CD74FCT245ATQM

Overview

The CD74FCT245ATQM is an octal bus transceiver belonging to the FCT logic series, manufactured by Harris Corporation. It features eight bidirectional data channels with true output polarity and three-state outputs. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input levels. It is housed in a 20-pin SSOP package and functions across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Provides bidirectional data transmission through eight independent channels
• Features true output polarity for direct signal interfacing
• Incorporates three-state outputs to facilitate bus line isolation

Applications

• Memory mapping systems
• Clock drivers
• Bus-oriented architectures

Procurement Notes

Verify the manufacturer origin carefully, as Texas Instruments acquired Harris Semiconductor's logic assets. Confirm that the specific suffix 'QM' corresponds to the SSOP-20 package variant documented in official datasheets. Ensure compliance requirements are checked against the original Harris specifications.

Selection Notes

Select this component when an octal wide-bus interface is required with low power dissipation characteristics typical of the FCT family. It serves as a suitable replacement for legacy 74FCT245 devices where Harris manufacturing history is relevant. Verify pin compatibility if substituting with modern equivalents from other vendors.

Part Context

This part belongs to the Harris FCT (Fast CMOS) logic family, designed for high-speed digital applications. Harris Corporation was a prominent semiconductor manufacturer before its acquisition by Texas Instruments. The CD74 prefix indicates commercial grade temperature operation within the specified industrial range.