ATF16V8B-15PI Equivalent & Substitute Parts

Part Overview

The ATF16V8B-15PI is a 16V8 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 8 macrocells with 15 nanosecond propagation delay in a 20-pin DIP package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement. The ATF16V8B series remains widely used in legacy embedded systems and industrial applications where PLD functionality is required.

Substiute Parts

ATF16V8B-15PI

Microchip TechnologyIn Stock: 1257ATF16V8B-15PI Datasheet

Current PartRFQ

ATF16V8B-15PU

Microchip TechnologyIn Stock: 24249ATF16V8B-15PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATF16V8B-15PU qualifies as a direct substitute for the ATF16V8B-15PI based on the following critical parameters:

• Series Match: Both parts belong to the 16V8 series
• Macrocell Count: Identical at 8 macrocells
• Programmable Type: Both are EE PLD (Electrically Erasable Programmable Logic Device)
• Input Voltage: Both operate at 5V
• Speed Rating: Both specified at 15 ns propagation delay
• Package Configuration: Both use 20-PDIP (20-pin Dual Inline Package)
• Mounting Technology: Both are Through Hole components

The primary distinction between these parts is packaging format (DIP vs. Tube) and product status (Obsolete vs. Active), with the substitute offering improved compliance and current availability.

Parameter Comparison

Engineering Selection Recommendations

The ATF16V8B-15PU is the appropriate selection for new designs and component replacement applications. This part maintains full electrical and mechanical compatibility with the ATF16V8B-15PI while offering the following advantages:

• Active Product Status: Currently manufactured and supported by Microchip Technology, ensuring long-term availability and technical support
• Regulatory Compliance: ROHS3 compliant, meeting current environmental and hazardous substance restrictions
• Verified Programmability: DiGi-Electronics Programmable status verified, confirming programming capability
• Inventory Availability: Significantly higher stock levels (24,212 units) compared to the obsolete variant

For legacy system maintenance where the original ATF16V8B-15PI must be retained, the substitute provides identical functional performance and pinout compatibility.

Frequently Asked Questions (FAQ)

Q: Are the ATF16V8B-15PI and ATF16V8B-15PU pin-compatible?

A: Yes. Both parts use the 20-PDIP package with identical pinout, voltage specifications (5V), and functional characteristics (8 macrocells, 15 ns speed). Direct socket substitution is possible.

Q: What is the difference between the -15PI and -15PU suffixes?

A: The suffix indicates packaging format. The -15PI uses standard DIP packaging, while the -15PU uses tube packaging. The electrical specifications and performance are identical.

Q: Can the ATF16V8B-15PU be programmed using the same tools as the ATF16V8B-15PI?

A: Yes. Both parts are EE PLD devices with verified programmability. Standard ATF16V8 programming equipment and software are compatible with both variants.

Q: Why is the ATF16V8B-15PI listed as obsolete?

A: The ATF16V8B-15PI has been superseded by the active ATF16V8B-15PU variant. Microchip Technology continues to manufacture the 16V8 series, with the -15PU representing the current production option.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts specify identical electrical parameters: 5V input voltage, 15 nanosecond propagation delay, 8 macrocells, and EE PLD programmable type.

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

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.