ATF1504ASV-15AI44 Equivalent & Substitute Parts

Part Overview

The ATF1504ASV-15AI44 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 64 macrocells and 32 I/O pins in a 44-pin TQFP package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

The ATF1504ASV-15AI44 operates with a 15 ns maximum propagation delay and supports in-system programming with a minimum of 10,000 program/erase cycles. It is designed for embedded applications requiring programmable logic integration in surface-mount configurations.

Substiute Parts

ATF1504ASV-15AI44

Microchip TechnologyIn Stock: 2595ATF1504ASV-15AI44 Datasheet

Current PartRFQ

ATF1504ASV-15AU44

Microchip TechnologyIn Stock: 1889ATF1504ASV-15AU44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1504ASV-15AI44 is determined by strict equivalence across the following critical parameters:

• Macrocell count: 64 macrocells
• I/O pin count: 32 pins
• Maximum propagation delay: 15 ns
• Supply voltage range: 3V ~ 3.6V
• Package type: 44-TQFP (10x10)
• Programmable type: In System Programmable (min 10K program/erase cycles)
• Operating temperature range: -40°C ~ 85°C

The ATF1504ASV-15AU44 meets all electrical and mechanical specifications required for direct substitution. Both devices share identical core functionality, pin configuration, and performance characteristics within the ATF15xx series.

Parameter Comparison

Engineering Selection Recommendations

The ATF1504ASV-15AU44 is the direct functional equivalent of the ATF1504ASV-15AI44. Selection between these parts is determined by regulatory and compliance requirements:

The ATF1504ASV-15AI44 is classified as obsolete and carries RoHS non-compliant status. The ATF1504ASV-15AU44 maintains active product status and meets ROHS3 compliance requirements. For new designs or procurement requiring regulatory compliance, the ATF1504ASV-15AU44 is the appropriate selection. Both devices are electrically and mechanically interchangeable within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Are the ATF1504ASV-15AI44 and ATF1504ASV-15AU44 pin-compatible?

A: Yes. Both devices use the 44-TQFP (10x10) package with identical pin assignments, 32 I/O pins, and 64 macrocells. They are directly interchangeable at the board level.

Q: What is the difference between the -15AI44 and -15AU44 suffixes?

A: The suffix designates packaging and compliance specifications. The -15AI44 variant is obsolete with RoHS non-compliant status. The -15AU44 variant is active and ROHS3 compliant.

Q: Can the ATF1504ASV-15AU44 replace the ATF1504ASV-15AI44 in existing designs?

A: Yes. The ATF1504ASV-15AU44 meets all electrical and mechanical specifications of the ATF1504ASV-15AI44, including propagation delay (15 ns), supply voltage (3V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and programmable functionality (in-system programmable with minimum 10K program/erase cycles).

Q: Are there any compliance differences between these parts?

A: The ATF1504ASV-15AI44 is RoHS non-compliant. The ATF1504ASV-15AU44 is ROHS3 compliant. Both are REACH unaffected and classified under ECCN EAR99.

Q: What is the moisture sensitivity level for these devices?

A: Both the ATF1504ASV-15AI44 and ATF1504ASV-15AU44 have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours.