ATF1508ASVL-20AC100 Equivalent & Substitute Parts

Part Overview

The ATF1508ASVL-20AC100 is a Complex Programmable Logic Device (CPLD) from Microchip Technology's ATF15xx series, featuring 128 macrocells and 80 I/O pins in a 100-TQFP 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 ns and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

ATF1508ASVL-20AC100

Microchip TechnologyIn Stock: 889ATF1508ASVL-20AC100 Datasheet

Current PartRFQ

ATF1508ASVL-20AU100

Microchip TechnologyIn Stock: 911ATF1508ASVL-20AU100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF1508ASVL-20AC100 is determined by the following critical parameters:

• Macrocell Count: 128 macrocells (must match exactly)
• I/O Pin Count: 80 I/O pins (must match exactly)
• Package Type: 100-TQFP form factor (must match exactly)
• Propagation Delay: 20 ns maximum (must match or be faster)
• Internal Voltage Supply: 3V ~ 3.6V (must be compatible)
• Programming Capability: In-system programmable with minimum 10K cycles (must match)

The ATF1508ASVL-20AU100 qualifies as a direct substitute based on identical electrical specifications, package configuration, and programming characteristics. The primary distinction lies in product status and compliance certifications rather than functional parameters.

Parameter Comparison

Engineering Selection Recommendations

The ATF1508ASVL-20AU100 is the direct functional equivalent of the ATF1508ASVL-20AC100. Selection between these parts should be based on the following criteria:

ATF1508ASVL-20AC100 (Obsolete): Suitable only for legacy system maintenance or repair applications where existing inventory is available. Not recommended for new designs due to obsolete status and RoHS non-compliance.

ATF1508ASVL-20AU100 (Active): Recommended for all new designs and production applications. This part maintains identical electrical and mechanical specifications while offering active product status, ROHS3 compliance, and an extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). The expanded temperature range provides additional design flexibility for industrial and extended-temperature applications.

Frequently Asked Questions (FAQ)

Q: Are the ATF1508ASVL-20AC100 and ATF1508ASVL-20AU100 electrically interchangeable?

A: Yes. Both parts feature identical macrocell count (128), I/O pin count (80), propagation delay (20 ns maximum), internal voltage supply (3V ~ 3.6V), and in-system programming capability. The 100-TQFP package dimensions and pinout are identical, enabling direct substitution at the circuit board level.

Q: What is the primary difference between these two parts?

A: The ATF1508ASVL-20AU100 is an active product with ROHS3 compliance and an extended operating temperature range (-40°C ~ 85°C), while the ATF1508ASVL-20AC100 is obsolete with RoHS non-compliance and a standard temperature range (0°C ~ 70°C). Electrical performance is identical.

Q: Can the ATF1508ASVL-20AU100 replace the ATF1508ASVL-20AC100 in existing designs?

A: Yes. The extended operating temperature range of the ATF1508ASVL-20AU100 (-40°C ~ 85°C) encompasses the standard range of the ATF1508ASVL-20AC100 (0°C ~ 70°C), ensuring compatibility in all applications where the original part was specified.

Q: Are there any packaging differences between these parts?

A: Both parts use the 100-TQFP package with identical 14x14 mm dimensions. The ATF1508ASVL-20AU100 is supplied in Tray packaging, while the ATF1508ASVL-20AC100 packaging specification is not detailed. This does not affect electrical or mechanical compatibility.

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 during storage and handling are required.