MC74HC126ANG

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Logic - Buffers, Drivers, Receivers, Transceivers

The MC74HC126ANG is an integrated logic circuit from ON Semiconductor which is widely used in various applications. It falls in the category of Logic - Buffers, Drivers, Receivers, Transceivers. This article explains in detail the application field as well as the working principle of the MC74HC126ANG.

Application Field

The MC74HC126ANG can be used in a wide range of applications. Some of the major applications areas include digital electronics, monitoring applications, TTL logic circuits and MCU control systems. This device can be used in digital circuits to improve their performance by providing isolated outputs with high impedance level, buffered logic input and a differential output driver. It can also be used in control systems and monitoring applications as a reliable logic level converter.

Working Principle

The MC74HC126ANG is a three-state differential driver providing high acceleration and deceleration switching speeds of up to 20 MHz. It also provides programmable propagation delays of up to 1 ns. It is made up of two independent inverting buffers, an inverting buffer for the complementary output and a NAND gate for the enable input. The output stage is made up of an output buffer and an output transistor pair. The logic input level is buffered and amplified by the inverting buffer. The output from the buffer is then processed by the output buffer, which provide a high impedance level. The output is then processed by the output transistor pair, which converts the logic level into a differential signal.

The MC74HC126ANG also features a power down mode, providing minimum power consumption when not in use. This ensures high efficiency and lower system costs. Additionally, the NAND gate for the enable input allows for low-power shutdown of the device in order to conserve power. The output three-state buffers are built to provide an ideal logic level between -2V and +2V when not enabled. The differential output driver features a wide input range, making it ideal for low voltage circuit designs.

Conclusion

The MC74HC126ANG is a high performance integrated circuit that can be used in a wide range of applications such as digital electronics, monitoring systems and TTL logic circuits. It is designed to provide high acceleration and deceleration switching speeds, as well as programmable propagation delays. Additionally, it features a power down mode and a wide input range. This makes it an ideal choice for low power, low voltage circuit designs.

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