SN74S40N

Inverter Gates Overview

The SN74S40N is a dual 4-input positive-NAND buffer manufactured by Texas Instruments. It belongs to the SN54/74S series of Schottky TTL logic devices, designed for high-speed digital applications. The component features two independent NAND buffers, each with four inputs. It operates within a supply voltage range of 4.75 V to 5.25 V and supports through-hole mounting in a 14-pin PDIP package. The device exhibits a propagation delay of 9 ns and provides standard TTL output drive capabilities.

Inverter Gates Feature Summary

• Dual configuration providing two independent 4-input NAND buffers
• Schottky TTL technology enabling high-speed signal processing
• Positive-NAND logic function with standard TTL input/output compatibility

Inverter Gates Applications

• High-speed digital logic buffering
• Signal conditioning in TTL-based systems
• Data bus interface circuits

Inverter Gates Procurement Notes

Verify the exact part number against official Texas Instruments documentation to ensure compatibility with system requirements. Confirm package type and operating temperature range specifications before integration. Cross-reference datasheet revisions to validate electrical characteristics and pinout configurations for accurate implementation.

Inverter Gates Selection Notes

Select this component when dual 4-input NAND buffering is required in high-speed TTL environments. Ensure the application voltage remains within the specified 4.75 V to 5.25 V range. Consider the 14-pin PDIP package constraints for PCB layout and thermal management during design phase.

Inverter Gates Part Context

This device is part of the Texas Instruments SN54/74S series, which utilizes Schottky diodes to prevent saturation and improve switching speed compared to standard TTL logic. The SN74S40N specifically addresses needs for buffered NAND operations in complex digital circuits requiring fast response times.

Inverter Gates Replacement Considerations

Compatible substitutes include other SN54/74S series NAND buffers such as the SN74S20 or SN74S10, depending on input count requirements. Verify pin compatibility and electrical specifications before substitution.