SN74AHCT08NSR

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A SN74AHCT08NSR is a high-speed Octal Buffer/Line Driver with 3-state outputs. It is versatile and offers 4 different outputs: active low, active high, open drain, and open collector. It provides the transistor-transistor logic (TTL) level of performance. It is a 14-pin device that includes a power-on-reset (POR) feature for greater system reliability. It is capable of driving up to 15 TTL loads. The SN74AHCT08NSR is ideal for driving bus lines, address lines, and other control signals in digital systems.

The SN74AHCT08NSR belongs to the family of Logic - Gates and Inverters. Gates are circuits that combine multiple signals to produce one output signal according to a specific logic function. For example, an AND gate takes two or more inputs and outputs a logic 1 if all of the inputs are logic 1; otherwise, it outputs a logic 0. Similarly, an OR gate takes two or more inputs and outputs a logic 1 if any of the inputs are logic 1, otherwise it outputs a logic 0. Inverters, also known as NOT gates, take a single input and invert the logic state of the output. That is, if the input is a logic 0, the output will be a logic 1 and vice versa.

The SN74AHCT08NSR specifically is a TTL Octal Buffer/Line Driver with parallel 3-state outputs. It is comprised of eight buffers, each with a single input and a single output. The output can be either in the active low, active high, open drain, or open collector state. The device operates with a single power supply and includes a power-on-reset (POR) circuit for greater system reliability. Furthermore, it is capable of driving up to 15 TTL loads and up to 50 open collector loads.

The SN74AHCT08NSR functions as a 3-state buffer/line driver and is used to drive either the high or low logic state, any of which can be set with the control inputs. When the enable input (EN) is high, the outputs are enabled and the output will follow the input data (DI). When the enable input is low, the outputs are disabled and the output will be placed in the high impedance state (Z). The EN signal is an active low signal and all outputs will be disabled regardless of the logic states of the DI signals. The Open Drain (OD) output provides a low logic level when enabled and a high impedance when disabled. The Open Collector (OC) signal functions similarly except it provides a high level when enabled and a low impedance when disabled.

The SN74AHCT08NSR can be used in a wide variety of applications. In digital systems, it is often used for driving bus lines, address lines, and control signals. It also can be used to convert logic waveforms from one logic family to another, for example from TTL to CMOS. Additionally, it is used for controlling driver outputs or looking at receiver inputs. It can also be used to interface mixed logic families or to multiplex data and address lines with the enable signal.

In summary, the SN74AHCT08NSR is a high-speed Octal Buffer/Line Driver with 3-state outputs belonging to the Logic - Gates and Inverters family. It provides a TTL level of performance, features a power-on-reset (POR) circuit for greater system reliability, and is capable of driving up to 15 TTL loads and up to 50 open collector loads. It is used in a variety of applications such as driving bus lines, address lines, and control signals, converting from one logic family to another, and controlling driver outputs or looking at receiver inputs.

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