ATF22LV10CZ-25SI

Overview

The ATF22LV10CZ-25SI is an electrically erasable programmable logic device (EEPLD) manufactured by Microchip Technology, formerly Atmel. It features a high-performance CMOS architecture with 10 macrocells and 12 inputs. The device operates within a 3.0V to 5.5V supply range and delivers a maximum propagation delay of 25ns. Designed for low power consumption, it includes Input Transition Detection (ITD) circuitry that reduces standby current to a maximum of 25µA. The component utilizes Flash memory technology, allowing for reprogrammability and high reliability.

Feature Summary

• Low-voltage operation with 3.0V to 5.5V supply range
• Maximum propagation delay of 25ns
• Input Transition Detection (ITD) for zero-power standby mode
• 10 Macrocells with variable product term architecture

Applications

• Battery-powered systems requiring low standby power
• CMOS and TTL-compatible logic replacement
• State machine initialization circuits

Procurement Notes

Verify the package type corresponds to the 'S' suffix, indicating a 24-lead SOIC package. Confirm the 'I' suffix matches the required industrial temperature range of -40°C to +85°C. Check for RoHS compliance status as older leaded versions are obsolete. Ensure programming equipment supports the specific EEPLD format.

Selection Notes

Select this part when a 25ns speed grade is sufficient for the design. Compare against the ATF22LV10CQZ-30SU if lower active current or TSSOP packaging is preferred. Ensure the design accounts for the 3.0V minimum supply voltage. Verify that the 10 I/O pins meet the interface requirements.

Part Context

This component belongs to the ATF22LV10C family of high-performance EEPLDs. The datasheet notes that the ATF22LV10CZ series is becoming obsolete and is replaced by the ATF22LV10CQZ series. The CQZ variants offer improved power characteristics but may have different timing specifications.

Replacement Considerations

The ATF22LV10CQZ-30SI is the recommended replacement. Note that the CQZ variant has a 30ns delay compared to the 25ns of the CZ version. Verify timing constraints before substitution.