74BCT373PC

Overview

The SN74BCT373PC is an octal transparent latch featuring tri-state outputs, manufactured by National Semiconductor. It operates within a supply voltage range of 4.5V to 5.5V and supports a propagation delay of 11.6ns. The device provides output currents of 15mA in the high state and 64mA in the low state. It is housed in a 20-pin PDIP package with a standard 0.300-inch (7.62mm) width. The component functions as a single-channel D-type latch suitable for digital logic applications.

Feature Summary

• Octal transparent latch architecture with tri-state output capability
• D-type logic configuration for data storage and transfer
• Non-inverted output signal integrity

Applications

• Digital data buffering systems
• Memory address latching circuits
• Parallel-to-serial data conversion interfaces

Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor's logic division was acquired by Texas Instruments. Ensure the specific part number matches your design requirements regarding package type and electrical specifications. Confirm RoHS compliance status if required for modern manufacturing standards, as older batches may differ. Cross-reference datasheets from both original and successor sources to ensure parameter accuracy.

Selection Notes

Select this component when an octal latch with tri-state control is required for 5V logic systems. Consider the 11.6ns propagation delay for timing constraints. The 20-pin DIP package is suitable for through-hole prototyping or legacy board designs. Evaluate current drive capabilities against load requirements before finalizing the selection.

Part Context

This component belongs to the 74BCT series, which combines BiCMOS technology for high-speed performance with CMOS power efficiency. The 74BCT373 variant specifically provides eight D-type latches with tri-state outputs. It is functionally compatible with other 74-series logic families while offering improved switching speeds and lower power consumption compared to standard TTL equivalents.

Replacement Considerations

The SN74BCT373N-10 from Texas Instruments serves as a direct functional substitute. Verify pin compatibility and electrical parameters before substitution.