74HCT9114D,118

Inverter Gates Overview

The Nexperia 74HCT9114D,118 is a nine-wide Schmitt trigger buffer with open drain outputs and inverting logic. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features TTL input levels and includes clamp diodes on inputs for overvoltage interfacing. Static characteristics specify a maximum supply current of 160 μA at 5.5 V. Dynamic performance indicates a typical propagation delay of 31 ns at 4.5 V and 13 ns at 5.0 V with a 15 pF load.

Inverter Gates Feature Summary

• Schmitt trigger inputs convert slowly changing signals into sharply defined jitter-free output transitions.
• Open drain outputs allow flexible interfacing and wired-OR configurations.
• Input clamp diodes enable safe connection to voltages exceeding the supply rail using current limiting resistors.

Inverter Gates Applications

• Signal conditioning for noisy environments
• Wave shaping and pulse generation
• TTL-to-CMOS level translation

Inverter Gates Procurement Notes

Verify the specific ordering code 74HCT9114D,118 against the manufacturer's latest datasheet revision history to ensure compliance with current JEDEC standards and ESD protection specifications. Confirm package details match SOT163-1 (SO20) requirements for your PCB layout.

Inverter Gates Selection Notes

Select this component when nine independent inverting channels with hysteresis are required. The HCT logic family ensures compatibility with standard TTL voltage levels while maintaining CMOS power efficiency. Ensure the application can accommodate open drain output limitations regarding pull-up resistor selection.

Inverter Gates Part Context

This part belongs to the 74HCT series of high-speed CMOS logic devices manufactured by Nexperia. It provides a wide buffer solution compared to single-channel inverters, consolidating multiple logic functions into a single SO20 package to reduce board space.

Inverter Gates Replacement Considerations

The 74HC9114D variant serves as a logical alternative if CMOS input thresholds are preferred over TTL levels, though electrical parameters differ.

Inverter Gates FAQ

How does the open drain output configuration affect signal driving?

The open drain outputs require an external pull-up resistor connected to a voltage source to drive the output HIGH. They cannot actively source current.

What is the function of the input clamp diodes?

The clamp diodes protect the internal circuitry by conducting excess current when input voltages exceed the supply voltage, provided a current-limiting resistor is used.