CD74FCT245CTQM

Overview

The CD74FCT245CTQM is an octal bus transceiver from the FCT series, manufactured by Harris Corporation. It features non-inverting logic with three-state outputs in a 20-lead QSOP package. The device supports high-speed data transfer with an output drive current of 32mA in the high state and 64mA in the low state. It operates within a standard voltage range typical for CMOS logic families.

Feature Summary

• Provides bidirectional data transmission via eight independent channels
• Features three-state outputs to facilitate bus-oriented systems
• Delivers robust noise margins through high drive currents
• Ensures fast transition times critical for high-speed applications

Applications

• Bus-oriented memory systems
• High-speed data transmission lines
• Clock drivers and buffer circuits

Procurement Notes

Verify the specific suffix CTQM confirms the QSOP package type and tape-and-reel packaging configuration. Confirm RoHS compliance status as historical Harris documentation may indicate non-compliance depending on production date. Ensure the supplier provides valid traceability for this discontinued or legacy component series.

Selection Notes

Select this component when an octal, non-inverting transceiver with three-state capability is required. The high drive current specifications make it suitable for driving heavy capacitive loads or long traces. Compare against similar FCT series devices if pin compatibility or specific drive strength variations are needed for the design.

Part Context

This part belongs to the Harris FCT (Fast CMOS) logic family, designed for high-speed performance comparable to LS-TTL but with CMOS power consumption. Harris Corporation was acquired by L3Harris Technologies in 2019, affecting the lineage and support status of these legacy semiconductor components.

Replacement Considerations

Check for direct pin-compatible equivalents from Microchip or other manufacturers offering modern FCT-series replacements. Verify that substitute parts maintain the same 32mA/64mA drive current capabilities and QSOP footprint requirements.