CY74FCT244TQCTG4

Overview

The CY74FCT244TQCTG4 is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40°C to +85°C. The device utilizes CMOS logic technology and is housed in a 20-pin SSOP package. Key electrical specifications include a propagation delay of 4.1 ns at 5 V, a high-level output current of -32 mA, and a low-level output current of 64 mA. Static current consumption is specified at 200 nA, with a typical operating supply current of 3.3 mA.

Feature Summary

• Provides non-inverting buffering for eight independent input lines
• Features three-state outputs to facilitate bus-oriented architectures
• Designed for high-speed signal transmission with low propagation delay

Applications

• Bus-oriented systems requiring signal isolation
• Clock drivers for high-speed digital circuits
• Memory module data buffering

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free composition and RoHS compliance as per Texas Instruments standards. Confirm the package type corresponds to the 20-SSOP form factor. Ensure the operating temperature grade matches the required environmental conditions for the target application. Cross-reference the manufacturer part number with official TI documentation to confirm availability and revision status before procurement.

Selection Notes

Select this component when an octal buffer with three-state capability is required for 5 V CMOS applications. It is suitable for designs needing high drive strength and fast switching speeds. Consider the SSOP package constraints regarding board space and thermal management. Compare against similar FCT series devices if pinout compatibility or alternative packaging options are necessary for the specific circuit layout.

Part Context

This component belongs to the CY74FCT244T family of octal buffers and line drivers. It is part of Texas Instruments' FCT logic series, which bridges BiCMOS speed with CMOS power efficiency. The device is designed for high-performance digital systems, offering improved switching characteristics compared to standard TTL or older CMOS logic families while maintaining compatibility with 5 V logic levels.

Replacement Considerations

Publicly confirmed substitute part numbers include CY74FCT244TSOCE4 and CY74FCT244TSOCG4. These variants share identical functional specifications and pinouts, differing primarily in manufacturing revisions or specific lead-free certifications. Verify package dimensions and electrical parameters match exactly before substitution.