however, timing-critical designs should verify that 20 ns propagation delay meets system requirements.

Q: Does the substitute part meet current RoHS compliance requirements?

A: Yes. The ATF22V10CQZ-20JU is ROHS3 compliant, meeting current environmental regulations. The original ATF20V8BQL-15JC is RoHS non-compliant, making the substitute preferable for new designs and systems requiring regulatory compliance documentation.

Q: What is the difference in moisture sensitivity between these parts?

A: The ATF20V8BQL-15JC has MSL 2 (1 Year shelf life), while the ATF22V10CQZ-20JU has MSL 3 (168 Hours shelf life). MSL 3 represents more stringent moisture handling requirements during storage and assembly. Proper moisture control procedures must be followed during component handling and PCB assembly.