SN74HCU04NSR

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The SN74HCU04NSR is a parts of the high speed CMOS logic family from Texas Instruments. It is a Hex Inverter with Schmitt Trigger Inputs, which is designed to operate from a variety of power supplies ranging from 3.0 to 15 volts.

The SN74HCU04NSR is composed of six independent Schmitt-Trigger inverters in a 14-pin DIP package. Schmitt Trigger inputs convert slowly changing input signal levels into sharply defined jitter-free output levels and reduce noise spurious signal transition.

SN74HCU04NSR features high current driving, fast switching times, high noise immunity, wide supply voltage range of 3.0 V to 15 V and has output capability of driving up to 10 LS-TTL loads. The whole device consumes only 0.6 μA supply current. The SN74HCU04NSR also features very low power dissipation and input current when operated with a supply voltage of between 5 V and 15 V. This makes it very suitable for applications where low power dissipation and minimal usage of power is important, such as notebook computers.

Thepins of SN74HCU04NSR are subdivided into two sections: Input and Output. The Output Section consists of six standard CMOS devices inputs/output pins, and these include Output pins (Q-Q5), each of which is an active high Schmitt-Inverter with its own Schmitt trigger input (A-A5). The Input Section consists of the Input pin (A-A5) and four power pins, VDD (pin 7) and VSS (pin 4) to supply the logic circuitry, and VCC (pin 14) and GND (pin 10) to supply the Inverting input logic.

The working principle of SN74HCU04NSR device is simple. When the input voltage is above the high-level trip point of the Schmitt Trigger, the output will be Low. When the input voltage is below the low-level trip point, the output will be High. The Schmitt trigger provides a unique feature that enables the device to be self-adjusting. This means that noise pulses, which a previous non-Schmitt circuit would have recognized as tigger pulses, are rejected by the Schmitt-Trigger.

The SN74HCU04NSR is a versatile devices used in a variety of applications. It is used in clock generator, computer interface, PWM controllers, interface/bus transceivers, counters, data selectors, multiplexers and decoders, waveform generators, sensor interface, and digital signal processing. It can be used as a frequency divider, a multiplexer and demultiplexer, a timer, a resistor network logic AND gate or a switching logic buffer. The hex inverter can also be used to provide additional digital logic summing or flip-flops.

The broad supply voltage range of 3 V to 15 V and extreme low power dissipation make the SN74HCU04NSR suitable for use in many applications. Its ability to drive high current loads with minimal power usage makes it a great choice for applications where low power dissipation is a key design factor such as portable devices. The flexibility of the wide supply voltage range of 3 V to 15 V makes it a perfect choice for both 3 V and 5 V systems.

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