74F573SC

Latches Overview

The 74F573SC is an octal D-type latch with 3-state outputs manufactured by Fairchild Semiconductor. It operates within a supply voltage range of +4.5V to +5.5V and features buffered common Latch Enable (LE) and Output Enable (OE) inputs. The device provides propagation delays of 2.0 ns to 6.0 ns for data transitions and 3.0 ns to 7.0 ns for latch enable transitions at VCC = 5.0V. It guarantees a minimum ESD protection of 4000V and includes high-impedance output states for bus interfacing.

Latches Feature Summary

• Features 3-state outputs controlled by the OE input, allowing direct bus interfacing without external buffers.
• Inputs and outputs are positioned on opposite sides of the package to facilitate easy interface with microprocessors.
• Contains eight D-type latches with buffered common LE and OE inputs for simplified control logic.

Latches Applications

• Microprocessor input or output port expansion
• Bus interfacing applications requiring 3-state isolation
• General-purpose storage in digital logic systems

Latches Procurement Notes

Verify component authenticity as this part was originally produced by Fairchild Semiconductor. Confirm that the SOIC-20 package matches the M20B designation. Ensure compatibility with existing 5V logic designs, noting that the device is functionally identical to the 74F373 despite pinout differences. Check for RoHS compliance if required by current manufacturing standards.

Latches Selection Notes

Select this component when a high-speed octal latch with 3-state outputs is required for microprocessor interfaces. It serves as a suitable alternative to the 74F373 where different pinout configurations are necessary. Consider the specific propagation delay requirements and the need for buffered control signals when evaluating this device against other logic families.

Latches Part Context

This component belongs to the 74F series of high-speed logic devices. It is functionally equivalent to the 74F373 but utilizes a distinct pinout arrangement. The device is designed for standard 5V logic applications and offers enhanced speed characteristics typical of the F series, making it suitable for demanding digital timing environments.

Latches Replacement Considerations

The 74F373 is functionally identical but has a different pinout. Verify pin compatibility before substitution. Other 74F series latches may require level shifting or logic inversion adjustments.