ATF16V8BQL-25PC

Overview

The ATF16V8BQL-25PC is a high-performance CMOS Electrically Erasable Programmable Logic Device (PLD) manufactured by Microchip Technology. It features an architecture based on Atmel Flash technology, providing 8 macrocells and 8 registers for complex logic implementation. The device operates at a maximum frequency of 40 MHz with a typical propagation delay of 25 ns. It supports a 5V supply voltage and is housed in a 20-pin PDIP package suitable for through-hole mounting. The component offers reprogrammability, ESD protection, and compatibility with standard PLD programming tools.

Feature Summary

• Built-in 8 macrocells and 8 registers supporting multiple operating modes
• CMOS Flash technology enabling non-volatile storage and reprogramming
• 25 ns typical propagation delay with 40 MHz maximum clock frequency
• Integrated internal pull-up resistors and 200mA latch-up immunity

Applications

• Industrial control systems requiring reliable logic switching
• Replacement for legacy PAL devices in existing designs
• General-purpose digital logic implementation in embedded systems

Procurement Notes

Verify the specific suffix 'QL' against official Microchip documentation to confirm if it denotes a qualified or enhanced variant compared to the standard ATF16V8B series. Confirm RoHS compliance status as some sources indicate leaded options exist for this family. Ensure programming equipment compatibility with the specific Flash architecture before procurement.

Selection Notes

Select this part when a 25 ns speed grade is acceptable for the application timing requirements. Compare against the ATF16V8B-15PC if faster 15 ns performance is needed. Verify that the 20-pin PDIP footprint matches the PCB layout constraints. Consider the ATF16V8BQL-15PC if lower latency is critical while maintaining the same logical capacity.

Part Context

This component belongs to the ATF16V8B series of SPLDs, which are designed to replace older GAL and PAL devices. The 'QL' suffix typically indicates a specific qualification or packaging variation within the Microchip portfolio. It shares architectural similarities with other members like the ATF16V8B-15PU but differs in speed grade and potentially environmental ratings.

Replacement Considerations

Direct pin-compatible replacements include the ATF16V8B-15PC and ATF16V8B-15PU for faster operation. For slower applications, the ATF16V8B-10PC may be considered. Ensure that any substitute maintains the 20-pin PDIP form factor and compatible voltage levels.