74V1G02STR

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Logic - Gates and Inverters

74V1G02STR is a single gate (SGS) 2-input NAND logic inverter device powered by 5-V supply voltage, which has various applications in logic gate circuit. It is built with high performance bipolar transistor technology, equipped with Schottky barrier-clamped diodes, and reach an output current of 24mA while maintaining specified thresholds of input. This technical article will explain its application field and working principle.

Application field

74V1G02STR logic inverter has versatile applications in logic gate circuits where power-on reset functions or dual logic functions are needed. It can be used for implementing AND logic gates and OR logic gates, latch when RESET signal transitions from low- to high- level, and for generating cascading systems. In addition, it can be used as a positive edge detector when triggered from low-to-high-level, and works as a monostable multigrable circuit with RESET input.

Working principle

74V1G02STR derives its working principle from that of NAND logic gate. It consists of two input channels and one output, which operate in complementary pairs. As the name suggests, NAND logic gates work by taking two logic input signals, and produces an output that is the opposite of the AND logic gate. In this case, when both inputs are high, the output is low. Conversely, when either one of the inputs is low, the output is high. Moreover, the device utilizes Schottky barrier-clamped diodes for faster switching.

The two input signals that go into the 74V1G02STR device is first passed through the Schottky barrier-clamped diode. This diode prevents any static electricity from causing damage to the device. The two inputs, along with the ground, are also connected to the NAND-gate. When both inputs are low, the NAND-gate returns a logic high, switch the output to the ON state. Conversely, if either one of the inputs are low, the NAND gate returns a logic low, switching the output to OFF state.

In addition to it, the NAND gate sends a logic low RESET signal to the SGS inverter, which is used to trigger the dual-logic functions or the power-on reset. When RESET signal transitions from low- to high- level, the SGS inverter passes a positive voltage from the positive-terminal to the output, triggering the power-on reset. As a result, the 74V1G02STR logic device can is useful for operations that require more logic functions than an ordinary logic gate.

Conclusion

From this article, it is clear that the 74V1G02STR logic inverter is an excellent device for performing various operations in logic gate circuits, from generating positive edge detectors to firing power-on reset functions. It utilizes the principles of NAND logic gate and Schottky barrier-clamped diodes to ensure reliable and fast switching.

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