74LVC1G240GWH

Overview

The Nexperia 74LVC1G240GWH is a single inverting buffer and line driver with three-state outputs, housed in a TSSOP5 (SOT353-1) package. It operates within a supply voltage range of 1.65 V to 5.5 V and supports input voltages up to 5.5 V. The device features Schmitt-trigger inputs for noise immunity and includes IOFF circuitry to prevent backflow current during partial power-down states. It provides an output enable pin to control the high-impedance OFF-state.

Feature Summary

• Provides a single-channel inverting buffer function with three-state output capability controlled by an OE pin.
• Features Schmitt-trigger action on all inputs to ensure tolerance against slow rise and fall times.
• Includes dedicated IOFF circuitry that disables outputs to prevent damaging backflow currents when the device is powered down.

Applications

• Translating signals between mixed 3.3 V and 5 V logic environments
• Partial power-down mode applications requiring isolation
• High-noise immunity signal buffering

Procurement Notes

Verify the specific ordering suffix 'H' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the selected variant matches the required temperature range and package dimensions listed in the product data sheet before finalizing procurement orders.

Selection Notes

Select this component when a single-channel inverting buffer with three-state control is required. It is suitable for designs needing direct interface with TTL levels and operation across a wide voltage range from 1.65 V to 5.5 V. Consider the TSSOP5 package constraints and thermal dissipation limits for your specific PCB layout.

Part Context

This part belongs to the 74LVC family of low-voltage CMOS logic devices manufactured by Nexperia. The 74LVC1G240 series specifically offers single-gate solutions in compact packages like TSSOP5, XSON6, and X2SON5, designed for space-constrained portable and battery-operated electronics.

Replacement Considerations

Check for other variants within the 74LVC1G240 series, such as those in XSON or X2SON packages, if different footprint requirements exist. Verify functional compatibility with other single inverting buffers in the LVC family before substitution.

FAQ

How does the device handle partial power-down conditions?

The device utilizes IOFF circuitry which automatically disables the output, preventing potentially damaging backflow current through the device when it is powered down.

What is the function of the OE pin?

The Output Enable (OE) pin controls the three-state output. A HIGH level on OE causes the output to assume a high-impedance OFF-state.