SN74HC573APWR

Overview

The SN74HC573APWR is an octal transparent D-type latch with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and features low static current consumption of 8 uA. The device provides a low-level output current of 32 mA and a high-level output current of -7.8 mA. Propagation delay varies from 200 ns at 2 V to 34 ns at 6 V. It is housed in a TSSOP-20 package and supports surface mount installation. The component functions as a non-inverting logic circuit suitable for bus-oriented applications.

Feature Summary

• Octal transparent D-type latch architecture with eight independent data paths
• Three-state outputs enabling direct connection to system buses without external drivers
• Low static current consumption characteristic of HC logic technology
• Wide operating supply voltage range supporting diverse power environments

Applications

• Bus-oriented memory mapping
• Clock buffering
• Registering I/O devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to confirm package type and tape-and-reel specifications. Ensure the procurement channel sources genuine Texas Instruments components to guarantee electrical parameter compliance. Check for RoHS compliance status if required by assembly standards. Confirm lead times and availability directly with authorized distributors prior to finalizing orders.

Selection Notes

Select this component when an octal latch with three-state outputs is required for bus interfacing. The HC series offers a balance of speed and low power consumption suitable for general-purpose digital systems. Consider the TSSOP-20 package dimensions for PCB layout constraints. Verify that the 2 V to 6 V supply range aligns with the target system voltage levels.

Part Context

This part belongs to the SN74HC573A family of octal transparent D-type latches. It is designed for high-speed digital applications requiring multiple parallel data storage elements. The device integrates eight D-type latches with common clock and latch enable inputs, providing efficient data management in complex logic circuits.

Replacement Considerations

SN74HC573ADBR

FAQ

What is the maximum propagation delay specified for this device?

The maximum propagation delay is 200 ns at a supply voltage of 2 V.

Does the SN74HC573APWR support direct bus connections?

Yes, the three-state outputs allow direct connection to system buses without requiring additional interface drivers.