SN74F573N

Overview

The SN74F573N is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the SN74F logic series. It features eight non-inverting outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a low-level output current of 32 mA and a high-level output current of -3 mA. Propagation delay is specified at 7 ns when operating at 5 V. It is housed in a 20-pin PDIP package and supports through-hole mounting. The component functions reliably across an ambient temperature range from 0°C to +70°C.

Feature Summary

• Contains eight independent transparent D-type latches for parallel data storage
• Provides high-drive capability with 32 mA low-level output current
• Features non-inverting output polarity for direct signal transmission

Applications

• Parallel-to-serial data conversion circuits
• Bus-oriented memory register applications
• Temporary data storage in digital logic systems

Procurement Notes

Verify that the specific part number matches the required SN74F series specifications, including the 20-pin PDIP package and through-hole installation style. Confirm operational temperature limits align with the 0°C to +70°C range. Ensure compatibility with the 4.5 V to 5.5 V power supply requirements before integration into the design.

Selection Notes

Select this component when high-speed switching is required within standard TTL voltage levels. The SN74F series offers faster propagation delays compared to standard logic families. Consider the 32 mA drive strength for interfacing with heavy loads. Verify that the through-hole packaging suits the target PCB layout constraints.

Part Context

This device is part of the broader SN74xx logic family, specifically designed for fast switching applications. It serves as a fundamental building block for sequential logic circuits requiring multiple bits of storage. The octal configuration allows for efficient handling of byte-wide data paths in microprocessor-based systems.

Replacement Considerations

SN74F573DWR shares identical logical functionality but utilizes a surface-mount SOIC-20 package instead of the through-hole PDIP format.