ATF1504AS-15AC100 Equivalent & Substitute Parts

Part Overview

The ATF1504AS-15AC100 is a Complex Programmable Logic Device (CPLD) from Microchip Technology's ATF15xx series, featuring 64 macrocells and 64 I/O pins in a 100-TQFP surface mount package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The part operates with a maximum propagation delay of 15 ns and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

ATF1504AS-15AC100

Microchip TechnologyIn Stock: 1391ATF1504AS-15AC100 Datasheet

Current PartRFQ

ATF1504AS-10AU100

Microchip TechnologyIn Stock: 1563ATF1504AS-10AU100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1504AS-15AC100 is determined by the following critical parameters:

• Macrocell and I/O Count: Both the main part and substitute must provide 64 macrocells and 64 I/O pins to maintain functional equivalence
• Package Type: Both parts must use the 100-TQFP (14x14) surface mount package to ensure PCB compatibility without layout modifications
• Programmable Architecture: Both parts must support in-system programming with equivalent or superior cycle ratings
• Manufacturer Series: Both parts belong to the ATF15xx series from Microchip Technology

The ATF1504AS-10AU100 meets all substitution criteria. While it offers improved electrical performance characteristics (faster propagation delay and extended operating temperature range), it maintains identical macrocell, I/O, and package specifications, enabling direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

The ATF1504AS-10AU100 is the direct substitute for the ATF1504AS-15AC100. Selection should be based on the following factors:

Product Status: The ATF1504AS-15AC100 is obsolete, while the ATF1504AS-10AU100 is active. For new designs or production continuity, the active part is the appropriate choice.

Compliance: The ATF1504AS-10AU100 is ROHS3 compliant, whereas the ATF1504AS-15AC100 is non-compliant. Applications requiring RoHS compliance must use the substitute part.

Performance Characteristics: The substitute part provides superior electrical performance with a 10 ns maximum propagation delay compared to 15 ns, and an extended operating temperature range of -40°C to 85°C versus 0°C to 70°C. These improvements do not introduce incompatibility; they represent enhanced capability.

Voltage Supply Range: The substitute part accepts a wider internal voltage supply range (4.5V ~ 5.5V) compared to the main part (4.75V ~ 5.25V), providing greater design flexibility.

Frequently Asked Questions (FAQ)

Q: Can the ATF1504AS-10AU100 directly replace the ATF1504AS-15AC100 on existing PCBs?

A: Yes. Both parts use identical 100-TQFP (14x14) surface mount packages and provide 64 macrocells with 64 I/O pins. No PCB layout modifications are required.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), propagation delay (15 ns vs. 10 ns), operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C), and voltage supply range (4.75V ~ 5.25V vs. 4.5V ~ 5.5V).

Q: Are there any functional limitations when substituting the ATF1504AS-10AU100 for the ATF1504AS-15AC100?

A: No. The substitute part maintains identical macrocell and I/O specifications, in-system programmability with equivalent cycle ratings, and package compatibility. The substitute offers equal or superior performance.

Q: Does the moisture sensitivity level differ between these parts?

A: No. Both parts have an MSL rating of 3 (168 Hours), requiring identical handling and storage procedures.

Q: What compliance certifications apply to each part?

A: The ATF1504AS-15AC100 is RoHS non-compliant. The ATF1504AS-10AU100 is ROHS3 compliant. Both parts are REACH unaffected and classified under ECCN EAR99.