ATF1500AL-20AI Equivalent & Substitute Parts

Part Overview

The ATF1500AL-20AI is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 32 macrocells and 32 I/O pins in a 44-TQFP surface mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. The part operates within the -40°C to 85°C temperature range with a maximum propagation delay of 20 nanoseconds and requires a 4.5V to 5.5V supply voltage.

Substiute Parts

ATF1500AL-20AI

Microchip TechnologyIn Stock: 1425ATF1500AL-20AI Datasheet

Current PartRFQ

ATF1500AL-20AU

Microchip TechnologyIn Stock: 1738ATF1500AL-20AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1500AL-20AI is determined by strict equivalence across the following critical parameters:

• Identical macrocell count (32 macrocells)
• Identical I/O pin count (32 I/O)
• Matching propagation delay specification (20 ns maximum)
• Identical voltage supply range (4.5V ~ 5.5V)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical package type and pin configuration (44-TQFP)
• Identical programmable type and cycle rating (In System Programmable, min 100 cycles)
• Same manufacturer (Microchip Technology)
• Same series designation (ATF15xx)

The ATF1500AL-20AU meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ATF1500AL-20AU is the direct functional equivalent of the ATF1500AL-20AI. Both devices share identical electrical and mechanical specifications, including macrocell architecture, I/O configuration, timing characteristics, and thermal operating range.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The ATF1500AL-20AI is classified as obsolete, while the ATF1500AL-20AU maintains active product status. The ATF1500AL-20AU additionally meets ROHS3 compliance requirements, whereas the ATF1500AL-20AI is non-compliant. Both devices maintain equivalent moisture sensitivity ratings and REACH unaffected status.

For new designs or production continuity, the ATF1500AL-20AU is the appropriate selection due to its active availability and regulatory compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the ATF1500AL-20AU directly replace the ATF1500AL-20AI in existing designs?

A: Yes. Both devices are electrically and mechanically identical across all functional parameters, including macrocell count, I/O configuration, timing specifications, voltage requirements, and operating temperature range. No design modifications are required for substitution.

Q: What is the difference between the ATF1500AL-20AI and ATF1500AL-20AU?

A: The devices are functionally equivalent. The primary differences are product status (obsolete versus active) and RoHS compliance (non-compliant versus ROHS3 compliant). The ATF1500AL-20AU is the recommended selection for new applications.

Q: Are the package specifications identical?

A: Yes. Both parts use the 44-TQFP surface mount package with identical pin configuration and mechanical dimensions (10x10 mm).

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: macrocell count (32), I/O pin count (32), propagation delay (20 ns maximum), supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), package type (44-TQFP), and programmable type (In System Programmable).

Q: Is the ATF1500AL-20AU available in production quantities?

A: Yes. The ATF1500AL-20AU is classified as active product status with documented inventory availability.