CY74FCT245CTSOCT

Overview

The CY74FCT245CTSOCT is an octal bus transceiver from the Texas Instruments FCT logic series, housed in a 20-pin SOIC package. It operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input and output levels. The device features three-state outputs with a propagation delay of 7 ns. It provides a low-level output current of 64 mA and a high-level output current of -32 mA. The component functions as a non-inverting transceiver with eight channels and is rated for operation between -40°C and +85°C.

Feature Summary

• Octal bidirectional data transfer capability with common direction control
• Three-state outputs isolating the bus when disabled
• TTL-compatible input and output voltage levels

Applications

• High-speed data bus architectures
• Memory-to-memory or memory-to-I/O transfers
• Clock drivers and buffer applications

Procurement Notes

Verify the specific suffix 'CTSOCT' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration. Ensure the order matches the required moisture sensitivity level and RoHS compliance status documented in the latest product specification. Cross-reference the part number with authorized distributors to validate authenticity and traceability before purchase.

Selection Notes

Select this component for designs requiring fast switching speeds and high drive strength in 5V logic systems. The FCT series offers performance comparable to LS-TTL but with CMOS power consumption characteristics. Consider the 20-SOIC package dimensions and thermal requirements during PCB layout. Verify that the system load capacitance remains within limits to maintain the specified 7 ns propagation delay.

Part Context

This device belongs to the CY74FCT245T family of octal bus transceivers. It serves as a standard interface solution for connecting microprocessors, memory devices, and peripheral controllers. The FCT technology provides a balance of speed and power efficiency suitable for general-purpose digital logic applications requiring reliable bidirectional data flow.

Replacement Considerations

Check for direct pin-compatible alternatives such as the CY74FCT245TSOC or CY74FCT245ATSOCT. Verify that any substitute maintains the same 20-SOIC footprint, voltage range, and electrical specifications. Confirm that the replacement part shares the same logic family characteristics to ensure circuit compatibility.