74HCT259DB,112

Latches Overview

The 74HCT259DB,112 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 an ambient temperature range from -40 °C to +125 °C. The device features four modes: addressable latch, memory, demultiplexer, and reset. It utilizes TTL input levels and includes clamp diodes on inputs. Propagation delay from data or address inputs to outputs is typically 23 ns at 4.5 V. The component is housed in a TSSOP16 package (SOT403-1) with 16 leads.

Latches Feature Summary

• Combines serial-to-parallel conversion with random addressable data entry capabilities
• Supports multiple operating modes including active HIGH decoding and memory retention
• Includes ESD protection exceeding 2000 V via Human Body Model standard
• Features common reset input for forcing all outputs LOW

Latches Applications

• Serial-to-parallel data conversion circuits
• Addressable memory storage elements
• Active HIGH 8-channel decoder applications
• Demultiplexing signal routing

Latches Procurement Notes

Verify the specific ordering suffix '112' against current Nexperia documentation to confirm the TSSOP16 package designation. Confirm that the HCT logic family aligns with system TTL interface requirements. Check for any recent product change notices regarding pinout or electrical characteristics updates before finalizing procurement specifications.

Latches Selection Notes

Select this component when TTL-compatible input levels are required for CMOS latch applications. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage range. Consider the thermal dissipation limits associated with the TSSOP16 package if high switching frequencies are anticipated. Verify that the 8-bit output capacity meets the system's parallel data handling needs.

Latches Part Context

This part belongs to the 74HCT series of high-speed Si-gate CMOS devices. It is functionally compatible with Low-power Schottky TTL standards. The device integrates eight independent latches controlled by three address lines. It serves as a bridge between serial data streams and parallel processing systems within digital logic architectures.

Latches Replacement Considerations

Public confirmed substitute part numbers include 74HCT259PW,118.