PAL20R4-7JC

Programmable Logic Device Pld Overview

The PAL20R4-7JC is a Programmable Array Logic (PAL) device manufactured by Vantis. It features an Output Type of Open Collector (OT) and supports TTL logic levels. The component operates within a supply voltage range of 4.75V to 5.25V. Its maximum propagation delay is specified as 7.5ns. The device is housed in a 28-Lead Ceramic Dual In-Line Package with J-leads (LDCC28, .5SQ). It contains 20 input lines and 4 output lines, providing 4 registered outputs.

Programmable Logic Device Pld Feature Summary

• Utilizes PAL architecture for high-speed combinational and registered logic implementation.
• Features open collector outputs suitable for wired-logic configurations and bus interfacing.
• Supports standard TTL input thresholds for compatibility with legacy digital systems.

Programmable Logic Device Pld Applications

• High-speed digital control circuits
• Address decoding logic
• Interface adapters between TTL components

Programmable Logic Device Pld Procurement Notes

Verify the specific suffix 'JC' corresponds to the ceramic LDCC28 package and 7.5ns speed grade when sourcing. Confirm RoHS compliance status as historical data indicates non-compliance for this variant. Ensure the supplier provides official Vantis documentation to validate the OT PLD specification and registered output functionality.

Programmable Logic Device Pld Selection Notes

Select this component when a registered PAL solution with open collector outputs is required for TTL-based designs. The 7.5ns delay suits applications demanding moderate switching speeds. Consider the 28-pin ceramic package for environments requiring robust thermal performance compared to plastic variants.

Programmable Logic Device Pld Part Context

This part belongs to the Vantis PAL20R4 series, a family of programmable logic devices. It shares architectural similarities with other PAL20R4 variants but differs in speed grade and package type. The 'JC' suffix specifically denotes the ceramic dual in-line configuration with J-leads, distinguishing it from plastic or lower-speed alternatives.

Programmable Logic Device Pld Replacement Considerations

Direct substitutes include other PAL20R4 variants with compatible pinouts, such as PAL20R4-10JC, if slower speed is acceptable. Cross-reference with generic PAL20R4 equivalents from other manufacturers only if electrical parameters and package dimensions are verified to match exactly.