SN74LS09DR

Inverter Gates Overview

The SN74LS09DR is a quad 2-input AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic series and features open-collector outputs. The device operates within a supply voltage range of 4.75 V to 5.25 V. It provides a low-level output current of 8 mA and a high-level output current of -400 uA. The maximum propagation delay is 35 ns at 5 V with a 15 pF load. It functions reliably across an operating temperature range of 0°C to +70°C.

Inverter Gates Feature Summary

• Contains four independent 2-input AND logic gates
• Features open-collector outputs for wired-AND capability
• Compatible with standard TTL logic input levels

Inverter Gates Applications

• Digital logic circuits requiring AND operations
• Wired-OR or wired-AND bus configurations
• General-purpose switching applications

Inverter Gates Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type, tape-and-reel specifications, and environmental compliance status such as RoHS. Ensure the component matches the required SOIC-14 footprint and lead finish before finalizing procurement orders.

Inverter Gates Selection Notes

Select this component when designing systems that require multiple AND gates in a single surface-mount package. The open-collector output structure allows interfacing with different voltage domains compared to standard push-pull outputs. Consider the 8 mA sink current capability for driving external loads directly.

Inverter Gates Part Context

This part is part of the widely used 74-series logic family, specifically the Low-power Schottky (LS) variant known for balanced speed and power consumption. The 'DR' suffix indicates it is packaged in a 14-pin Small Outline Integrated Circuit (SOIC) designed for surface-mount technology assembly processes.

Inverter Gates Replacement Considerations

SN74LS09DRE4

Inverter Gates FAQ

What is the significance of the open-collector output?

Open-collector outputs allow multiple devices to share a common line, enabling wired-AND logic functions and level shifting between different voltage supplies.

Does the SN74LS09DR support 3.3V logic levels?

No, the device requires a 5V supply (4.75V to 5.25V) and is not compatible with 3.3V logic levels without additional interface circuitry.