74ABT573ADB,118

Overview

The Nexperia 74ABT573ADB,118 is an octal transparent latch belonging to the ABT logic series. It features eight D-type transparent latches with three-state outputs in a 20-pin SSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a high-level output current of -32 mA. Key electrical parameters include a propagation delay of 3.3 ns and a maximum static current of 30 mA. It functions as a non-inverting circuit suitable for TTL applications.

Feature Summary

• Octal configuration providing eight independent transparent latch channels
• Three-state outputs enabling direct bus system interfacing
• High-speed performance characterized by low propagation delay
• Robust drive capability supporting heavy capacitive loads

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register storage
• Clock domain crossing synchronization buffers
• High-speed data acquisition systems

Procurement Notes

This component is scheduled for obsolescence and will be discontinued by the manufacturer. Verify end-of-life status before finalizing designs. Current availability may be limited or restricted depending on regional distributor inventory. Confirm alternative sourcing options or replacement strategies early in the procurement process to mitigate supply chain risks associated with discontinued parts.

Selection Notes

Select this part for applications requiring high-speed octal latching with 5V operation. Ensure the design accommodates the 30 mA static current consumption. Compare against AHCT or ALVC series variants if lower power consumption or different voltage levels are required. Verify that the SSOP-20 footprint matches the PCB layout constraints and thermal requirements of the target assembly process.

Part Context

Part of the 74ABT family offering high-speed CMOS technology with TTL-compatible inputs. Designed for demanding digital logic applications requiring fast switching speeds and strong drive currents. The ABT series bridges the gap between standard logic speed and advanced low-voltage technologies, maintaining compatibility with existing 5V infrastructure while improving performance metrics.

Replacement Considerations

Public confirmed substitute part numbers: None identified.