SN74LVC125APWE4

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The SN74LVC125APWE4 is a member of the Texas Instruments LVC logic family. It is a Quad Buffer/Driver, which allows non-inverting buffer drive up to 16 mA and sinking 500 μA. The SN74LVC125APWE4 contains four independent non-inverting Buffer/Drivers with 3-State outputs. This device is used for multipurpose applications such as address bus drivers, data bus buffers, and applications that require inverse buffering. It requires a low input current of 1 μA at 2.7 V to 5.5 V. It also features bus maintain circuits, power-up 3-State, and integrated overvoltage protection.The SN74LVC125APWE4 can be categorized as a logic device—specifically, a part of the logic buffer, drivers, receivers and transceivers family. A logic buffer is a digital logic gate whose purpose is to drive and amplify the voltages and current levels of a digital signal. It is used to improve the electrical drive or interface capability of a digital signal. Logic buffers are usually used for communication interface needs, driving of address and data buses, and driving peripheral circuits.Generally, logic buffers are used to convert voltage levels due to the fact that they have high fan-out capabilities, meaning that they can drive multiple input pins of the same logic family. This makes the SN74LVC125APWE4 ideal for driving multiple peripherals, such as address buses and data buses. The SN74LVC125APWE4\'s wide operating voltage range (1.65V-3.6V) also makes it ideal for multiple interface needs.The SN74LVC125APWE4 also features a static 3-state output, allowing it to function in three different modes: high-impedance, normal (low) drive, and high drive. The High-impedance state serves as an input mode, allowing the SN74LVC125APWE4 to receive data. The Normal drive state allows the SN74LVC125APWE4 to operate in a low-power mode, where only the output buffer is enabled and the output is driven. The High drive state allows the SN74LVC125APWE4 to output high currents of up to 16 mA.Additionally, the SN74LVC125APWE4 features a two-stage bus maintain circuit. This helps to maintain a signal on the output even when the input data is regularly switching. The two-stage bus maintain circuit also prevents false transitions at the output when the input is in the high-impedance state, preventing spurious outputs and minimizing power consumption.The SN74LVC125APWE4 also features integrated ESD protection and overvoltage protection to protect it from damage due to static discharge and accidental input voltages. The ESD protection allows the SN74LVC125APWE4 to endure up to 1.5kV of human body model (HBM) and 200V of minimum HBM discharge. The Overvoltage protection allows the SN74LVC125APWE4 to survive up to 8.5V of Overvoltage on its input and output pins.Overall, the SN74LVC125APWE4 is an ideal logic buffer for applications that require a wide range of voltages, good current drive, and great ESD & overvoltage protection. It is most suitable for address and data bus drivers, as well as other commercial applications that require inverse buffering.

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