74HCT259D,653 8-Bit Addressable Latch | TTL-Compatible CMOS | SOIC-16 SMD

Description

The 74HCT259D,653 is a high-speed, silicon-gate CMOS 8-bit Addressable Latch. This device is particularly useful because it features TTL-compatible input levels, allowing it to interface directly with both standard 5V CMOS and TTL logic families without the need for additional level-shifting circuitry.

The IC functions as a multi-mode storage element. It utilizes three address inputs (A0–A2) to select one of eight internal latches. When in Addressable Latch Mode, the data on the “D” input is transferred to the selected latch. In Memory Mode, all outputs are locked in their current states regardless of input changes. It also includes an active-LOW master reset (MR) that can clear all eight bits simultaneously.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• 8-bit addressable latch
• TTL-compatible input threshold levels (HCT series)
• Individual addressable output control
• Two modes of operation: Addressable Latch or Memory
• Asynchronous master reset (Clear)
• Low power consumption (8 µA quiescent current)
• Wide operating temperature range (-40°C to +125°C)
• Compact SOIC-16 SMD package

Benefits

• Seamless integration in mixed-logic environments (TTL and CMOS)
• Simplifies demultiplexing tasks for control and signal routing
• Robust performance in high-temperature environments
• Master reset allows for reliable system power-on initialization

Applications

• Addressable Data Latching
• Demultiplexing and Signal Routing
• 8-Bit General Purpose Storage
• Sequential Logic Control and State Machines
• Peripheral Output Expansion

Package Includes

• 1 x 74HCT259D,653 8-bit Addressable Latch IC (SOIC-16 SMD)

Specifications