MC74LVX259D

Latches Overview

The MC74LVX259D is an 8-bit addressable latch fabricated with silicon gate CMOS technology. It operates within a supply voltage range of 2.0 V to 3.6 V and features LSTTL-compatible inputs capable of withstanding voltages up to 7.0 V, facilitating interface between 5.0 V and 3.0 V circuits. The device provides four modes: addressable latch, memory, one-of-eight decoding, and reset. Propagation delay is typically 7.0 ns at 3.3 V, with maximum quiescent current of 1.0 µA at 3.6 V.

Latches Feature Summary

• Provides high noise immunity through a three-stage internal circuit design including a buffer output.
• Features input protection allowing operation when input voltages reach 7.0 V regardless of supply voltage.
• Supports multiple operational modes including addressable data storage, memory hold, and demultiplexing.

Latches Applications

• General purpose digital system storage applications
• Interface between 5.0 V logic circuits and 3.0 V logic circuits
• Addressable latch configurations for data storage

Latches Procurement Notes

Verify the specific package suffix 'D' corresponds to the SOIC-16 configuration as defined in the ordering information table. Confirm RoHS compliance status by checking for the 'G' suffix if lead-free packaging is required, as standard parts may differ. Ensure the operating temperature range meets the application requirements of -40°C to +85°C.

Latches Selection Notes

Select this component for designs requiring an 8-bit addressable latch with low power consumption and high-speed performance. The LVX series is suitable for applications needing compatibility with both 3.3 V and 5 V logic levels due to its wide input voltage tolerance. Consider the SOIC-16 package dimensions for PCB layout constraints.

Latches Part Context

This part belongs to the onsemi LVX family of CMOS logic devices. The LVX series is characterized by low voltage operation (2.0 V to 3.6 V) and compatibility with LSTTL inputs. The MC74LVX259 specifically functions as an addressable latch, distinguishing it from standard latches or decoders within the broader logic IC portfolio.

Latches Replacement Considerations

Direct substitutes include MC74LVX259DG (SOIC-16, Pb-Free), MC74LVX259DT (TSSOP-16), and MC74LVX259M (SOEIAJ-16). Verify pinout compatibility and electrical specifications before substitution.

Latches FAQ

What are the four modes of operation for the MC74LVX259?

The device supports Addressable Latch mode, Memory mode, One-of-Eight Decoding/Demultiplexing mode, and Reset mode.

Can the MC74LVX259 interface 5.0 V circuits to 3.0 V circuits?

Yes, the input structure provides protection for voltages up to 7.0 V regardless of the supply voltage, allowing safe interfacing between 5.0 V and 3.0 V systems.