CY74FCT2244ATQCTE4

Overview

The CY74FCT2244ATQCTE4 is an octal buffer and line driver manufactured by Texas Instruments. It belongs to the FCT logic series and utilizes CMOS technology. The device features eight non-inverting inputs and three-state outputs, housed in a 20-pin QSOP package. It operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 4.6 ns at 5 V, high-level output current of -15 mA, and low-level output current of 12 mA. Static current is specified at 100 nA, with a maximum operating temperature of +85 °C.

Feature Summary

• Provides octal buffering with non-inverting signal transmission for data integrity.
• Features three-state outputs to facilitate bus-oriented memory and circuit driving.
• Incorporates Schmitt trigger inputs on all channels to accept slow-rise-time signals.

Applications

• Bus-oriented memory and register driving
• Clock drivers
• Buffering of bus signals

Procurement Notes

Verify the specific suffix 'E4' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the QSOP-20 package dimensions match the target PCB footprint requirements. Ensure the operating temperature range meets the environmental specifications of the final assembly. Cross-reference the datasheet revision date to ensure compatibility with design constraints.

Selection Notes

Select this component when an octal buffer with three-state capability is required for 5 V systems. The FCT series offers speed comparable to LS TTL with CMOS power consumption. Verify that the input voltage levels are compatible with the driving source. Consider the thermal performance of the QSOP package for the intended application environment.

Part Context

This part is part of the CY74FCT2244T family of octal buffers. It serves as a standard interface component in digital logic designs requiring signal isolation or amplification. The E4 suffix typically denotes environmental compliance. It is distinct from transceivers like the 2245, which include bidirectional control and damping resistors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Verify pin-to-pin compatibility with other FCT2244 variants before substitution.