SN74S140N

Inverter Gates Overview

The SN74S140N is a high-speed Schottky logic device manufactured by Texas Instruments, housed in a 14-pin PDIP package. It functions as a dual 4-input positive-NAND gate with an integrated 50-Ohm line driver. The component operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 6.5 ns. It provides a low-level output current of 40 mA and a high-level output current of -60 mA. The device is rated for operation between 0°C and +70°C.

Inverter Gates Feature Summary

• Integrates dual 4-input NAND gates with dedicated 50-Ohm line drivers for signal transmission.
• Utilizes high-speed Schottky (S) logic technology to achieve rapid switching performance.
• Features robust output drive capabilities suitable for interfacing with transmission lines.

Inverter Gates Applications

• High-speed digital logic circuit design
• Signal transmission via 50-Ohm impedance matching networks
• Industrial control systems requiring fast response times

Inverter Gates Procurement Notes

Verify the specific suffix 'N' confirms the through-hole PDIP-14 package variant rather than surface-mount options. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as regulatory updates may affect production batches. Ensure the ordering part number matches the exact logical function and pinout requirements for your schematic design.

Inverter Gates Selection Notes

Select this component when a combination of NAND logic functionality and direct line driving capability is required without external buffering. The Schottky series offers superior speed compared to standard TTL variants. Verify that the 50-Ohm output impedance aligns with your transmission line specifications and that the operating temperature range meets your environmental constraints.

Inverter Gates Part Context

This device belongs to the Texas Instruments SN74S family of high-speed Schottky logic ICs. It serves as a specialized logic gate combining decision-making functions with signal conditioning. The SN74S140N is distinct from standard NAND gates due to its integrated line driver, making it suitable for applications requiring impedance matching and signal integrity over short distances.

Inverter Gates Replacement Considerations

Cross-reference with other SN74S series components for functional compatibility. Verify pinout alignment if substituting with equivalent parts from different manufacturers. Ensure the replacement maintains the same 50-Ohm line driver specification and Schottky logic speed characteristics.