SN74HCT125DR

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SN74HCT125DR is an open-drain Schottky TTL driver chip and an integral member of the SN74HCT family of high-speed CMOS devices. The SN74HCT125DR is an ideal choice for a wide variety of applications, including level translation, logic buffering, clocking signals, and switching. The chip is capable of driving loads as large as 30 mA (VDD = 5V, VOH = 3.0V) and 2.2 mA (VDD = 3.0V, VOH = 1.5V). It is designed to work with 5V and 3.3V power supplies.

The SN74HCT125DR is designed to provide excellent performance using very low power consumption, has a wide operating temperature range, and has three-state outputs that can be used to set logic levels and prevent interfaces from floating between devices. This chip is available in a 14-pin DIP and SOIC wide-body package.

The SN74HCT125DR is suitable for a wide range of applications, including voltage level translation, bus transceiver potential monitoring, logic buffering, switching, and synchronizing. Level translation can be achieved easily with the SN74HCT125DR processor by adjusting the VDD voltage to match the logic level of the target system. The logic can be buffered to reduce interference due to logic margin or data transition rate. It can also be used to switch between two logic levels or between two buses.

The SN74HCT125DR works on a pull-up/pull-down principle. When the output is enabled, a pull-up (enable) voltage (Vdd) is supplied to the output. If a logical "low" (0V) is applied to the input the output is pulled down to ground, this is called a pull-down. On the other hand, when a logical "high" (3.3V) is applied to the input, the output is pulled up to the Vdd voltage, this is called pull-up. The low quiescent current and low input current makes the SN74HCT125DR suitable for low power applications.

The SN74HCT125DR is particularly useful for level translation and buffer applications, providing the reliability and compatibility of TTL with the low voltage (LVTTL) and 3.3V standard logic. The SN74HCT125DR is used in various applications such as data and address buses, clock and control signals, and memory interface applications. This chip is widely used in automotive, industrial, and consumer applications, as well as in a variety of computer, communications and network systems.

In summary, the SN74HCT125DR is a high speed, low power and versatile TTL driver chip that is used in many different applications. It offers compatibility with both 5 and 3.3V logic levels, wide range of power supplies, high speed operation, low quiescent and input currents, and three-state outputs that allow for level translation, logic buffering, and clocking signals.

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