ATF1508AS-10AI100 Equivalent & Substitute Parts

Part Overview

The ATF1508AS-10AI100 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 128 macrocells and 80 I/O pins in a 100-TQFP package. This device is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The ATF1508AS-10AI100 maintains full functional compatibility with its active substitute variant, making direct replacement feasible for new designs and legacy system updates.

Substiute Parts

ATF1508AS-10AI100

Microchip TechnologyIn Stock: 14446ATF1508AS-10AI100 Datasheet

Current PartRFQ

ATF1508AS-10AU100

Microchip TechnologyIn Stock: 1435ATF1508AS-10AU100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATF1508AS-10AU100 qualifies as a direct substitute for the ATF1508AS-10AI100 based on the following criteria:

Electrical Parameters Match:

• Identical macrocell count (128)
• Identical I/O pin count (80)
• Identical propagation delay (10 ns maximum)
• Identical voltage supply range (4.5V ~ 5.5V)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical programmable type and cycle rating

Mechanical Parameters Match:

• Identical package type (100-TQFP)
• Identical package dimensions (14x14)
• Identical mounting type (Surface Mount)
• Identical moisture sensitivity level (MSL 3)

Regulatory & Compliance Parameters Match:

• Identical ECCN classification (EAR99)
• Identical HTSUS code (8542.39.0001)
• Identical REACH status (REACH Unaffected)

The primary distinction is product status: the ATF1508AS-10AI100 is obsolete, while the ATF1508AS-10AU100 is active. The substitute part also features improved RoHS compliance (ROHS3 Compliant versus RoHS non-compliant).

Parameter Comparison

Engineering Selection Recommendations

The ATF1508AS-10AU100 is the appropriate selection for new designs and procurement activities. This part maintains complete electrical and mechanical equivalence to the ATF1508AS-10AI100 while offering the advantage of active product status and improved RoHS3 compliance. For applications subject to RoHS regulations or requiring long-term component availability, the ATF1508AS-10AU100 is the preferred choice. Both parts are functionally interchangeable at the circuit level, with identical pinout, electrical characteristics, and programming specifications.

Frequently Asked Questions (FAQ)

Q: Can the ATF1508AS-10AU100 replace the ATF1508AS-10AI100 in existing designs?

A: Yes. The ATF1508AS-10AU100 is electrically and mechanically identical to the ATF1508AS-10AI100. All electrical parameters, I/O configuration, timing specifications, and package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The ATF1508AS-10AI100 is obsolete, while the ATF1508AS-10AU100 is active. Additionally, the ATF1508AS-10AU100 is ROHS3 compliant, whereas the ATF1508AS-10AI100 is RoHS non-compliant. All functional and electrical specifications are identical.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 100-TQFP package with dimensions of 14x14 mm. Mounting type, pin count, and physical layout are identical.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours. Standard moisture control procedures apply during storage and handling.

Q: Can these parts be programmed in-system?

A: Yes. Both the ATF1508AS-10AI100 and ATF1508AS-10AU100 support in-system programming with a minimum of 10,000 program/erase cycles.

Q: What is the operating temperature range?

A: Both parts operate across the temperature range of -40°C to 85°C (TA), suitable for industrial and commercial applications.