ATF22V10CZ-15PI Equivalent & Substitute Parts

Part Overview

The ATF22V10CZ-15PI is a 22V10 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 10 macrocells with 15 nanosecond propagation delay in a 24-PDIP through-hole package. This part is classified as obsolete, making identification of suitable substitutes necessary for ongoing system support and new design implementations. The device operates at 5V input voltage and is designed for applications requiring programmable logic functionality in legacy embedded systems.

Substiute Parts

ATF22V10CZ-15PI

Microchip TechnologyIn Stock: 1384ATF22V10CZ-15PI Datasheet

Current PartRFQ

ATF22V10CQZ-20PU

Microchip TechnologyIn Stock: 3019ATF22V10CQZ-20PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF22V10CZ-15PI is determined by the following critical parameters:

• Series Compatibility: Both parts must belong to the 22V10 series to ensure functional equivalence
• Macrocell Count: 10 macrocells required for logic capacity matching
• Input Voltage: 5V operation mandatory for circuit compatibility
• Package Type: 24-DIP through-hole package required for mechanical and electrical pin compatibility
• Programmable Type: EE PLD (Electrically Erasable Programmable Logic Device) technology required

The ATF22V10CQZ-20PU qualifies as a substitute based on matching all critical parameters. The primary difference is propagation delay speed (20 ns versus 15 ns), which represents a relaxed timing specification suitable for applications where the original 15 ns performance is not a hard requirement.

Parameter Comparison

Engineering Selection Recommendations

The ATF22V10CQZ-20PU is the designated manufacturer-recommended substitute for the obsolete ATF22V10CZ-15PI. 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: The ATF22V10CQZ-20PU achieves ROHS3 compliance, meeting modern environmental and regulatory requirements
• Functional Equivalence: Identical macrocell count, input voltage, and package configuration ensure direct functional replacement
• Timing Consideration: The 20 ns speed specification represents a 5 nanosecond relaxation from the original 15 ns. Applications must verify that system timing margins accommodate this specification change

For designs where the original 15 ns timing is critical and cannot be relaxed, alternative solutions outside the 22V10 series must be evaluated.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts use the 24-DIP package with identical pin assignments. The through-hole mounting type and physical dimensions are identical, enabling direct mechanical and electrical substitution.

Q: What is the impact of the 5 nanosecond speed difference?

A: The ATF22V10CQZ-20PU has a maximum propagation delay of 20 ns compared to 15 ns for the original part. This affects the maximum operating frequency of logic functions implemented in the device. System timing analysis must confirm that the relaxed timing specification does not violate setup or hold time requirements in the target application.

Q: Are there programming differences between these parts?

A: Both parts are EE PLD devices with identical macrocell architecture. Programming files and fuse maps are compatible between the two parts.

Q: Why is the original part obsolete?

A: The ATF22V10CZ-15PI is classified as obsolete by Microchip Technology. The ATF22V10CQZ-20PU represents the current active product offering in the 22V10 family.

Q: What compliance advantages does the substitute offer?

A: The ATF22V10CQZ-20PU is ROHS3 compliant, whereas the original part is RoHS non-compliant. This makes the substitute suitable for applications subject to RoHS regulations and modern procurement standards.

Q: Are there inventory considerations?

A: The substitute part (ATF22V10CQZ-20PU) has 2923 units in stock, providing reliable availability. The original part has 1310 units available but is no longer manufactured.