SN74CBT3383DWRG4

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Logic - Signal Switches, Multiplexers, Decoders encompasses a variety of optoelectronic, logic and passive devices for signal switching, single and multichannel multiplexers and decoders. One such device is the SN74CBT3383DWRG4 and this article provides a look into its application area, as well as its working principle.

The SN74CBT3383DWRG4 is a 3-to-8 line decoder/demultiplexer with a low-power Schottky barrier (LPSBT) process and complementary outputs. It is a component that converts the single binary information on a single input (data) to multiple binary information on multiple output lines. The device uses three address inputs (nA0, nA1, and nA2), an active low enable input (noE), and eight active low outputs (nOUT0…nOUT7) to decode an 8-bit binary code provided at the address inputs. The LPSBT process guarantees high noise immunity and high datarate along with very low parasitics.

The SN74CBT3383DWRG4 is used in various applications, predominantly in communication and networking applications, including point-to-point links, WDM systems, high-speed backplane designs, digital camcorders and cameras and ESD (Electrostatic Discharge) protection. It is also used for data buffering and to re-time data signals in other applications.

When the noE input is disabled low, all outputs of the SN74CBT3383DWRG4 are disabled low and no power is consumed. If the noE input is disabled high, whatever address inputs are presented to the device will control the outputs. This can be understood using the truth table provided in the datasheet:

It can be seen from the truth table that if the disable input is high, the output changes in accordance with the address inputs provided. The output is low when the input code matches the code applied to the address inputs, and it is high otherwise. The SN74CBT3383DWRG4 enables high-speed data communication links and WLAN high-definition video links.

The SN74CBT3383DWRG4 is a low power device and its current consumption varies with the supply voltage and operating temperature. Its static output current is typically 2 mA and its static power consumption is typically only 0.02 W. The device has a wide operating temperature range from -40°C to +125°C, and it features a high noise immunity for reliable operation under real-world applications.

The SN74CBT3383DWRG4 is ideally suited for communication and networking applications where low power and low cost are critical, as well as for high-speed backplane links, digital camcorder and camera links, point-to-point links and ESD protection. The device is also excellent for data buffering and re-timing.

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