74HCT259N,652

Latches Overview

The 74HCT259N,652 is an 8-bit addressable latch manufactured by Nexperia. It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features four modes: addressable latch, memory, demultiplexer/decoder, and reset. It includes inputs with clamp diodes for interfacing voltages exceeding VCC. Propagation delay (D to Qn) is typically 23 ns at 4.5 V. Input capacitance is 3.5 pF.

Latches Feature Summary

• Combines demultiplexer functionality with an 8-bit latch
• Supports serial-to-parallel data conversion
• Features random addressable data entry via A0-A2 inputs
• Includes common active LOW master reset input

Latches Applications

• Addressable latch circuits
• Demultiplexing applications
• Serial-to-parallel data conversion
• Active HIGH decoding

Latches Procurement Notes

Verify the manufacturer designation on the component marking against official Nexperia documentation. Confirm the package type matches the required footprint. Ensure the operating temperature range meets system requirements. Check for specific ordering suffixes that may indicate variations in packaging or tape-and-reel specifications.

Latches Selection Notes

Select this component when TTL-compatible logic levels are required for CMOS systems. The HCT series ensures compatibility with standard TTL outputs. Consider the wide supply voltage tolerance if power fluctuations are expected. Verify pinout compatibility if replacing older NXP designs.

Latches Part Context

This part belongs to the 74HCT family of high-speed silicon-gate CMOS devices. It is designed to be pin-compatible with low-power Schottky TTL (LSTTL). The device complies with JEDEC standards JESD8C and JESD7A. It offers robust ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Latches Replacement Considerations

The 74HC259N,652 serves as a CMOS-level compatible alternative. Other manufacturers produce equivalent 8-bit addressable latches such as the DM9334 or HD74AC259. Verify logic level compatibility before substitution.