ATF22LV10CQZ-30SI

Overview

The ATF22LV10CQZ-30SI is an Electronically Erasable Programmable Logic Device (EEPLD) manufactured by Atmel. It utilizes a high-performance EECMOS technology and features a PAL-type architecture with 10 macrocells. The device provides 22 dedicated inputs and 10 I/O lines, supporting a maximum operating frequency of 33.3 MHz with a typical propagation delay of 30 ns. It operates on a supply voltage range of 3 V to 5.5 V and is housed in a 24-pin SOIC surface-mount package. The component supports power-up reset and register preload functions.

Feature Summary

• PAL-type architecture with 10 macrocells and 132 product terms
• High-speed performance: 33.3 MHz max frequency, 30 ns propagation delay
• Wide voltage operation: 3 V to 5.5 V supply range
• 22 dedicated inputs and 10 I/O lines in a 24-pin SOIC package

Applications

• Digital logic replacement for standard logic gates
• Address decoding and chip select generation
• State machine implementation in embedded systems
• Bus protocol interfacing and translation

Procurement Notes

Verify the specific suffix 'SI' against official Microchip/Atmel documentation to confirm pinout compatibility and temperature grade. Ensure programming equipment supports the EEPLD format. Check RoHS compliance status as older Atmel variants may differ from current manufacturing standards. Confirm package tolerance matches the SOIC-24 specification.

Selection Notes

Select this part when a low-power PLD solution is required for designs operating between 3 V and 5.5 V. The 30 ns speed class suits moderate-frequency digital control applications. Compare against the non-LV ATF22V10 series if higher noise immunity at 5 V is needed without voltage constraints. Ensure the 10 macrocell capacity meets the logic complexity requirements.

Part Context

This component belongs to the ATF22LV10 family of high-performance EEPLDs introduced by Atmel. It serves as a successor to UV-erasable AT22V10 devices, offering electrically erasable reprogrammability. The LV variant specifically targets lower power consumption compared to standard CMOS PLDs while maintaining compatible pinouts and functionality.

Replacement Considerations

Direct replacements include other ATF22LV10 variants with different speed grades or packages, such as ATF22LV10CQZ-25SU. Cross-family substitutes like the ATF16V8B may require logic restructuring due to fewer macrocells.