AT22LV10-25PI

Overview

The AT22LV10-25PI is a low-voltage UV Erasable Programmable Logic Device (PLD) manufactured by Microchip Technology. It features the familiar 22V10 logic architecture with 22 dedicated inputs and 10 I/O lines, organized into 10 macrocells. The device operates within a supply voltage range of 3.0V to 5.5V and supports a maximum propagation delay of 25 ns. It includes synchronous preset and asynchronous reset capabilities, power-up reset functionality, and register preload for testing. The component is housed in a 24-lead Plastic Dual Inline Package (PDIP) and is rated for industrial temperature operation from -40°C to +85°C.

Feature Summary

• 22V10 Logic Architecture: 22 Inputs, 10 I/Os, 10 Macrocells
• High-Speed Operation: 25 ns max propagation delay at VCC = 5.5V
• Wide Voltage Range: 3.0V to 5.5V supply operation
• Industrial Temperature Rating: -40°C to +85°C

Applications

• Complex glue logic replacement
• State machine implementation
• Address decoding
• Bus protocol conversion

Procurement Notes

Verify the package type corresponds to the 'PI' suffix, which indicates a 24-lead PDIP. Confirm the speed grade matches the '-25' designation for 25 ns performance. Ensure the industrial temperature range (-40°C to +85°C) meets system requirements. Check for UV erasure window integrity if reprogramming is planned.

Selection Notes

Select the AT22LV10-25PI when a high-speed PLD with 22 inputs and 10 registered outputs is required in a through-hole package. Choose this over the 'L' variant if higher current drive or specific AC timing characteristics are needed, as the standard AT22LV10 has different power consumption profiles compared to the low-power AT22LV10L.

Part Context

This part belongs to the AT22LV10 family of low-voltage UV EPROM-based PLDs. It is functionally compatible with the industry-standard 22V10 architecture. The 'PI' suffix specifically denotes the 24-lead PDIP package and Industrial temperature range, distinguishing it from commercial variants or surface-mount packages like SOIC or PLCC.

Replacement Considerations

Direct pin-compatible replacements include other AT22LV10-25PI units or generic 22V10-compatible PLDs with matching speed grades. Verify that substitute devices support UV erasure if field reprogramming is required. Ensure the replacement package is 24-pin DIP.