ATF1504AS-10AC100 Equivalent & Substitute Parts

Part Overview

The ATF1504AS-10AC100 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 64 macrocells and 64 I/O pins in a 100-TQFP surface mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement requirements. The part operates with a 10 ns maximum propagation delay and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

ATF1504AS-10AC100

Microchip TechnologyIn Stock: 1669ATF1504AS-10AC100 Datasheet

Current PartRFQ

ATF1504AS-10AU100

Microchip TechnologyIn Stock: 1563ATF1504AS-10AU100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1504AS-10AC100 is based on the following critical parameters that must remain consistent:

• Macrocell Count: 64 macrocells (functional logic capacity)
• I/O Pin Count: 64 pins (interface compatibility)
• Package Type: 100-TQFP (physical and thermal compatibility)
• Propagation Delay: 10 ns maximum (timing performance)
• Programming Interface: In-system programmable capability
• Manufacturer: Microchip Technology (design and support continuity)

The ATF1504AS-10AU100 meets all substitution criteria as a direct equivalent within the ATF15xx series, with identical core specifications and enhanced operational characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ATF1504AS-10AU100 is the direct substitute for the obsolete ATF1504AS-10AC100. Both devices share identical core specifications: 64 macrocells, 64 I/O pins, 10 ns propagation delay, and 100-TQFP packaging. The substitute part offers the following advantages:

• Active Product Status: The ATF1504AS-10AU100 is currently in active production, ensuring long-term availability and supply chain stability.
• Enhanced Compliance: ROHS3 compliance status provides regulatory alignment for new designs and procurement cycles.
• Extended Operating Range: The substitute supports an expanded voltage supply range (4.5V ~ 5.5V versus 4.75V ~ 5.25V) and extended temperature range (-40°C ~ 85°C versus 0°C ~ 70°C), enabling deployment in broader environmental conditions.
• Packaging Format: Available in tray packaging, suitable for automated assembly processes.

For applications requiring the original operating temperature range (0°C ~ 70°C) and voltage specifications (4.75V ~ 5.25V), the ATF1504AS-10AU100 remains fully compatible and backward-compatible at the functional and pinout level.

Frequently Asked Questions (FAQ)

Q: Can the ATF1504AS-10AU100 directly replace the ATF1504AS-10AC100 in existing designs?

A: Yes. Both devices are pin-compatible with identical macrocell and I/O counts. The substitute supports the original operating parameters and extends compatibility to broader voltage and temperature ranges.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus active), RoHS compliance (non-compliant versus ROHS3 compliant), and operational ranges. The ATF1504AS-10AU100 supports wider voltage (4.5V ~ 5.5V) and temperature (-40°C ~ 85°C) specifications.

Q: Are there any package or pinout differences?

A: No. Both parts use the 100-TQFP (14x14) package with identical pinout and physical dimensions. The substitute is available in tray packaging format.

Q: Does the substitute support the same programming interface?

A: Yes. Both devices support in-system programming with identical minimum program/erase cycle specifications (10,000 cycles).

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

A: Both the ATF1504AS-10AC100 and ATF1504AS-10AU100 have MSL 3 rating with a 168-hour floor life requirement.

Q: Are there export or regulatory considerations?

A: Both parts share identical ECCN (EAR99), HTSUS (8542.39.0001), and REACH status classifications. The substitute offers improved RoHS3 compliance for new procurement cycles.