74ACTQ573PC

Latches Overview

The onsemi 74ACTQ573PC is an octal D-type latch featuring three-state outputs, manufactured using FACT Quiet Series technology. It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device utilizes a 20-lead Plastic Dual-In-Line (PDIP) package. Key electrical characteristics include a propagation delay of 6.5ns typ at 5.0V with 50pF load, output source/sink current of 24mA, and maximum quiescent supply current of 40µA.

Latches Feature Summary

• Utilizes FACT Quiet Series technology for guaranteed simultaneous switching noise levels and improved dynamic threshold performance.
• Features GTO output control and undershoot correction for superior signal integrity.
• Inputs and outputs are positioned on opposite sides of the package to facilitate easy interface with microprocessors.
• Provides enhanced latch-up immunity compared to standard logic families.

Latches Applications

• High-speed data latching in digital systems
• Microprocessor memory address/data bus buffering
• Portable battery-powered equipment requiring low power consumption

Latches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific ordering suffixes if tape and reel packaging is required instead of tube. Ensure the procurement documentation matches the exact part number to avoid functional discrepancies with similar variants.

Latches Selection Notes

Select this component when designing circuits requiring octal latching with high drive capability and low noise emissions. The PDIP package is suitable for through-hole mounting applications. Consider the ACTQ series specifically for 5V logic compatibility where reduced crosstalk and improved noise margins are critical design constraints.

Latches Part Context

This device belongs to the 74ACQ/ACTQ family of octal latches produced by Fairchild Semiconductor, now part of onsemi. It is functionally identical to the 74ACQ/ACTQ373 but differs in pinout orientation, placing inputs and outputs on opposite sides for easier PCB layout. The 'PC' suffix denotes the 20-lead PDIP package variant.

Latches Replacement Considerations

The datasheet does not list specific public substitute part numbers. Designers should verify pin-to-pin compatibility with other 74ACTQ573 variants from different manufacturers, ensuring voltage ranges and package dimensions match the original design requirements.