74LVC14ATTR

Inverter Gates Overview

The STMicroelectronics 74LVC14ATTR is a low voltage CMOS hex Schmitt inverter fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 1.65V to 3.6V, with data retention down to 1.2V. The device features five independent inverters with hysteresis between positive and negative input thresholds, typically around 700mV. It provides high-speed performance with a maximum propagation delay of 5.0ns at VCC = 3V. Inputs are 5V tolerant, allowing interfacing with 5V signal environments in mixed 3.3/5V systems. All inputs and outputs include protection circuits against static discharge.

Inverter Gates Feature Summary

• Hex Schmitt trigger configuration providing noise immunity for slow rise/fall signals
• 5V tolerant inputs enabling direct interface with 5V logic in mixed-voltage systems
• Power-down protection on inputs and outputs prevents damaging back current during power-off states
• Symmetrical output impedance with minimum drive capability of 24mA at VCC = 3V

Inverter Gates Applications

• Line receivers requiring noise filtering for slow input signals
• Mixed 3.3V and 5V system interfacing
• Low power and low noise digital applications
• PCI bus level compatible interfaces

Inverter Gates Procurement Notes

Verify the specific ordering suffix ATTR corresponds to the TSSOP-14 package when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for obsolescence notices or lifecycle changes directly from STMicroelectronics before finalizing procurement plans. Ensure ESD handling protocols are followed during assembly due to CMOS sensitivity.

Inverter Gates Selection Notes

Select this component when designing circuits requiring Schmitt trigger action to clean up noisy or slowly changing digital signals. It is suitable for applications needing 5V tolerance on inputs while operating at lower core voltages like 3.3V. Consider the 1.65V to 3.6V operating range and ensure the load requirements do not exceed the specified output current limits for the chosen supply voltage.

Inverter Gates Part Context

This part belongs to the 74LVC series of low voltage CMOS logic devices manufactured by STMicroelectronics. The LVC family is designed for high-speed operation with low power consumption, bridging the gap between older 5V TTL families and modern low-voltage standards. The 74LVC14A variant specifically adds Schmitt trigger functionality to the standard inverter role found in the 74LVC04A.

Inverter Gates Replacement Considerations

SN74LVC14APWR (Texas Instruments) is listed as a direct substitute.