74AHCT259PW,112

Latches Overview

The 74AHCT259PW,112 is an 8-bit addressable latch manufactured by NXP USA Inc. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features TTL-compatible input levels and provides active HIGH outputs (Q0 to Q7). It incorporates three address inputs (A0 to A2), a data input (D), an active LOW latch enable (LE), and an active LOW common reset (MR). The component is specified for ambient temperatures between -40 °C and +125 °C.

Latches Feature Summary

• Combines demultiplexer and 8-bit latch functionality with serial-to-parallel capability
• All inputs feature Schmitt-trigger actions for noise immunity
• Inputs accept voltages higher than VCC via clamp diodes
• Provides random addressable data entry and common reset

Latches Applications

• General purpose storage applications in digital systems
• Serial-to-parallel data conversion circuits
• Active HIGH 3-to-8 decoder configurations
• Multiplexer function implementations

Latches Procurement Notes

Verify the specific ordering suffix ',112' corresponds to the TSSOP16 package variant when sourcing. Confirm that the TTL input level requirement aligns with the system logic family. Ensure the operating temperature range of -40 °C to +125 °C meets the environmental specifications of the target application design.

Latches Selection Notes

Select this component when an 8-bit addressable latch with TTL-compatible inputs is required. The AHCT series ensures compatibility with standard TTL logic families while offering high-speed CMOS performance. Verify that the TSSOP16 package dimensions fit the available PCB footprint constraints.

Latches Part Context

This part belongs to the 74AHC/AHCT logic family, which are high-speed Si-gate CMOS devices pin-compatible with Low-power Schottky TTL (LSTTL). They comply with JEDEC standard No. 7-A. The 74AHCT259 specifically integrates demultiplexing and latching functions into a single multifunctional unit for efficient digital system design.

Latches Replacement Considerations

74AHCT259D