CY74FCT2245TSOCTG4

Overview

The CY74FCT2245TSOCTG4 is an octal bus transceiver manufactured by Texas Instruments, belonging to the FCT logic series. It features tri-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device supports TTL input and output levels and provides a propagation delay of 7 ns. It offers a low-level output current of 12 mA and a high-level output current of -15 mA. Designed for surface mount applications, it is housed in a 20-pin SOIC package and functions across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Octal bidirectional data transfer capability with non-inverting polarity
• Tri-state outputs allowing effective bus line isolation
• Integrated series damping resistors for signal integrity management

Applications

• High-speed data bus architectures requiring eight-bit parallel transmission
• Memory module interfacing in computing systems
• Industrial control systems utilizing standard logic interfaces

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per manufacturer standards. Confirm the 'CT' designation corresponds to cut-tape packaging rather than reel quantities when sourcing. Ensure the SOIC-20 footprint matches the target PCB layout dimensions. Cross-reference the datasheet revision history to confirm pinout consistency with existing designs.

Selection Notes

Select this component for designs requiring robust octal bus driving with moderate speed capabilities. The FCT series ensures compatibility with standard TTL logic families while offering improved switching speeds compared to older LS variants. Consider the thermal performance of the SOIC package under continuous load conditions. Evaluate the need for series damping resistors if signal reflection issues are anticipated on long traces.

Part Context

This part belongs to the CY74FCT2245T family of octal bus transceivers. It serves as a bridge between microprocessors and peripheral devices or memory banks. The G4 suffix typically denotes environmental compliance modifications without altering electrical functionality. It complements other FCT logic components like latches and buffers in complex digital systems.

Replacement Considerations

CY74FCT2245ATSOCG4 is a documented equivalent variant within the same product family.