CY74FCT573CTQCT

Latches Overview

The CY74FCT573CTQCT is an octal D-type transparent latch manufactured by Texas Instruments, belonging to the FCT logic series. It features a single circuit with eight output lines housed in a 20-pin QSOP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 4.7 ns at 5 V. It provides high drive capability with low-level and high-level output currents of 32 mA each. The component functions as a non-inverting latch with a working power current of 200 uA and is rated for operation between -40°C and +85°C.

Latches Feature Summary

• Octal D-type transparent latch architecture providing eight-bit data storage capability
• High-drive three-state outputs capable of sourcing and sinking 32 mA
• Fast switching performance with 4.7 ns propagation delay at 5 V
• CMOS construction ensuring low static power consumption

Latches Applications

• Parallel-to-serial data conversion interfaces
• Registering bus signals in high-speed digital systems
• Memory address latching applications
• I/O port expansion circuits

Latches Procurement Notes

Verify the manufacturer designation on official documentation, as the part number is associated with Texas Instruments despite the query input. Confirm the specific package variant matches the QSOP-20 form factor required for your design. Ensure compliance with RoHS standards and check moisture sensitivity levels before procurement to prevent handling damage during assembly processes.

Latches Selection Notes

Select this component when an octal transparent latch with high drive strength is required for bus interfacing. The FCT series offers compatibility with standard TTL and CMOS logic families. Consider the 4.7 ns delay and 32 mA output current for driving moderate capacitive loads. Verify that the operating temperature range meets the environmental requirements of the target application.

Latches Part Context

This component is part of the broader 74FCT573 family of octal D-type latches. Variants exist in different packages such as SOIC and DIP, and from manufacturers including Cypress and Renesas. The CY74FCT573CTQCT specifically denotes the Texas Instruments version in a 20-pin QSOP package, maintaining functional equivalence with other industry-standard implementations while adhering to specific pinout and electrical characteristics defined by the datasheet.

Latches Replacement Considerations

Public confirmed substitute part numbers include CY74FCT573TQCT and CY74FCT573ATQCT. These alternatives share the same logical function and pin configuration but may differ in speed grades or specific electrical parameters. Verify package compatibility and operating conditions before substitution.