74AHCT259PW,118

Latches Overview

The 74AHCT259PW,118 is an 8-bit addressable latch manufactured by NXP USA Inc. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible input levels. The device provides balanced propagation delays with typical values ranging from 3.9 ns to 10.5 ns depending on load capacitance and specific signal paths. It includes Schmitt-trigger inputs for noise immunity and supports an operating temperature range from -40 °C to +125 °C.

Latches Feature Summary

• Combines demultiplexer and 8-bit latch functionality
• All inputs have Schmitt-trigger actions
• Inputs accept voltages higher than VCC
• Easily expandable architecture

Latches Applications

• General purpose storage applications in digital systems
• Serial-to-parallel data conversion
• Random addressable data entry

Latches Procurement Notes

Verify the manufacturer part number 74AHCT259PW,118 against official NXP documentation to ensure authenticity. Confirm that the TSSOP16 package variant matches the required board layout specifications. Check for any recent Product Change Notifications (PCN) regarding labeling or assembly updates before finalizing procurement orders.

Latches Selection Notes

Select this component when TTL logic compatibility is required alongside high-speed CMOS performance. Ensure the design accommodates the 4.5 V to 5.5 V supply voltage constraint. Consider the TSSOP16 package dimensions for PCB footprint planning and verify thermal dissipation requirements for the specified ambient temperature range.

Latches Part Context

This device belongs to the 74AHC/AHCT family of high-speed Si-gate CMOS logic devices. It is pin compatible with Low-power Schottky TTL (LSTTL). The AHCT variant specifically ensures compatibility with standard TTL input voltage levels while maintaining CMOS output drive capabilities.

Latches Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.