CD74FCT162374ATSM

Overview

The CD74FCT162374ATSM is a 16-bit D-type flip-flop manufactured by Harris Corporation, belonging to the FCT/PCT-CMOS logic family. It features a single functional block with true outputs and a 3-state output capability. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a nominal voltage of 5 V. It exhibits a propagation delay of 6.5 ns at nominal supply conditions with a 50 pF load capacitance. The component is housed in a 48-pin TSSOP plastic package and supports surface-mount installation. It functions reliably across an industrial temperature range from -40 °C to 85 °C.

Feature Summary

• Provides 16-bit data storage via D-type flip-flop architecture with positive-edge triggering.
• Features 3-state outputs allowing for bus-oriented memory applications without external pull-ups.
• Incorporates bus-hold input circuitry to eliminate the need for external pull-up resistors on unused inputs.

Applications

• Bus-oriented memory implementations
• Offset buffers and registers
• Clocked data registers

Procurement Notes

Verify the manufacturer origin carefully, as Harris Corporation's semiconductor assets were acquired by Renesas Electronics. Confirm whether the specific unit is an original Harris production or a Renesas continuation. Check RoHS compliance status, as older Harris batches may not meet current environmental standards. Ensure the TSSOP-48 package variant matches the design requirements exactly.

Selection Notes

Select this component when a high-density 16-bit register with 3-state outputs is required in a compact surface-mount form factor. The FCT series offers faster switching speeds compared to standard HC logic. Consider the 6.5 ns propagation delay for timing constraints. Verify that the 4.5 V to 5.5 V operating range aligns with the system power supply. The bus-hold feature simplifies PCB layout by removing external pull-up components.

Part Context

This part belongs to the CD74FCT162374 series, which integrates 16-bit D-type flip-flops with 3-state outputs. The 'A' suffix typically denotes specific manufacturing revisions or packaging variations within the FCT CMOS family. Originally produced by Harris Semiconductor, these devices are now managed under Renesas Electronics following corporate acquisitions. The series is designed for high-speed digital systems requiring reliable data latching and bus driving capabilities.

Replacement Considerations

Public confirmed substitute part numbers: SN74ABT16374ADGGR (Texas Instruments). Verify pinout compatibility and electrical characteristics before substitution.

FAQ

Does the CD74FCT162374ATSM require external pull-up resistors?

No, the device incorporates bus-hold input circuitry that eliminates the need for external pull-up resistors on unused inputs.

What is the maximum operating temperature for this component?

The maximum operating temperature is 85 °C.