MM74HC573N

Latches Overview

The MM74HC573N is a high-speed octal D-type latch manufactured by onsemi using advanced silicon-gate P-well CMOS technology. It features three-state outputs and operates within a supply voltage range of 2 V to 6 V. The device provides low power consumption, high noise immunity, and the ability to drive 15 LS-TTL loads. Key electrical characteristics include a typical propagation delay of 16 ns at 5 V with 45 pF load, maximum quiescent current of 160 µA, and input current of 1 µA maximum.

Latches Feature Summary

• Octal D-type latching functionality with transparent data transfer when latch enable is active
• Three-state output capability for effective bus line interfacing in organized systems
• High noise immunity and robust drive strength compatible with standard logic families

Latches Applications

• Bus-oriented system interfacing
• Parallel-to-serial data conversion circuits
• Memory address latching applications

Latches Procurement Notes

Verify package configuration against datasheet specifications, as suffixes indicate specific physical form factors such as SOIC or TSSOP. Confirm RoHS compliance status and lead-free marking requirements for assembly processes. Ensure operating temperature ranges align with environmental constraints before finalizing component selection.

Latches Selection Notes

Select this component for designs requiring parallel data storage with tri-state control. Evaluate propagation delays relative to system clock speeds to ensure timing margins are met. Consider the wide voltage operating range for flexibility in power supply design across different logic levels.

Latches Part Context

This device belongs to the 74HC series of logic integrated circuits, which are designed to be speed, function, and pinout compatible with the standard 74LS logic family. The MM74HC573 specifically addresses the need for multi-bit storage elements that can interface directly with external buses without additional buffering components.

Latches Replacement Considerations

Compatible replacements include MC74HC573 and MM74HCT573 variants from onsemi. Verify pin compatibility and electrical parameters when substituting with equivalent parts from other manufacturers.