74ACTQ563PC

Latches Overview

The onsemi 74ACTQ563PC is an octal D-type latch with 3-STATE complementary outputs, utilizing 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 features buffered common Latch Enable (LE) and Output Enable (OE) inputs. Propagation delays from Dn to On are typically 1.5ns at 5.0V, while LE to On delays are typically 2.0ns. Outputs source and sink up to 24mA. It is housed in a 20-Lead Plastic Dual-In-Line Package (PDIP).

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 corrector for superior switching characteristics.
• Includes split ground bus design to enhance performance and reduce noise.
• Provides 3-STATE complementary outputs controlled by a dedicated Output Enable input.

Latches Applications

• High-speed data latching in digital systems
• Interface between microprocessors and memory or peripheral devices
• Octal storage applications requiring low noise switching

Latches Procurement Notes

Verify the specific ordering code suffix against current manufacturer documentation to confirm package type and tape/reel availability. Confirm that the PDIP variant matches the required mechanical footprint. Check for any recent product change notices regarding lead content or material composition updates. Ensure compatibility with existing board layouts before procurement.

Latches Selection Notes

Select this component when an octal latch with inverted outputs is required. It serves as a functional alternative to the ACTQ573 but provides complementary logic states. Consider the QUIET Series benefits for designs sensitive to simultaneous switching noise. Verify that the 3-STATE output capability meets the system's bus isolation requirements.

Latches Part Context

This part belongs to the 74ACT family of high-speed CMOS logic devices. The 'Q' designation indicates the inclusion of Fairchild's QUIET Series technology, which reduces power consumption and switching noise compared to standard ACT devices. It is manufactured using silicon gate CMOS technology.

Latches Replacement Considerations

The 74ACTQ573 is functionally identical except for non-inverted outputs. Standard 74ACT563 devices offer similar functionality but lack the QUIET Series noise reduction features. Verify pin-to-pin compatibility and electrical specifications when substituting.