ATF22LV10CZ-25XC

Overview

The ATF22LV10CZ-25XC is an electrically erasable programmable logic device (EEPLD) manufactured by Atmel. It features a high-performance CMOS architecture with 12 inputs and 10 I/O macrocells, providing 8 to 16 product terms per output. The device operates within a supply voltage range of 3.0V to 5.5V and delivers a maximum propagation delay of 25ns. It incorporates Input Transition Detection (ITD) circuitry for automatic power-down, achieving a standby current of 25µA maximum. The component supports synchronous and asynchronous reset functions and includes a security fuse for data protection.

Feature Summary

• Low-voltage operation with 3.0V to 5.5V supply range
• Input Transition Detection (ITD) for zero-power standby mode
• 10 Macrocells with variable product term architecture
• CMOS and TTL compatible inputs and outputs

Applications

• Battery-powered systems requiring low standby power
• Logic replacement for legacy PAL devices
• Industrial control applications

Procurement Notes

Verify the package type corresponding to the 'X' suffix, which indicates a 24-lead TSSOP package. Confirm that the 'C' designation aligns with commercial temperature requirements (0°C to +70°C). Ensure programming equipment supports the specific EE Flash memory technology used in this Atmel component.

Selection Notes

Select this part when a 25ns speed grade is required alongside low-power standby capabilities. The CQZ series offers lower active current but operates at a 30ns speed grade; choose the CZ variant if the faster switching speed is critical. Verify that the system clock frequency remains below the maximum operating limit defined by the setup time and feedback constraints.

Part Context

This component belongs to the ATF22LV10CZ family of high-performance EEPLDs. It serves as a low-voltage equivalent to the standard ATF22V10CZ. The datasheet notes that the ATF22LV10CZ series is becoming obsolete and is replaced by the ATF22LV10CQZ series, which offers improved power characteristics at a slightly slower speed.

Replacement Considerations

The ATF22LV10CQZ-30XC is the designated replacement for the ATF22LV10CZ series. While it shares the same pinout and logical architecture, the CQZ variant has a maximum propagation delay of 30ns compared to the 25ns of the CZ variant.