100390QI

Overview

The Fairchild Semiconductor 100390QI is a PECL to TTL translator featuring six functional channels with true outputs. It operates within the ECL logic family and utilizes a PQCC28 package, specifically identified as LCC-28 with dimensions of 0.450 x 0.450 inches in plastic construction (MO-047). The device supports three-state outputs and functions without output latches or registers. It complies with RoHS standards and has an EAR99 classification. The maximum delay is specified at 6.6 ns, and it operates within a temperature range from 0°C to 85°C.

Feature Summary

• Translates PECL signals to TTL levels for interface compatibility
• Provides six independent functional channels with true output polarity
• Features three-state output capability for bus driving applications

Applications

• PECL to TTL signal translation
• ECL logic family interfacing
• Digital circuit level conversion

Procurement Notes

Verify the exact suffix 'QI' against official Fairchild/OnSemi documentation, as standard listings often reference 'QC'. Confirm package details match the LCC-28 specification. Ensure compliance requirements align with project needs. Check for any integration updates due to Fairchild's acquisition by OnSemi. Validate pinout configurations before procurement.

Selection Notes

Select this component when translating high-speed PECL signals to TTL logic levels is required. The six-channel configuration allows for parallel data processing. The PQCC28 package suits surface-mount designs requiring compact footprints. Verify thermal management capabilities for the 85°C maximum operating temperature limit.

Part Context

This part belongs to the Fairchild Semiconductor analog mixed-signal IC category, specifically within drivers and interfaces. It serves as a bridge between different logic families, enabling communication between ECL-based systems and TTL-compatible components. The device is designed for digital signal processing applications requiring reliable level shifting.

Replacement Considerations

Check for updated part numbers under OnSemi nomenclature if applicable. Verify pin-to-pin compatibility with existing PCB layouts. Ensure electrical characteristics such as delay and voltage levels match system requirements.