100390SC

Overview

The Fairchild Semiconductor 100390SC is a PECL to TTL translator featuring six functional channels with true outputs. It operates within the ECL logic family and is housed in a PQCC28 package, specifically an LCC-28 configuration measuring 0.450 x 0.450 inches in plastic construction. The device supports three-state output characteristics and includes no output latch or register. It complies with RoHS standards and has a maximum delay of 6.6 ns. The component is rated for operation up to 85 °C and carries an EAR99 classification.

Feature Summary

• Converts PECL signals to TTL levels using six independent functional channels
• Provides true output polarity compatible with standard TTL inputs
• Features three-state output capability for bus sharing applications
• Utilizes a compact plastic LCC-28 surface mount package

Applications

• Interface circuits between high-speed ECL systems and TTL logic
• Signal translation in mixed-logic data processing units
• High-speed communication interface adapters

Procurement Notes

Verify the specific suffix 'SC' against official Fairchild documentation to confirm exact pinout and electrical tolerances, as variations exist within the 100390 series. Ensure the procurement source provides valid RoHS compliance certificates matching the EAR99 classification. Confirm the package integrity matches the specified LCC-28 dimensions before integration into high-density designs.

Selection Notes

Select this component when interfacing PECL sources with TTL destinations requiring six parallel channels. The three-state output allows for flexible bus architectures. Verify that the 6.6 ns delay meets system timing requirements. Ensure the operating temperature range up to 85 °C aligns with the environmental conditions of the target application.

Part Context

This part belongs to the 100390 series of logic translators manufactured by Fairchild Semiconductor. These devices are designed to bridge the voltage and logic level differences between ECL and TTL families. The series typically offers multiple functional options within a single package to reduce board space and simplify signal routing in complex digital systems.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic equivalents may differ in propagation delay or output drive strength. Verify compatibility with the specific SC suffix requirements before substitution.