SN74LVC1404DCTR Integrated Circuits (ICs)

Series:	74LVC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Crystal Oscillator Driver
Supply Voltage:	1.65 V ~ 5.5 V
Number of Bits:	1
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
Supplier Device Package:	SM8 (SSOP)
Base Part Number:	74LVC1404

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SN74LVC1404DCTR Summary

The SN74LVC1404DCTR is a logic device from Texas Instruments and is classified as Specialty Logic. It is a quad Schmitt trigger containing inverters with logic-level converters which offer excellent noise immunity, a wide input voltage range, and low power dissipation. This allows for its use in a wide range of applications.

ST74LVC1404DCTR Application Field

The SN74LVC1404DCTR has a large range of applications due to its versatility. It can be used in digital clocks and counters, voltage level shifting, data communications such as RS232, and as a bus transceiver among other things. Its characteristics of low power disipation, wide range of input voltages, and excellent noise immunity make it an ideal choice for a range of applications that require a low power, low noise digital logic device. For example, it can be used in automotive applications where accuracy is required in a very noisy environment.

Working Principle

The SN74LVC1404DCTR contains four inverters with Schmitt trigger inputs. This allows for noise-immune logic signals to be generated from logic-level inputs within the range of 0V to 3.6V. The Schmitt trigger has hysteresis which reduces the effect of noise on the input voltage and leads to a more accurate output level with less jitter.The output voltage is either high (VOH) or low (VOL). The output voltage is determined by the output level and hysteresis as shown in the diagram below.The SN74LVC1404DCTR also has a high-impedance input so that multiple switches can be connected together without resulting in a short circuit. This allows the device to be used as a bus transceiver.

Conclusion

The SN74LVC1404DCTR is a versatile logic device from Texas Instruments that can be used for a variety of applications due to its excellent noise immunity, wide range of input voltages, and low power dissipation. It can be used in digital clocks and counters, voltage level shifting, data communications, and as a bus transceiver. The on-chip Schmitt trigger with hysteresis provides a logical output signal with reduced jitter even in noisy environments.

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