SN75LBC172DW

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SN75LBC172DW is an octal non-inverting buffer/line driver with 30 ohm series termination resistors from the 74-AUP family of devices from Texas Instruments. SN75LBC172DW has been widely used in system level application circuits as an interface between variable impedance devices and low impedance circuits. It is suitable for switching signals between two different logic families such as fast ECL, TTL, and MOS, as well as general data bus drivers not requiring active pullup/pulldown logic.

The SN75LBC172 device consists of eight non-inverting drivers with fifty-ohm series termination resistors, eight driver enable pins, and sixteen I/O pins. Output drivers are operated by positive or negative logic levels on the E pin of the associated output port (OE0-OE7). When the logic 1 level is applied to the OE pin, the associated output is enabled and data appears at the output pins. When the logic 0 level is applied to the OE pin, the output is disabled and the output is in high impedance state. Each driver has a maximum high or low switching speed of 1.8 ns and a typical propagation delay (tPD) of 10 ns. The SN75LBC172DW is LVCMOS compatible, allowing it to be used to interface with devices of different voltage levels.

The SN75LBC172DW is suitable for applications such as digital crosspoint and bus control, DVI/HDMI link switching, two-wire communication interface, audio and video switching, multi-conductor digital video, video serializer and deserializer wafer connection, camera sensors and so on. The wide range of applications is because it offers an ideal solution to problems arising from the need to drive large capacitive loads, maintain signal integrity when multiple drivers are combined, and unite various logic families with high speed and low power consumption. The SN75LBC172DW provides superb output characteristics and buffering capabilities, making it suitable for applications requiring strong drive capability and good signal integrity.

The operating principle of SN75LBC172DW is the integration of input logic levels into output logic levels. IC incorporates levels of buffering to prevent current overloads and keep the system from overheating by allowing safer passage of current from one part of the circuit to another. Its open-drain internal circuitry allows the device to sink or source current on a per-pin basis. This also eliminates the need to establish a common ground voltage between two devices. Additionally, the device is designed to have a low power consumption feature. This enables it to send data at fast speed, while reducing the risk of short-circuit and the possibility of system damage.

In conclusion, SN75LBC172DW is a versatile device suitable for a wide range of applications, including digital crosspoint and bus control, two-wire communication interface, video serializer and deserializer, video and audio switching, and multi-conductor digital video. With a fast switching speed, low power consumption, and buffering capabilities, as well as 50 ohm series termination resistors, it is an ideal choice for system applications. It is also suitable for interfacing circuitry between logic families, allowing for a greater degree of signal integrity in systems.

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