ATF1504ASVL-20AC100 Equivalent & Substitute Parts

Part Overview

The ATF1504ASVL-20AC100 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 production requirements. The part operates with a maximum propagation delay of 20 nanoseconds and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

ATF1504ASVL-20AC100

Microchip TechnologyIn Stock: 879ATF1504ASVL-20AC100 Datasheet

Current PartRFQ

ATF1504ASVL-20AU100

Microchip TechnologyIn Stock: 790ATF1504ASVL-20AU100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF1504ASVL-20AC100 is determined by the following critical parameters:

• Macrocell Count: 64 macrocells (functional logic capacity)
• I/O Pin Count: 64 I/O pins (interface capability)
• Propagation Delay: 20 ns maximum (timing performance)
• Internal Voltage Supply: 3V ~ 3.6V (power compatibility)
• Package Type: 100-TQFP (14x14) (physical and electrical footprint)
• Programming Capability: In System Programmable with minimum 10K cycles (field programmability)

The ATF1504ASVL-20AU100 meets all these substitution criteria, differing only in operating temperature range and product status classifications.

Parameter Comparison

Engineering Selection Recommendations

The ATF1504ASVL-20AU100 is the direct functional equivalent of the ATF1504ASVL-20AC100. Selection between these parts is determined by application requirements:

ATF1504ASVL-20AC100 is suitable for applications with operating temperature requirements limited to 0°C ~ 70°C where RoHS compliance is not mandated. This part is obsolete and inventory availability is finite.

ATF1504ASVL-20AU100 is the recommended selection for new designs and ongoing production. This part is active, ROHS3 compliant, and supports an extended operating temperature range of -40°C ~ 85°C, providing broader environmental compatibility. Current inventory status indicates 688 units available.

Both parts share identical electrical specifications, macrocell architecture, I/O configuration, and package dimensions, ensuring direct functional interchangeability in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the ATF1504ASVL-20AU100 replace the ATF1504ASVL-20AC100 in existing designs?

A: Yes. Both parts are functionally equivalent with identical macrocell count (64), I/O pin count (64), propagation delay (20 ns), internal voltage supply (3V ~ 3.6V), and package type (100-TQFP). The primary differences are product status, RoHS compliance, and operating temperature range. If your application operates within 0°C ~ 70°C, direct substitution is valid. If extended temperature operation is required, the ATF1504ASVL-20AU100 supports -40°C ~ 85°C.

Q: What is the significance of the operating temperature difference?

A: The ATF1504ASVL-20AC100 operates from 0°C ~ 70°C, while the ATF1504ASVL-20AU100 operates from -40°C ~ 85°C. Applications requiring operation below 0°C or above 70°C must use the ATF1504ASVL-20AU100. For standard commercial temperature ranges (0°C ~ 70°C), both parts are equivalent.

Q: Does RoHS compliance affect functional performance?

A: RoHS compliance relates to material composition and environmental regulations, not functional performance. Both parts deliver identical electrical and timing characteristics. The ATF1504ASVL-20AU100 is ROHS3 compliant, making it suitable for applications with regulatory requirements. The ATF1504ASVL-20AC100 is RoHS non-compliant.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 100-TQFP (14x14) surface mount package with identical physical dimensions and pin configurations, ensuring PCB layout compatibility.

Q: What is the significance of product status (Obsolete vs. Active)?

A: The ATF1504ASVL-20AC100 is classified as obsolete, indicating Microchip Technology has discontinued production. The ATF1504ASVL-20AU100 is active and continues in production. For long-term supply chain stability, the active part is preferred for new designs and production planning.