CD74FCT573DTM

Latches Overview

The CD74FCT573DTM is an octal transparent D-type latch manufactured by Harris Corporation. It features three-state outputs and operates within a supply voltage range of 4.5V to 5.5V. The device utilizes Fast CMOS (FCT) technology, providing high-speed performance with low power consumption. It is housed in a 20-SSOP surface-mount package and supports a wide operating temperature range from -55°C to 125°C.

Latches Feature Summary

• Octal transparent D-type latch architecture with independent data inputs
• Three-state output capability for effective bus line driving
• Fast CMOS technology ensuring high speed and low power consumption
• Direct compatibility with LSTTL logic input levels

Latches Applications

• High-speed data latching in digital communication systems
• Bus driver applications requiring tri-state control
• Memory address buffering in computer architectures
• Parallel-to-serial data conversion circuits

Latches Procurement Notes

Verify the manufacturer origin as Harris Corporation or its successors, noting that production may have transitioned to Intersil or Renesas. Confirm the specific suffix 'DTM' corresponds to the 20-SSOP package variant. Check RoHS compliance status, as older Harris FCT components may not meet current environmental standards. Ensure the component is sourced from authorized distributors to avoid counterfeit devices.

Latches Selection Notes

Select this component when an octal latch with tri-state outputs is required for high-speed digital interfaces. It serves as a functional equivalent to standard 74LS573 but offers superior speed and lower power dissipation due to FCT technology. Consider the 20-SSOP package constraints for PCB layout and ensure the system operates within the specified 4.5V to 5.5V voltage range for optimal performance.

Latches Part Context

The CD74FCT573DTM belongs to the Harris FCT series of high-speed CMOS logic devices. This series was designed to bridge the performance gap between standard TTL and CMOS technologies. Harris Corporation was a prominent manufacturer of such logic ICs before merging into Intersil, which was later acquired by Renesas Electronics. These components are widely recognized for their reliability in industrial and commercial applications.

Latches Replacement Considerations

Compatible substitutes include the SN74FCT573ATQ from Texas Instruments and the MM74FCT573TM from onsemi. Verify pinout compatibility and electrical specifications before substitution. Note that some equivalents may differ in package type or operating temperature range.