EP900JM

Programmable Logic Device Pld Overview

The Altera EP900JM is a UV-erasable programmable logic device (PLD) belonging to the PAL-type architecture family. It utilizes CMOS technology and is housed in a windowed ceramic dual in-line package (CDIP40). The device features 24 macrocells, supporting up to 36 inputs and 24 outputs. Key electrical specifications include a maximum propagation delay of 35 nanoseconds and a maximum operating frequency of 33.3 MHz. It operates within a commercial temperature range of 0°C to 70°C.

Programmable Logic Device Pld Feature Summary

• UV-erasable programmable logic structure for reconfigurable circuit implementation
• CMOS technology ensuring low power consumption and high speed performance
• Windowed ceramic package design facilitating ultraviolet erasure for multiple programming cycles

Programmable Logic Device Pld Applications

• Complex digital logic replacement in legacy systems
• Custom interface adapters for industrial control equipment
• Prototyping of combinational and registered logic functions

Programmable Logic Device Pld Procurement Notes

Verify component authenticity due to age and potential obsolescence. Confirm the integrity of the quartz window on the ceramic package, as damage may prevent proper UV erasure. Ensure compatibility with existing socket hardware and verify that the specific suffix matches the required speed grade and package variant. Check for lead-free compliance if required by current manufacturing standards.

Programmable Logic Device Pld Selection Notes

Select this component when a PAL-compatible solution with UV erasability is required for small-scale logic designs. Consider the 35ns delay and 24 macrocell capacity against design complexity. Evaluate the CDIP40 package constraints for PCB layout. Compare against modern CPLDs if higher density or electrically erasable options are preferred for production volumes.

Programmable Logic Device Pld Part Context

This part belongs to Altera's early generation of programmable logic devices, predating the FPGA era. It represents the PAL-type architecture which offered fixed AND planes and programmable OR planes. These devices were foundational for replacing discrete TTL logic gates in the 1980s and 1990s, offering flexibility without the cost of custom ASICs.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements are limited due to architectural differences. Modern equivalents from Intel/Altera include MAX series CPLDs, though software tools differ. Generic PAL clones may exist but require verification of timing and voltage levels. No official direct substitute part numbers are publicly confirmed for this specific obsolete model.