74AHCT259D-Q100J

Latches Overview

The 74AHCT259D-Q100J is an 8-bit addressable latch manufactured by NXP USA Inc. in a 16-lead SO plastic small outline package (SOT109-1). It operates with a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL input levels, balanced propagation delays, and Schmitt-trigger actions on all inputs. It includes ESD protection exceeding specified HBM and MM standards.

Latches Feature Summary

• Combines demultiplexer and 8-bit latch functionality
• Serial-to-parallel capability with random addressable data entry
• Outputs from each storage bit are individually available
• Inputs accept voltages higher than VCC

Latches Applications

• General purpose digital system storage
• Automotive applications requiring AEC-Q100 Grade 1 qualification
• 3-to-8 active HIGH decoding or demultiplexing
• Addressable latch mode for single-line data storage

Latches Procurement Notes

Verify the specific ordering suffix 'D' corresponds to the SO16 package variant when sourcing. Confirm that the automotive grade Q100 qualification meets project requirements. Check current availability as lead times may vary. Ensure design compatibility with the 4.5 V to 5.5 V supply voltage range specified for the AHCT series.

Latches Selection Notes

Select this component for designs requiring an 8-bit addressable latch with TTL-compatible inputs. The AHCT variant ensures compatibility with standard TTL logic levels while operating at CMOS speeds. Consider the SO16 package dimensions for PCB layout constraints. Verify thermal dissipation requirements if operating near maximum temperature limits.

Latches Part Context

This part belongs to the 74AHC/AHCT259-Q100 family of high-speed Si-gate CMOS devices. It is pin compatible with Low-power Schottky TTL (LSTTL) and complies with JEDEC standard No. 7-A. The device integrates a 3-to-8 decoder and multiplexer function with active HIGH outputs alongside the latch capabilities.

Latches Replacement Considerations

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