74ACQ573MTCX

Latches Overview

The onsemi 74ACQ573MTCX is an octal D-type latch with 3-STATE outputs, utilizing Quiet Series technology for superior noise performance. It features buffered common Latch Enable (LE) and Output Enable (OE) inputs. The device operates within a supply voltage range of 2.0V to 6.0V. Key electrical parameters include propagation delays of up to 12.5ns at 5.0V, output drive capabilities of ±24mA, and maximum quiescent supply current of 40µA. It is housed in a 20-Lead Thin Shrink Small Outline Package (TSSOP).

Latches Feature Summary

• Utilizes FACT Quiet Series technology including GTO output control and undershoot corrector for improved dynamic threshold performance.
• Features inputs and outputs on opposite sides of the package to facilitate easy interface with microprocessors.
• Provides guaranteed simultaneous switching noise levels and pin-to-pin skew AC performance.
• Offers reduced ICC and IOZ values compared to standard equivalents.

Latches Applications

• High-speed data latching in digital systems
• Microprocessor interface circuits
• Bus driver applications requiring 3-STATE control

Latches Procurement Notes

Verify that the specific ordering code matches the required package variant, as the base part number covers multiple packages. Confirm RoHS compliance status through official manufacturer documentation or distributor specifications prior to procurement. Ensure the suffix 'X' is correctly applied if tape and reel packaging is required for automated assembly processes.

Latches Selection Notes

Select this component when low noise and high speed are critical requirements for octal latch applications. The TSSOP package is suitable for space-constrained designs. Consider the operating voltage range and ensure it aligns with the system's power supply rails. Verify thermal management needs based on the specified junction temperature limits and ambient operating conditions.

Latches Part Context

This component belongs to the 74ACQ/ACTQ series of logic ICs, specifically designed as octal latches. It is functionally identical to the 74ACQ373 but differs in pinout configuration, placing inputs and outputs on opposite sides. The series leverages Fairchild's Quiet Series technology to minimize switching noise and improve signal integrity in high-density circuit designs.

Latches Replacement Considerations

Direct substitutes include other 74ACQ573 variants from different manufacturers or legacy versions like the 74AC573. When replacing, verify package compatibility (TSSOP-20) and electrical characteristics such as propagation delay and output drive current. Ensure the replacement supports the required 3-STATE functionality and operating voltage range.