ATF22V10CQZ-20SI

Overview

The ATF22V10CQZ-20SI is an Electronically Erasable Programmable Logic Device (EEPLD) from the ATF22V10C family, manufactured by Atmel. It features a PAL-type architecture with 10 macrocells and supports up to 22 inputs and 10 I/O lines. The device operates at a maximum frequency of 50 MHz with a typical propagation delay of 20 ns. It utilizes a 24-pin PLCC package and functions within a supply voltage range of 4.5 V to 5.5 V. The component is designed for industrial temperature ranges, supporting operations between -40°C and +85°C.

Feature Summary

• PAL-type EEPLD architecture with 10 macrocells
• 20 ns maximum propagation delay
• 50 MHz maximum operating frequency
• 24-pin PLCC package

Applications

• Complex glue logic replacement
• Address decoding circuits
• Bus protocol conversion

Procurement Notes

Verify the specific suffix 'SI' against official Microchip/Atmel documentation to confirm the exact temperature grade and package variant, as suffixes define environmental and physical specifications. Ensure compatibility with existing programming tools for EEPLD devices. Check RoHS compliance status relative to the manufacturing date and region requirements.

Selection Notes

Select this component when a non-volatile programmable logic solution with moderate speed (20 ns) is required. Compare against the ATF22V10B series if higher performance or different packaging options are needed. Verify that the 10 macrocell capacity and 22 input limit meet the design complexity requirements before finalizing the part number.

Part Context

This part belongs to the ATF22V10C series of EEPLDs, which offer reprogrammability via electrical erasure. It serves as a drop-in replacement for older GAL devices in many applications. The 'C' designation typically indicates commercial temperature range and specific package characteristics within the broader ATF22V10 family.

Replacement Considerations

Direct pin-compatible replacements include other ATF22V10 variants such as ATF22V10CQZ-15PU or ATF22V10BQL-15SI, provided timing and temperature specifications align with the system requirements.