SN74HCT573DBRG4

Latches Overview

The SN74HCT573DBRG4 is an octal transparent D-type latch manufactured by Texas Instruments. It features eight D-type latches with three-state outputs, designed for bus-oriented applications. The device operates within a supply voltage range of 4.5 V to 5.5 V and utilizes HCT logic technology to ensure compatibility with TTL inputs. It is housed in a 20-pin SSOP package.

Latches Feature Summary

• Provides eight independent transparent D-type latches for data storage
• Features three-state outputs suitable for direct bus driving
• Ensures input compatibility with standard TTL voltage levels

Latches Applications

• Buffer registers
• I/O ports
• Bidirectional bus drivers
• Working registers

Latches Procurement Notes

Verify the specific suffix 'G4' against current manufacturer documentation to confirm RoHS compliance status and lead time requirements. Confirm that the SSOP-20 package matches the target PCB footprint. Check for any obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus systems. Ensure the design supports the 4.5 V to 5.5 V operating range. Verify that the HCT series speed and power characteristics meet the system's timing and thermal constraints compared to HC or AHCT alternatives.

Latches Part Context

This part belongs to the SN74HCT573 family of octal transparent D-type latches. It shares functional similarities with other devices in the 74HCT series but differs in package type and specific manufacturing revisions indicated by the suffix. It serves as a digital storage element in logic circuits requiring parallel-to-serial conversion or data holding.

Latches Replacement Considerations

SN74HCT573DBR is the non-RoHS compliant predecessor. SN74HCT573NSRG4 offers the same function in a SOIC-20 package.