CY74FCT16244ATPAC

Overview

The CY74FCT16244ATPAC is a 16-bit bus driver from the FCT series, manufactured by Cypress Semiconductor. It features four functional blocks of 4-bit drivers with true output polarity and three-state outputs. The device utilizes CMOS technology and is housed in a 48-pin TSSOP package with a 0.240-inch body width. It operates within an industrial temperature range of -40°C to +85°C and supports a supply voltage of 4.5V to 5.5V. The typical propagation delay is 4.8 ns at 5V, with a load capacitance of 50 pF.

Feature Summary

• Provides high-speed 16-bit data buffering with three-state control for bus isolation
• Includes Ioff circuitry to prevent backflow current during partial power-down modes
• Features edge-rate control circuits to improve noise characteristics and reduce ground bounce
• Designed for driving high capacitive loads and low impedance backplanes

Applications

• Memory bus interface applications requiring high-speed buffering
• Clock distribution networks in high-performance systems
• Low-power bus interface solutions for portable electronics
• Driving transmission lines and high-capacitance loads

Procurement Notes

Verify the manufacturer origin as Cypress Semiconductor Corp or its successor entities like Infineon Technologies, noting that Texas Instruments also produces compatible 74FCT16244 variants. Confirm the specific suffix 'TPAC' corresponds to the TSSOP-48 package with tape-and-reel or tube packaging as specified in official datasheets. Ensure the 'A' grade designation matches the required performance specifications for your application design.

Selection Notes

Select this component when a 16-bit non-inverting buffer with three-state outputs is required for high-speed digital interfaces. The FCT logic family offers a balance of speed and power consumption suitable for 5V systems. Consider the TSSOP-48 package for space-constrained PCB layouts. Verify that the 4.8 ns propagation delay meets the timing requirements of the target bus architecture.

Part Context

This part belongs to the 74FCT16244 family of 16-bit bus drivers. It is functionally similar to other FCT series devices but distinguished by its 16-bit width and specific package configuration. The FCT series is designed to bridge the performance gap between standard TTL and advanced CMOS technologies, offering faster switching speeds with lower power dissipation than comparable LS or ALS logic families.

Replacement Considerations

The CY74FCT16244ATPVCR is a documented alternative variant from the same manufacturer family, differing primarily in package type (SSOP vs. TSSOP). Other manufacturers produce electrically equivalent parts under the 74FCT16244 designation, such as those from Texas Instruments, provided pin compatibility and electrical parameters are verified.