74HCT259PW-Q100,11

Latches Overview

The Nexperia 74HCT259PW-Q100,11 is an 8-bit addressable latch in the 74HCT logic family, housed in a TSSOP16 (SOT403-1) package. 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-compatible input levels and includes four operational modes: addressable latch, memory, demultiplexer/decoder, and reset. It is qualified to AEC-Q100 Grade 1 standards for automotive applications.

Latches Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Supports four distinct operating modes including addressable latching and demultiplexing
• TTL-compatible input voltage levels for direct interfacing with standard logic
• Integrated clamp diodes on inputs to allow operation with voltages exceeding VCC

Latches Applications

• Automotive electronic systems requiring robust latch functionality
• Serial-to-parallel data conversion circuits
• Addressable storage and random data entry applications
• Active HIGH decoding or demultiplexing tasks

Latches Procurement Notes

Verify that the specific part number suffix matches the required package type and temperature grade. Confirm AEC-Q100 Grade 1 qualification status if automotive reliability is mandatory. Ensure input voltage levels align with the HCT family specifications rather than HC variants. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement.

Latches Selection Notes

Select this component when TTL-level compatibility is required alongside addressable latch capabilities. The HCT series ensures proper voltage thresholds for legacy TTL interfaces while maintaining CMOS performance. Consider the TSSOP16 package for space-constrained surface-mount designs. Verify that the 4.5 V to 5.5 V supply range fits the system power architecture.

Latches Part Context

This device belongs to the Nexperia 74HC/HCT259-Q100 family of 8-bit addressable latches. It shares functional similarities with other members of the series but differs in input logic levels; the HCT variant specifically targets TTL compatibility. The Q100 designation indicates automotive-grade qualification, distinguishing it from standard commercial versions.

Latches Replacement Considerations

Direct substitutes include the 74HC259PW-Q100,11, though input voltage levels differ significantly. Other compatible packages within the same family are the SO16 (74HCT259D-Q100) and DHVQFN16 (74HCT259BQ-Q100). Ensure any replacement maintains the TSSOP16 footprint if board space is constrained.