CY74FCT16240ATPVCT

Overview

The CY74FCT16240ATPVCT is a bus driver from the FCT series, manufactured by National Semiconductor. It features four functions, each handling four bits with inverted outputs. The device utilizes CMOS technology and is housed in a PDSO48 package. Key electrical parameters include a load capacitance of 50 pF and a maximum output current (Iol) of 0.064 A. It operates within a temperature range of -40 °C to 85 °C. The logic type is defined as a bus driver with three-state output characteristics and low-enable control.

Feature Summary

• Provides four independent 4-bit bus drivers with inverted output polarity for signal inversion and buffering.
• Features three-state outputs controlled by a low-active enable signal to manage data flow on shared buses.
• Utilizes CMOS technology to support high-speed digital applications within the FCT logic family specifications.

Applications

• High-speed data bus driving in computer systems
• Clock distribution networks requiring signal inversion
• Memory interface circuits for bidirectional data transfer

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor's semiconductor division was acquired by Texas Instruments. Ensure the part number matches the specific suffix requirements for your packaging needs. Confirm RoHS compliance status and lead times with authorized distributors, as availability may vary between original National Semiconductor stock and TI inventory. Cross-reference datasheets to ensure functional equivalence if sourcing from alternative vendors.

Selection Notes

Select this component when inverted bus driving capabilities are required for 4-bit wide data paths. The FCT series offers a balance of speed and drive strength suitable for 5V logic systems. Consider the SSOP-48 package constraints regarding board space and thermal dissipation. Verify that the input voltage levels are compatible with the driving source logic family to ensure reliable switching thresholds.

Part Context

This component belongs to the 74FCT logic family, designed for fast CMOS applications operating at 5V. The 16240 variant specifically provides quad 4-bit buffers with inverted outputs. It is part of a broader ecosystem of FCT devices used in high-performance digital systems where propagation delay and drive capability are critical factors for system timing integrity.

Replacement Considerations

Check for equivalents such as the IDT74FCT16240 or Cypress variants. Verify pin compatibility and electrical specifications before substitution. Note that some manufacturers may use different suffixes for temperature grades or packaging options.