ATF22V10CQZ-20JU

Programmable Logic Device Pld Overview

The ATF22V10CQZ-20JU is an electrically erasable programmable logic device (EEPLD) manufactured by Microchip Technology, utilizing Atmel Flash memory technology. It features a 28-lead Plastic J-leaded Chip Carrier (PLCC) package and operates within the industrial temperature range of -40°C to +85°C. The device provides a maximum pin-to-pin propagation delay of 20 ns with a typical supply current of 40 mA at 15 MHz. It incorporates Input Transition Detection (ITD) circuitry for zero standby power dissipation, achieving a maximum standby current of 120 µA.

Programmable Logic Device Pld Feature Summary

• Zero Power Dissipation: Utilizes Input Transition Detection (ITD) to automatically enter low-power standby mode when idle, reducing total system power consumption.
• High-Speed Performance: Delivers a maximum 20 ns pin-to-pin delay and supports external feedback frequencies up to 38.5 MHz.
• Advanced Flash Memory: Offers reprogrammability with 100 erase/write cycles, 20-year data retention, and 2,000V ESD protection.
• Universal Architecture: Emulates most 24-pin PAL devices and includes latch features to hold inputs to previous logic states.

Programmable Logic Device Pld Applications

• Direct replacement for legacy 22V10 family and other 24-pin combinatorial PLDs in industrial systems.
• Complex logic function realization requiring synchronous preset and asynchronous reset capabilities.
• Power-sensitive applications utilizing zero standby power modes to manage system energy requirements.

Programmable Logic Device Pld Procurement Notes

Verify that the component matches the specific 20 ns speed grade and Industrial temperature rating (-40°C to +85°C). Confirm the 28-lead PLCC package type (Code 28J) aligns with board layout requirements. Ensure programming equipment supports the required JEDEC file formats for preload and security fuse configuration.

Programmable Logic Device Pld Selection Notes

Select this part for designs requiring industrial temperature stability and low active power consumption. The CQZ variant combines low high-frequency ICC with zero standby power features. For commercial applications only, consider lower speed grades or standard CZ variants, though the CQZ offers broader performance margins. Ensure compiler tools are configured for PAL or GAL emulation modes as needed.

Programmable Logic Device Pld Part Context

This device belongs to the ATF22V10CQZ series, which succeeded the obsolete ATF22V10CZ line. The 'CQZ' designation indicates the inclusion of Input Transition Detection (ITD) for zero standby power, distinguishing it from the standard 'CZ' version. The '20' suffix specifies the 20 ns speed grade, while 'JU' denotes the Industrial temperature range and PLCC package.

Programmable Logic Device Pld Replacement Considerations

The ATF22V10CZ series is obsolete and replaced by the ATF22V10CQZ. When replacing older 22V10-family parts, verify that the target application does not require speeds faster than 20 ns. Ensure that the new design accommodates the specific pinout and electrical characteristics of the CQZ architecture.

Programmable Logic Device Pld FAQ

How does the device achieve zero standby power?

The ATF22V10CQZ uses patented Input Transition Detection (ITD) circuitry. When the device is idle, it automatically powers down to a zero standby mode, limiting worst-case standby current to 120 µA.

What is the maximum operating frequency for external feedback?

With a 20 ns speed grade, the maximum operating frequency for external feedback is 38.5 MHz, calculated based on the setup time and clock-to-output delay.

Can unused product terms affect power consumption?

No. The compiler automatically disables unused product terms to decrease power consumption, ensuring efficient operation even if not all macrocells are fully utilized.