74ACT373MTC

Latches Overview

The onsemi 74ACT373MTC is an octal transparent D-type latch featuring three-state outputs, housed in a 20-lead Thin Shrink Small Outline Package (TSSOP). Designed for bus-oriented systems, 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 incorporates TTL-compatible inputs and provides output drive capabilities of 24mA source and sink current. It includes Latch Enable and Output Enable control pins to manage data transparency and high-impedance states.

Latches Feature Summary

• Features eight latches with three-state outputs suitable for bus interfacing
• Includes TTL-compatible inputs for direct logic interface
• Outputs provide 24mA source and sink drive capability

Latches Applications

• Bus organized system applications
• Data storage and buffering
• Logic level translation

Latches Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm the specific package marking matches the 20-TSSOP configuration. Check for RoHS compliance documentation if required by project specifications. Ensure the part number suffix corresponds to the tube packaging variant rather than tape and reel options.

Latches Selection Notes

Select this component when a wide supply voltage range and high drive current are necessary for bus architectures. The ACT series offers improved switching speeds compared to standard AC logic while maintaining compatibility with TTL input thresholds. Consider the TSSOP package dimensions for PCB layout constraints and thermal management requirements during integration.

Latches Part Context

This device belongs to the 74AC/ACT logic family, which utilizes advanced silicon gate technology for low power consumption and high noise immunity. The 74ACT373 specifically enhances performance over the standard 74AC373 by incorporating TTL-compatible input structures. This allows seamless integration into mixed-voltage systems without requiring additional level-shifting circuitry.

Latches Replacement Considerations

MC74ACT373DTR2G

Latches FAQ

What is the function of the Output Enable pin?

When the Output Enable pin is HIGH, the outputs enter a high impedance state, isolating the latch from the bus regardless of the stored data.

How does the Latch Enable signal affect data flow?

When Latch Enable is HIGH, the device is transparent and outputs follow the inputs. When LOW, the data present at the inputs is latched and held at the outputs.