CD74FCT2245CTM

Overview

The CD74FCT2245CTM is an octal bus transceiver from the FCT logic series, manufactured by Harris Corporation. It features a single function with eight bits per element and true output polarity. The device utilizes a PDSO20 package with twenty terminals. Electrical characteristics include a supply voltage range of 4.75 V to 5.25 V and an operating temperature range from -40 °C to 85 °C. The outputs are three-state with series resistors, and the component supports bidirectional data transmission controlled by direction signals.

Feature Summary

• Octal bus transceiver architecture with true output polarity
• Three-state outputs integrated with series resistors
• Direction control capability for bidirectional data flow

Applications

• Bidirectional data bus interfaces in embedded systems
• Memory bus expansion circuits
• General-purpose digital signal routing

Procurement Notes

Verify the manufacturer designation as Harris Corporation or its successors, as original production may have ceased. Confirm the specific suffix CTM corresponds to the PDSO20 plastic dual small-outline package. Ensure compliance requirements match the era of manufacture, noting potential lead-based content indicated by historical datasheets. Cross-reference part numbers with current distributors for availability status.

Selection Notes

Select this component when an octal, non-inverting bus transceiver with built-in series resistors is required. The FCT series offers high-speed performance suitable for 5V logic systems. The PDSO20 package provides a compact surface-mount solution. Verify that the direction control interface aligns with system design needs for bidirectional communication.

Part Context

This component belongs to the CD74FCT2245 family of bus transceivers. It shares functional similarities with other FCT series devices but is distinct in its octal configuration and specific package type. The device was originally produced by Harris Semiconductor before corporate acquisitions affected product lines. It serves as a standard interface solution for parallel data buses in legacy and industrial applications.

Replacement Considerations

Public confirmed substitute part numbers include CY74FCT2245TSOCT and CD74FCT2245ATM96. These alternatives offer similar octal bus transceiver functionality within the FCT series. Verify pin compatibility and electrical specifications before substitution.