SN74CBTLV3251D

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The SN74CBTLV3251D is a type of logic signal switch, multiplexer, and decoder produced by Texas Instruments. It is a member of their low-voltage signal switching family. This device is designed to aid in power and signal routing, level shifting, and reducing board area. It can handle signals as low as 1.14V at room temperature.

This is similar to other Low Voltage CMOS parts, but it shines in low-voltage application. It has a low power and high performance design that is beneficial for applications that need to meet today’s low-voltage requirements. The SN74CBTLV3251D has a different input and output logic levels than CMOS parts, and can support a wide range of voltage levels, making it ideal for multiple standards.

The SN74CBTLV3251D is a dual-supply device that requires both a positive and a negative supply, which can range between 2.7 and 2.3V. The outputs are high-impedance and the inputs can be connected to a bus having either 3.3V or 5V logic levels. It overcomes the need for level-shifting to connect a single-supply logic device to a bi-directional bus having both 3.3V and 5V inputs.

The device operates from a single, unidirectional supply voltage. The input levels are 1.14 Volts and the output levels are a function of both the input voltage and the supply voltage. The power supply is enabled only when both the LVCMOS and the bus levels are valid.

In a typical application, the inputs of the SN74CBTLV3251D are connected to the logic levels of a larger logic system. The outputs are then connected to power devices such as LED drivers, H-bridges, motor drivers, etc. This device also switches the multiplexer output to the desired logic state, which can be either low or high. It can be used to select and route signals in any combination of 1-of-8 data paths.

The output of the SN74CBTLV3251D is determined by the logic level on its input. The output level is logic low or high based on the logic level of the input. A logic low is when the logic state of the input is low, while a logic high is when the logic state of the input is high. Additionally, the level shifting capability of the device allows it to be used in any combination of 1-of-8 data paths.

The SN74CBTLV3251D is controlled by the device control pin (Ctrl), which selects the desired logic state of the device’s output. The logic state of the output can be either logic high (1), logic low (0), signal high impedance (Z), or power high impedance (H). The signal high impedance (Z) and power high impedance (H) states allow the device to be placed in high-impedance mode, which prevents signal contention when multiple signals are being transmitted at the same time.

The SN74CBTLV3251D allows for the routing and signal level shifting between the different voltage levels in a low voltage application. It is cost effective due to its low power and minimal real estate requirements on a board. Moreover, it is ideal for applications where meeting the low-voltage requirements are necessary. This makes it a great choice for power, signal routing, level shifting, and board area reduction in a variety of low voltage applications.

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