CY74FCT245CTSOC

Overview

The CY74FCT245CTSOC 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 low-level output current of 64 mA and a high-level output current of -32 mA. Propagation delay is specified at 7 ns. It functions as a non-inverting transceiver with eight channels, suitable for surface-mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Octal bidirectional data bus architecture enabling efficient parallel data transfer between two buses.
• Three-state outputs allow direct connection to system buses without additional pull-up or pull-down components.
• TTL-compatible input and output levels ensure seamless integration with standard digital logic interfaces.

Applications

• High-performance memory mapping systems
• Clock drivers and buffer circuits
• Multiplexer configurations

Procurement Notes

Verify the specific suffix 'C' indicates commercial temperature grade (-40°C to +85°C) and 'SO' denotes the SOIC-20 package variant. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure design compatibility with 5V logic families given the specified voltage range. Cross-reference ordering information with the latest datasheet to avoid discrepancies in package dimensions or electrical characteristics.

Selection Notes

Select this component when an octal bus transceiver with TTL compatibility and moderate speed (7 ns delay) is required. The SOIC-20 package offers a balance between pin count and board space. Consider the 64 mA sink capability for driving heavier loads compared to standard CMOS devices. Evaluate thermal performance within the commercial temperature range if operating near upper limits.

Part Context

This part belongs to the CY74FCT245T family of octal bus transceivers manufactured by Texas Instruments. It is designed for high-speed data transmission applications requiring reliable signal integrity. The FCT series utilizes Fast CMOS technology to provide high-speed operation while maintaining low power consumption relative to older bipolar technologies.

Replacement Considerations

CY74FCT245ATQCT: Alternative variant in SSOP-20 package with similar electrical characteristics but different physical footprint. Verify package compatibility before substitution.