SN74ALS573CDBR

Overview

The SN74ALS573CDBR is an octal transparent D-type latch manufactured by Texas Instruments within the ALS logic series. It features eight non-inverting outputs and operates with a supply voltage range of 4.5 V to 5.5 V. The device exhibits a propagation delay of 14 ns, with a low-level output current capability of 32 mA and a high-level output current of -2.6 mA. It functions within a temperature range of 0°C to +70°C and is housed in an SSOP-20 surface-mount package.

Feature Summary

• Provides transparent latching functionality for eight D-type inputs.

Applications

• Registering data in digital systems
• Driving bus lines
• Memory interface circuits

Procurement Notes

Verify the specific ordering suffix CDBR to confirm the SSOP-20 package type and tape-and-reel packaging configuration. Ensure the component meets the required operating temperature range of 0°C to +70°C for the intended application environment. Confirm RoHS compliance status through official manufacturer documentation prior to integration.

Selection Notes

Select this component when high-speed latching is required within standard 5V logic systems. The ALS series offers faster performance compared to standard LS logic while maintaining compatible pinouts. Verify that the SSOP-20 package dimensions fit the available PCB footprint and that the thermal characteristics suit the design constraints.

Part Context

This part belongs to the Texas Instruments SN74ALS573 family of octal transparent latches. It serves as a high-speed alternative to lower-performance logic families, designed for applications requiring rapid data storage and transfer. The device integrates eight independent D-type latches with three-state outputs into a single integrated circuit.

Replacement Considerations

SN74ALS573CDWR is listed as a similar replacement option from Texas Instruments.