MC74LVX259DTR2G

Latches Overview

The MC74LVX259DTR2G is an 8-bit addressable latch and 1-of-8 decoder fabricated with silicon gate CMOS technology. It operates within a supply voltage range of 2.0 V to 3.6 V and supports an operating temperature from -40°C to +85°C. The device features LSTTL-compatible inputs, allowing interface between 5.0 V circuits and 3.0 V systems. Propagation delay is typically 7.0 ns at 3.3 V, with maximum values up to 14.0 ns depending on load conditions. Quiescent supply current is limited to 1.0 µA at 25°C.

Latches Feature Summary

• Provides four operational modes: addressable latch, memory, one-of-eight decoding, and reset.
• Features high noise immunity with input protection voltages up to 7.0 V regardless of supply voltage.
• CMOS-compatible outputs ensure stable performance with high noise margins.

Latches Applications

• General purpose data storage in digital systems
• Interfacing 5.0 V logic circuits to 3.0 V logic circuits
• Addressable latch applications requiring single-bit updates

Latches Procurement Notes

Verify the specific ordering suffix DTR2G corresponds to the TSSOP-16 package and tape & reel shipping configuration. Confirm RoHS compliance and Pb-Free status as indicated by the G suffix or marking. Check for discontinuation notices regarding this specific part number before finalizing procurement plans.

Latches Selection Notes

Select this component when low power consumption and high-speed operation are required for 8-bit data latching. Ensure the application voltage remains within the 2.0 V to 3.6 V recommended operating range. Consider the TSSOP-16 package constraints for PCB layout and thermal management during selection.

Latches Part Context

This device belongs to the LVX series of CMOS logic components designed for low-voltage applications. It serves as a fundamental building block for sequential logic circuits where individual bit storage and selective updating are necessary without affecting other stored states.

Latches Replacement Considerations

Consult official documentation for discontinued devices. Verify pin compatibility and electrical characteristics against alternative addressable latches if sourcing new inventory is not feasible.

Latches FAQ

How does the device handle multiple address changes?

Changing more than one bit of the address simultaneously may impose a transient wrong address. This should only be performed while the device is in memory mode to prevent unintended data writes.

What is the input voltage tolerance?

The input structure provides protection when voltages up to 7.0 V are applied, regardless of the supply voltage, facilitating safe interfacing with higher voltage logic levels.