SN74HC573ADBR

Overview

The SN74HC573ADBR is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the HC logic series. It features eight independent D-type latches with three-state outputs housed in a 20-pin SSOP package. The device operates within a supply voltage range of 2 V to 6 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical characteristics include a propagation delay of 200 ns at 2 V, 40 ns at 4.5 V, and 34 ns at 6 V. Static current consumption is specified at 8 uA, while output drive capabilities provide a low-level output current of 32 mA and a high-level output current of -7.8 mA.

Feature Summary

• Octal configuration providing eight independent transparent D-type latches for parallel data storage.
• Three-state outputs enable direct connection to bus-oriented systems without additional interface hardware.
• Wide supply voltage compatibility ranging from 2 V to 6 V supports diverse logic families.
• High noise immunity and low power dissipation inherent to the HC logic family design.

Applications

• Bus-oriented architectures requiring temporary data storage and isolation.
• Clock registers for synchronizing data signals in digital systems.
• Parallel-to-serial conversion circuits utilizing latch-based shifting mechanisms.
• Input/output buffering for microprocessor-based systems.

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-20 package and reel packaging format as documented. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure supply chain sources provide valid traceability for the Texas Instruments manufacturing origin. Cross-reference the ordering part number against the latest datasheet revision to confirm pinout and electrical specifications remain unchanged.

Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing applications. The HC series offers balanced performance between speed and power consumption suitable for general-purpose logic. Verify that the 2 V to 6 V operating voltage range aligns with the system's power supply rails. Consider the SSOP-20 package dimensions for PCB layout constraints compared to alternative packages like SOIC or TSSOP.

Part Context

This component belongs to the SN74HC573 family of octal transparent D-type latches. It shares functional similarities with other variants such as SN74HC573AN (PDIP package) and SN74HC573ADWR (SOIC package). The HC series represents high-speed CMOS technology, distinguishing it from lower-speed LS or higher-speed AHC alternatives within the same logical function category.

FAQ

What is the maximum supply voltage for the SN74HC573ADBR?

The maximum operating supply voltage is 6 V.

Does the SN74HC573ADBR have inverted outputs?

No, the device features non-inverting outputs.