SN74ALS573CNSRE4

Overview

The SN74ALS573CNSRE4 is an octal D-type transparent latch with three-state outputs manufactured by Texas Instruments. It belongs to the ALS logic series and features a 20-SOIC package. Key electrical parameters include a propagation delay of 14 ns, low-level output current of 32 mA, and high-level output current of -2.6 mA. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a working temperature range from 0°C to +70°C.

Feature Summary

• Octal D-type transparent latch architecture with tri-state outputs
• ALS logic series for high-speed performance
• Non-inverting polarity configuration

Applications

• Registering fast-moving data
• Performing temporary storage operations
• Driving bus-oriented memories

Procurement Notes

Verify the specific suffix RE4 indicates tape and reel packaging when ordering. Confirm the NS package code corresponds to the 20-SOIC form factor required for your PCB layout. Ensure the C grade meets the commercial temperature requirements of your design environment before finalizing procurement.

Selection Notes

Select this component when an octal latch with tri-state capability is required in a surface-mount SOIC package. The ALS series offers a balance of speed and power consumption suitable for general digital logic applications. Verify that the 32 mA sink current meets the load requirements of the connected circuitry.

Part Context

This part is part of the SN74ALS573 family of octal latches. It serves as a digital storage element in logic circuits. The RE4 suffix typically denotes reel packaging, distinguishing it from tube-packaged variants like the CN or CDBR versions while maintaining identical logical functionality.

Replacement Considerations

Direct substitutes include other SN74ALS573 variants such as SN74ALS573CN or SN74ALS573CDBR, provided the package type difference is accommodated. Cross-referencing with equivalent parts from other manufacturers requires verifying pin compatibility and electrical specifications.