74AHCT259D,118

Latches Overview

The 74AHCT259D,118 is an 8-bit addressable latch manufactured by NXP USA Inc. in a 16-lead SOIC package (SOT109-1). It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features TTL-compatible input levels and includes active LOW common reset and latch enable inputs. Propagation delays vary based on load capacitance; for instance, data-to-output delay ranges from 4.1 ns to 12.0 ns at 5.0 V with 15 pF to 50 pF loads.

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 conversion
• Random addressable data entry

Latches Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to ensure correct package type and temperature rating. Confirm RoHS compliance status as specifications may be updated. Cross-reference the manufacturer part number with authorized distributor catalogs to validate availability and authenticity before finalizing procurement orders.

Latches Selection Notes

Select this component when TTL logic compatibility is required alongside high-speed CMOS performance. Ensure the application environment stays within the specified -40 °C to +125 °C operating range. Verify that the system power supply remains stable between 4.5 V and 5.5 V to maintain signal integrity and meet static characteristic requirements.

Latches Part Context

This device belongs to the 74AHC/AHCT logic family, designed for general-purpose digital systems. It is pin-compatible with Low-power Schottky TTL (LSTTL) devices, facilitating direct replacement in legacy designs. The series complies with JEDEC standard No. 7-A, ensuring standardized electrical characteristics across the product line.

Latches Replacement Considerations

Check for equivalent parts from other manufacturers offering identical pinouts and electrical specifications. Verify that any substitute maintains the same SOIC-16 package dimensions and thermal characteristics to fit existing board layouts without modification.