100328QC

Overview

The Fairchild Semiconductor 100328QC is a low-power octal ECL/TTL bidirectional transceiver housed in a 28-pin PLCC package. It provides eight independent channels for level shifting between TTL and ECL logic families. The device supports both true and complemented outputs, enabling flexible interface configurations. Key electrical parameters include a maximum propagation delay of 5.4 ns and an operating temperature range from -40°C to 85°C. The component utilizes a plastic epoxy body with dimensions of 11.43 mm by 11.43 mm.

Feature Summary

• Bidirectional data transfer capability between TTL and ECL logic levels
• Octal configuration providing eight independent translation channels
• Low power consumption design optimized for high-speed applications

Applications

• Interfacing TTL-based microprocessors with ECL memory systems
• Level shifting in high-speed digital communication interfaces
• Data bus translation in mixed-logic family circuit boards

Procurement Notes

Verify the specific suffix (QC) against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the package type corresponds to your PCB footprint. Check for RoHS compliance status if environmental regulations apply to your assembly process. Confirm availability through authorized distributors as this component may be subject to lifecycle changes.

Selection Notes

Select this component when bidirectional translation between TTL and ECL is required within a single integrated circuit. Consider the 5.4 ns delay specification for timing-critical paths. Evaluate the 28-pin PLCC package constraints against your board space limitations. Verify that the voltage levels of your source and destination circuits align with the device's specified input and output thresholds.

Part Context

This part belongs to the 100K series of ECL logic devices manufactured by Fairchild Semiconductor. It serves as a bridge between different logic families, facilitating integration in systems requiring mixed signaling standards. The device is designed for reliability in industrial and commercial environments, supporting stable operation across the specified temperature range.

Replacement Considerations

Check for direct equivalents such as the 100328QI or other octal transceivers from the same manufacturer family. Ensure any substitute maintains the same bidirectional functionality and package dimensions. Verify compatibility with existing TTL and ECL voltage levels before implementation.