74ACT373SCX

Latches Overview

The onsemi 74ACT373SCX is an octal transparent latch with 3-STATE outputs housed in a 20-Lead Small Outline Integrated Circuit (SOIC) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature from -40°C to +85°C. The device features eight D-type latches, TTL-compatible inputs, and outputs capable of sourcing or sinking 24 mA. Propagation delays for data input to output range from 1.5 ns to 11.5 ns depending on load conditions.

Latches Feature Summary

• Contains eight D-type latches with 3-STATE standard outputs suitable for bus-oriented applications
• Features buffered common Latch Enable (LE) and Output Enable (OE) inputs
• Outputs are TTL-compatible and can source or sink up to 24 mA

Latches Applications

• Bus organized system applications
• Microprocessor interface circuits
• Input or output port buffering

Latches Procurement Notes

Verify the specific ordering suffix 'X' indicates tape and reel packaging as documented in the datasheet. Confirm the manufacturer designation matches onsemi specifications for the 74ACT373 series. Ensure the SOIC-20 package dimensions align with JEDEC MS-013 standards. Cross-reference RoHS compliance status through official documentation before procurement.

Latches Selection Notes

Select this component when an octal latch with high-drive capability and bus interfacing is required. The ACT series provides TTL-compatible logic levels, ensuring compatibility with standard digital interfaces. Consider the 3-STATE output functionality for managing multiple devices on a shared data bus efficiently.

Latches Part Context

This part belongs to the 74AC/ACT family of logic integrated circuits. It functions as an octal transparent latch, distinct from flip-flops by its level-sensitive operation. The SCX variant specifically denotes the surface-mount SOIC-20 package configuration within the broader product line.

Latches Replacement Considerations

MC74ACT373DTR2G

Latches FAQ

How does the Latch Enable (LE) input control data storage?

When LE is HIGH, the latches are transparent and data passes directly to the outputs. When LE transitions from HIGH to LOW, the data present at the inputs is stored in the latches.

What is the function of the Output Enable (OE) input?

The OE input controls the 3-STATE nature of the outputs. When OE is LOW, the outputs are active. When OE is HIGH, the outputs enter a high impedance state, disconnecting them from the bus.