AT22LV10L-25JI

Overview

The AT22LV10L-25JI is a low-voltage UV erasable programmable logic device (PLD) manufactured by Microchip Technology. It features a PAL-type architecture with 11 dedicated inputs, 10 I/O lines, and 10 macrocells providing up to 132 product terms. The device operates within a 3.0V to 5.5V supply range and supports industrial temperatures (-40°C to 85°C). It delivers a maximum propagation delay of 25 ns at VCC = 3.0V and consumes typical DC power of 4 mA at 3.6V. The component is housed in a 28-lead Plastic J-leaded Chip Carrier (PLCC) package.

Feature Summary

• UV Erasable: Fuse array erased via 2537 Å ultraviolet light exposure.
• Low-Power CMOS: Typical current consumption of 4 mA at VCC = 3.6V.
• High-Speed Operation: Maximum propagation delay of 25 ns.
• Industrial Temperature Range: Qualified for -40°C to 85°C operation.

Applications

• Battery-powered systems requiring low power dissipation.
• State machine initialization utilizing power-up reset functionality.
• Complex logic function realization using variable product terms.

Procurement Notes

Verify the ordering suffix 'JI' corresponds to the Industrial temperature range (-40°C to 85°C) and the 28-lead PLCC package. Confirm that the specific revision of the datasheet matches the production lot requirements. Ensure UV protection measures are implemented during storage to prevent unintentional erasure from ambient light sources.

Selection Notes

Select the AT22LV10L variant over the standard AT22LV10 when lower power consumption is critical, as it offers significantly reduced current draw. Ensure the system voltage remains within the 3.0V to 5.5V operating range. Verify that the 25 ns speed grade meets the timing constraints of the target application, particularly regarding setup times and clock periods.

Part Context

This component belongs to the AT22LV10 family of low-voltage UV EPROM PLDs. It shares the same logic architecture as the standard AT22LV10 but is optimized for lower power applications. The 'L' designation indicates the low-power CMOS version, while '25' denotes the 25 ns speed grade, and 'JI' specifies the industrial temperature rating and PLCC package type.

Replacement Considerations

The AT22LV10-25JI serves as a higher-power alternative within the same package and speed grade. Cross-model compatibility requires verifying power supply constraints and thermal management capabilities, as the non-L variant draws significantly more current under identical conditions.