ATF20V8BQL-15PC Equivalent & Substitute Parts

Part Overview

The ATF20V8BQL-15PC is a 20V8 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 8 macrocells with 15 ns propagation delay in a 24-PDIP package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates at 5V input voltage and is mounted through-hole on PCBs.

Substiute Parts

ATF20V8BQL-15PC

Microchip TechnologyIn Stock: 1502ATF20V8BQL-15PC Datasheet

Current PartRFQ

ATF22V10CQZ-20PU

Microchip TechnologyIn Stock: 3019ATF22V10CQZ-20PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATF22V10CQZ-20PU qualifies as a substitute for the ATF20V8BQL-15PC based on the following substitution criteria:

Matching Parameters:

• Manufacturer: Microchip Technology (same source)
• Programmable Type: EE PLD (electrically erasable programmable logic device)
• Voltage - Input: 5V (identical operating voltage)
• Mounting Type: Through Hole (same PCB assembly method)
• Package / Case: 24-DIP (0.300", 7.62mm) (identical physical footprint)
• Supplier Device Package: 24-PDIP (same package designation)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (same environmental rating)

Differing Parameters:

• Number of Macrocells: 10 (vs. 8 in main part) — increased logic capacity
• Speed: 20 ns (vs. 15 ns in main part) — slightly slower propagation delay
• Product Status: Active (vs. Obsolete in main part) — currently manufactured
• RoHS Status: ROHS3 Compliant (vs. RoHS non-compliant in main part) — improved compliance

Parameter Comparison

Engineering Selection Recommendations

The ATF22V10CQZ-20PU is the designated substitute for the obsolete ATF20V8BQL-15PC. Selection of this substitute is based on:

• Product Availability: The ATF20V8BQL-15PC is obsolete; the ATF22V10CQZ-20PU is actively manufactured and stocked (2923 pcs available).
• Compliance Status: The substitute meets ROHS3 compliance requirements, whereas the original part is RoHS non-compliant.
• Electrical Compatibility: Both parts operate at 5V input voltage with identical 24-PDIP packaging and through-hole mounting, ensuring direct PCB compatibility.
• Logic Capacity: The ATF22V10CQZ-20PU provides 10 macrocells versus 8 in the original, offering increased design flexibility without reducing functionality.
• Timing Consideration: The substitute operates at 20 ns versus 15 ns for the original. Applications with timing-critical requirements must evaluate whether this 5 ns difference impacts system performance.

Frequently Asked Questions (FAQ)

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

A: Yes, for most applications. Both parts share identical 5V input voltage, 24-PDIP package, and through-hole mounting. The substitute provides additional macrocells (10 vs. 8) and improved RoHS compliance. The 5 ns speed difference (20 ns vs. 15 ns) must be evaluated against your circuit timing requirements.

Q: What is the physical footprint difference between these parts?

A: There is no physical footprint difference. Both parts use the 24-DIP (0.300", 7.62mm) package with 24-PDIP supplier designation, enabling direct PCB socket compatibility.

Q: Why does the substitute have more macrocells?

A: The ATF22V10CQZ-20PU belongs to the 22V10 series, which is a higher-capacity variant of the 20V8 series. The additional macrocells (10 vs. 8) provide greater programmable logic capacity without changing the physical package or electrical interface.

Q: Is the 20 ns speed of the substitute acceptable for my application?

A: This depends on your circuit's timing specifications. The substitute is 5 ns slower than the original (20 ns vs. 15 ns propagation delay). If your design operates within timing margins that accommodate 20 ns delays, the substitute is suitable. If your application requires 15 ns or faster operation, timing analysis is required.

Q: What is the RoHS compliance difference?

A: The original ATF20V8BQL-15PC is RoHS non-compliant. The substitute ATF22V10CQZ-20PU is ROHS3 compliant, meeting current environmental and regulatory standards for electronic components.

Q: Are both parts electrically erasable programmable logic devices?

A: Yes. Both the ATF20V8BQL-15PC and ATF22V10CQZ-20PU are EE PLD (electrically erasable programmable logic device) types, allowing in-circuit programming and reprogramming without physical removal from the board.