100397QI

Overview

The Fairchild Semiconductor 100397QI is a mixed signal translator featuring one bidirectional circuit with four channels. It is housed in a 28-PLCC package measuring 11.43x11.43 mm. This component facilitates level shifting between different logic families, ensuring compatibility in mixed-signal systems.

Feature Summary

• Bidirectional data translation capability
• Four-channel configuration within a single circuit
• Mixed-signal interface support

Applications

• Level shifting between TTL and PECL logic families
• Mixed-signal system integration
• Interface bridging for digital communication protocols

Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or its successors, noting corporate acquisitions. Confirm the 28-PLCC package dimensions match the 11.43x11.43 mm specification. Ensure the part number suffix 'QI' corresponds to the specific tape-and-reel or tray variant required for your assembly process. Cross-reference RoHS compliance status with current regulatory requirements.

Selection Notes

Select this component when bidirectional translation between specific logic levels is required. The four-channel design reduces board space compared to discrete solutions. Verify voltage compatibility with both source and destination logic families before implementation. Consider the PLCC package constraints for PCB layout and thermal management during selection.

Part Context

This device belongs to the 100K series of logic components from Fairchild Semiconductor. It serves as a specialized interface solution for converting signals between different logic standards. The 100K series typically includes high-speed ECL and PECL compatible devices, positioning this translator within a family designed for high-performance digital applications.

Replacement Considerations

Check for direct equivalents from ON Semiconductor following the acquisition of Fairchild's semiconductor assets. Verify pin-to-pin compatibility and electrical characteristics against alternative translators like the 100391 if unidirectional conversion suffices.