CD74FCT16823ATSM

Overview

The CD74FCT16823ATSM is a CMOS bus driver from the FCT series, housed in a 48-pin SSOP package. It features two independent functions, each handling nine bits of data with true output polarity. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of -40 °C to 85 °C. Key electrical specifications include a propagation delay of 12.5 ns and a load capacitance of 50 pF. Outputs are three-state, and the component includes clear and clock enable capabilities.

Feature Summary

• Features bus hold inputs that eliminate the need for external pull-up resistors
• Provides three-state outputs with integrated series resistors
• Includes clear and clock enable functionality for precise control

Applications

• High-speed data bus driving applications
• Clock distribution networks requiring precise timing
• Memory interface circuits with enable control requirements

Procurement Notes

Verify the specific suffix 'ATSM' against official Harris Corporation documentation to confirm the exact package variant and tape-and-reel configuration. Ensure compatibility with existing board layouts regarding the 48-pin SSOP footprint. Cross-reference the datasheet revision date to confirm the validity of the electrical parameters provided.

Selection Notes

Select this component when a nine-bit wide bus driver with independent clocking and clearing functions is required. The FCT technology offers speed comparable to LSTTL with low power consumption. Consider the 12.5 ns propagation delay and 50 pF load capability for signal integrity analysis in high-frequency designs.

Part Context

This part belongs to the Harris FCT (Fast CMOS Technology) family, designed to bridge the performance gap between standard CMOS and LSTTL logic families. The CD74FCT16823 specifically addresses applications needing wide data paths with individual bit control via clock and clear signals, distinct from simpler latch or transceiver variants.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.