74ABT573CPC

Latches Overview

The onsemi 74ABT573CPC is an octal D-type latch with 3-state outputs, manufactured by Fairchild Semiconductor. It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device features a propagation delay of up to 5.0 ns at VCC = 5.0V with a 50pF load. Output drive capabilities include a sink current of 64mA and a source current of 32mA. It utilizes a 20-Lead Small Outline Integrated Circuit (SOIC) package conforming to JEDEC MS-013 standards.

Latches Feature Summary

• Inputs and outputs are positioned on opposite sides of the package to facilitate easy interface with microprocessors.
• Features high-output sink capability of 64mA and source capability of 32mA for robust bus interfacing.
• Provides guaranteed output skew and simultaneous switching specifications for both 50pF and 250pF loads.
• Ensures high-impedance, glitch-free bus loading during power-up and power-down sequences.

Latches Applications

• Input or output port buffering for microprocessor systems
• Bus interfacing applications requiring 3-state control
• Octal data latching in digital logic circuits

Latches Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact package type, as the base number corresponds to multiple variants. Confirm RoHS compliance status and lead-free certification requirements prior to procurement. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout.

Latches Selection Notes

Select this component when designing systems requiring octal latching with high-drive 3-state outputs. It is functionally identical to the ABT373 but offers a broadside pinout configuration suitable for different board layouts. Consider the 5.0V supply requirement and ensure the application does not exceed the absolute maximum ratings for input voltages or short-circuit currents.

Latches Part Context

This device belongs to the ABT logic family, characterized by advanced BiCMOS technology designed for high-speed operation. It serves as a standard octal latch solution for general-purpose digital logic applications. The part was originally produced by Fairchild Semiconductor Corporation and is now part of the broader portfolio managed by onsemi following corporate acquisitions.

Latches Replacement Considerations

The datasheet explicitly states that the 74ABT573 is functionally identical to the ABT373. Designers may consider the ABT373 as a direct functional substitute if the pinout configuration allows for adaptation or if the alternative package style meets the mechanical constraints of the design.