ATF22V10CQZ-20SC

Overview

The ATF22V10CQZ-20SC is an Electronically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology, formerly Atmel. It features a PAL-type architecture with 10 macrocells and 10 registered outputs. The device operates at a maximum frequency of 50 MHz with a typical propagation delay of 20 ns. It supports a supply voltage range of 4.5 V to 5.5 V and functions within an industrial temperature range of -40°C to +85°C. The component is housed in a 24-pin Small Outline Package (SOIC).

Feature Summary

• 10 Macrocells with registered output structure
• 20 ns maximum propagation delay
• 50 MHz maximum operating frequency
• Industrial temperature range (-40°C to +85°C)

Applications

• Digital logic replacement
• State machine implementation
• Address decoding

Procurement Notes

Verify the package type matches the design requirements, as this specific suffix indicates a SOIC package rather than the more common PDIP or PLCC variants. Confirm RoHS compliance status through the manufacturer's current documentation, as environmental regulations may vary by production batch. Ensure ESD protection protocols are followed during handling due to the CMOS technology used.

Selection Notes

Select this part when a registered output configuration is required for synchronous designs. The 10 I/O pins provide sufficient connectivity for moderate complexity logic applications. Compare against the ATF22V10C series for pin compatibility if space constraints allow for different package footprints. Verify that the 5V supply voltage aligns with the system power rails.

Part Context

This component belongs to the ATF22V10C family of EEPLDs, which utilize EEPROM technology for non-volatile programming. Unlike traditional PALs, these devices allow for in-system reprogramming without UV erasure. The '20' designation refers to the speed grade, indicating a 20 ns delay, while the 'SC' suffix specifies the 24-pin SOIC package format.

Replacement Considerations

Direct replacements include other ATF22V10C variants with compatible packages, such as ATF22V10CQZ-20PU (PDIP) or ATF22V10CQZ-20PC (PLCC), provided the board layout supports the respective footprint. Cross-reference with Microchip's official substitution guide for verified equivalents.