74FCT373APC

Latches Overview

The National Semiconductor 74FCT373APC is an octal transparent latch featuring three-state outputs, belonging to the FCT logic series. It utilizes CMOS technology and is housed in a 20-pin plastic dual in-line package (PDIP). The device provides eight bits of data storage with true output polarity. Key electrical characteristics include a maximum low-level output current of 48 mA and a load capacitance specification of 50 pF. It operates within a temperature range up to 70 °C and includes power-off disable functionality for outputs.

Latches Feature Summary

• Octal transparent latch architecture with independent enable control
• Three-state outputs designed for bus driving applications
• Power-off disable feature prevents output interference during power transitions

Latches Applications

• Driving heavily loaded three-state buses
• Interfacing with MOS memories
• Connecting to MOS microprocessors

Latches Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against PDIP-20 specifications. Check manufacturing date codes for obsolescence status. Ensure compliance with required environmental standards for the specific application environment. Validate datasheet revisions match the supplied unit documentation.

Latches Selection Notes

Select this component when an octal latch with high-drive three-state outputs is required for bus systems. Consider the FCT series compatibility for interfacing with Fast CMOS logic families. Evaluate the PDIP-20 package constraints against available board space. Verify that the 70 °C operating temperature limit meets system thermal requirements. Assess the 48 mA output drive capability against bus loading conditions.

Latches Part Context

This part belongs to the 74FCT family of logic devices, which bridges the performance gap between standard TTL and CMOS technologies. The 74FCT373 variant specifically implements an octal latch configuration. Pyramid Semiconductor also produced equivalent parts under the P74FCT373 designation, indicating cross-manufacturer availability within the same logical specification framework.

Latches Replacement Considerations

Equivalent parts include the P74FCT373TP from Pyramid Semiconductor Corporation. Other manufacturers such as NXP and Renesas offer compatible 74FCT373 variants, though package types may differ. Verify pinout compatibility before substitution.