74ACT573MTC

Latches Overview

The onsemi 74ACT573MTC is an octal D-type latch featuring three-state outputs, housed in a 20-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of 4.5V to 5.5V and supports an ambient temperature range from -40°C to +85°C. The device provides TTL-compatible inputs and delivers output drive capabilities of 24mA for both sourcing and sinking currents. Propagation delay from data input to output is typically 6.0ns at 5.0V with a maximum of 10.5ns under standard load conditions.

Latches Feature Summary

• Features buffered common Latch Enable and Output Enable inputs for efficient bus interfacing
• Provides high-speed octal latching with reduced quiescent current and output leakage
• Includes three-state buffers that allow direct connection to system buses without external drivers

Latches Applications

• Microprocessor input or output port expansion
• Bus-oriented memory addressing and data storage
• Register applications requiring isolated data holding

Latches Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with JEDEC standards for lead-free materials. Confirm that the component meets RoHS requirements if applicable to your manufacturing process. Cross-reference the datasheet revision date to ensure all electrical characteristics align with your design constraints.

Latches Selection Notes

Select this component when a high-speed octal latch with three-state outputs is required for 5V logic systems. The ACT series ensures TTL-compatible input thresholds while maintaining AC performance levels. The TSSOP package offers a compact footprint suitable for space-constrained surface mount designs. Verify that the operating voltage and temperature ranges match your system environment.

Latches Part Context

This part belongs to the 74ACT573 family of octal latches. It is functionally identical to the 74AC573 but includes TTL-compatible inputs. The device is also comparable to the 74ACT373, differing primarily in pinout orientation where inputs and outputs are located on opposite sides of the package to facilitate easier microprocessor interfacing.

Latches Replacement Considerations

The 74ACT373 serves as a functional equivalent with a different pinout configuration. Other compatible parts include the 74AC573, which lacks TTL-compatible inputs, and the MC74ACT573DTR2G, which shares similar electrical characteristics but may differ in packaging or manufacturing origin.