CD74FCT162Q245ATMT

Overview

The CD74FCT162Q245ATMT is a dual 8-bit bus transceiver from the FCT/PCT-CMOS series, manufactured by Harris Corporation. It features non-inverting logic with true output polarity and operates on a 5 V supply. The device utilizes a 48-pin TSSOP plastic package. Key electrical specifications include a propagation delay of 4.1 ns at nominal supply voltage and a maximum output current (Iol) of 0.012 A. It supports bidirectional data counting with common control enable signals.

Feature Summary

• Dual 8-bit bidirectional bus transceiver architecture
• Non-inverting logic with true output polarity
• 3-state output capability for bus isolation
• Common control enable signal management

Applications

• High-speed data bus interfaces
• Memory-to-memory transfers
• Microprocessor-based system interconnects

Procurement Notes

Verify the manufacturer designation as Harris Corporation or its successor entities such as Intersil or Renesas, as corporate acquisitions have affected part lineage. Confirm the specific suffix 'ATMT' corresponds to the TSSOP-48 package variant. Ensure compliance requirements are checked against the 'Not Qualified' status noted in some documentation. Cross-reference datasheets from original Harris publications versus later distributor listings to ensure technical accuracy.

Selection Notes

Select this component when a dual 8-bit bidirectional interface with low propagation delay is required. The 4.1 ns delay makes it suitable for high-speed applications compared to standard FCT devices. The common control feature simplifies design by managing both directions simultaneously. Verify that the 5 V operating voltage aligns with the target system power rails and that the TSSOP-48 footprint fits the PCB layout constraints.

Part Context

This device belongs to the FCT (Fast CMOS Technology) family, designed for high-speed digital applications. It serves as a bridge between different logic domains or memory banks. The transition from Harris to Intersil and subsequently to Renesas has resulted in varied documentation sources. The 'Q' prefix often denotes specific qualification or packaging variants within the broader CD74FCT162 series.

Replacement Considerations

Check for equivalents within the CD74FCT162 series from Renesas or Intersil. Verify pin compatibility and electrical characteristics before substitution. Note that package variations (TSSOP vs SSOP) may exist for similar part numbers.