74ABT573CMSA

Overview

The onsemi 74ABT573CMSA is an octal D-type latch with 3-STATE outputs, housed in a 20-lead Shrink Small Outline Package (SSOP). 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 buffered common Latch Enable (LE) and Output Enable (OE) inputs. Propagation delays from data inputs to outputs are typically 2.7ns at VCC=5.0V with a 50pF load, while LE-to-output delays are typically 3.1ns. Maximum output currents are 64mA sink and 32mA source.

Feature Summary

• Octal D-type latch architecture with high-impedance, glitch-free bus loading during power-up and power-down
• Outputs located on opposite sides of the package for easy microprocessor interface
• Guaranteed simultaneous switching specifications and noise level performance
• Nondestructive hot insertion capability with guaranteed latchup protection

Applications

• Microprocessor input or output port interfacing
• Bus interfacing applications requiring 3-STATE control
• Data latching in digital logic circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the SSOP-20 package matches design requirements. Check RoHS compliance documentation for material composition. Ensure storage conditions adhere to JEDEC standards to prevent moisture damage prior to soldering.

Selection Notes

Select this component when broadside pinout configuration is required for layout optimization. Compare propagation delay characteristics against system timing constraints. Evaluate current drive capabilities to ensure compatibility with downstream loads. Consider thermal management within the specified operating temperature range.

Part Context

This part belongs to the ABT logic family, known for high-speed operation and low power consumption. It is functionally identical to the ABT373 but utilizes a different pinout arrangement. The device serves as a standard octal latch solution for general-purpose digital applications requiring reliable data storage and bus isolation.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.