SN74HCS03DR

Inverter Gates Overview

The SN74HCS03DR is a quadruple 2-input NAND gate featuring open-drain outputs and Schmitt-trigger inputs. It operates within a supply voltage range of 2 V to 6 V, with typical supply current of 100 nA and input leakage of ±100 nA. The device provides ±7.8-mA output drive at 5 V and supports an extended ambient temperature range from –40°C to +125°C. Propagation delay ranges from 9 ns to 25 ns depending on voltage. It is housed in a 14-pin SOIC package.

Inverter Gates Feature Summary

• Schmitt-trigger inputs provide tolerance for slow or noisy signals
• Open-drain CMOS outputs allow wired-AND configurations
• Low power consumption with minimal static current draw

Inverter Gates Applications

• Combining power good signals
• Combining enable signals

Inverter Gates Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements and thermal constraints before finalizing procurement decisions.

Inverter Gates Selection Notes

Select this component when open-drain logic functionality is required for bus sharing or wired-AND operations. The inclusion of Schmitt triggers makes it suitable for environments with signal noise or slow rise times. Verify that the load capacitance remains within recommended limits to maintain specified switching characteristics.

Inverter Gates Part Context

This part belongs to the Texas Instruments HCS (High-Speed CMOS) logic family. It shares functional similarities with other quad NAND gates but distinguishes itself through the combination of open-drain outputs and Schmitt-trigger inputs, offering enhanced noise immunity compared to standard CMOS variants.

Inverter Gates Replacement Considerations

SN74HCS03PWR

Inverter Gates FAQ

How should unused inputs be handled?

Unused inputs must not be left floating. They should be terminated to either VCC or ground using a pull-up or pull-down resistor, typically 10 kΩ, to prevent undefined operational states.

Can the outputs be connected together?

Yes, the open-drain outputs can be directly connected to form a wired-AND configuration because they cannot source current, preventing bus contention.