PI74FCT573ATS

Latches Overview

The PI74FCT573ATS is an octal transparent latch manufactured by Diodes Incorporated, belonging to the FCT logic series. It features eight data inputs (D0-D7) and three-state outputs (O0-O7). The device operates within a supply voltage range of 4.75V to 5.25V and supports an industrial temperature range from -40°C to +85°C. It utilizes Fast CMOS technology for high speed and low power consumption.

Latches Feature Summary

• Pin compatible with bipolar FAST Series devices while offering higher speed and lower power consumption
• Supports TTL input and output levels with hysteresis on all inputs
• Features low ground bounce outputs and extremely low static power dissipation

Latches Applications

• Bus oriented applications requiring data latching
• Memory address drivers
• System clock drivers

Latches Procurement Notes

Verify the component manufacturer as Diodes Incorporated or Pericom Semiconductor Corporation. Confirm the package type corresponds to the 'S' suffix indicating a 20-pin SOIC. Ensure the speed grade matches the 'A' designation. Check for RoHS compliance status if required by specific manufacturing standards.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is required for bus-oriented designs. It serves as a suitable alternative to bipolar FAST Series parts due to improved performance metrics. Consider the 20-pin SOIC package constraints and verify that the operating voltage aligns with standard 5V logic systems.

Latches Part Context

This part belongs to the PI74FCT573T family of octal transparent latches. It shares functional similarities with the PI74FCT373T but differs in pin configuration regarding data and output placement. The ATS variant specifically denotes the A speed grade housed in a 20-pin SOIC package.

Latches Replacement Considerations

PI74FCT373ATS

Latches FAQ

What is the function of the Latch Enable (LE) pin?

When LE is HIGH, the flip-flops are transparent to the data. When LE is LOW, data meeting the setup time is latched.

How does the Output Enable (OE) pin operate?

The OE pin is active LOW. When OE is HIGH, the bus output enters a high impedance state.