SN75ALS193N

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The SN75ALS193N is a type of integrated circuit (IC), most commonly categorized as an interface. It is a quad bilateral receiver and it is capable of using a wide range of power supplies and logic levels. The SN75ALS193N is designed to receive and output signals that are compatible with multiple logic families.

The SN75ALS193N is most often used in applications requiring low power and high noise immunity, such as automotive, industrial, and communications. The device can be used to bridge between different logic families, arbitrate multiple data buses, and provide buffering for multiple data sources.

The SN75ALS193N is an advanced 4-channel receiver with a fully-complementary output system. It is compatible with numerous logic-level families and power supply requirements. It has self-cascading capability for tightly synchronized, low latency control of multiple receivers and data sources. The power supply voltage range of the device is 0.9V to 7V, with a maximum supply current of 12mA.

Working Principle

The SN75ALS193N consists of four bilateral receivers. A pair of complementary outputs are provided per channel, one active-low and one active-high. Each output is open-drain and can be pulled up with an external resistor.

The SN75ALS193N functions by converting a logic-level input signal to a complementary output. The inputs can accept logic signals with various logic levels, with a logic level 0 voltage ranging from 0.4V to 1.2V and a logic level 1 voltage from 2V to 5.5V. When the input is at a logic level 0, the output of the receiver is at a logic level 1, and when the input is at a logic level 1, the output is at a logic level 0. The output is pulled up to the supply voltage by the external resistor.

The receiver provides hysteresis, meaning the threshold voltage of the input that changes the output is different for logic level 0 and logic level 1. Furthermore, the receiver has a wide noise immunity tolerance and has built-in protection against high frequency supply noise. In addition, the receiver is capable of providing synchronization among multiple receivers and data sources.

The SN75ALS193N is available in an 8-pin SOIC or a 8-pin PDIP package, making it suitable for applications that have limited board space. It is also available in an automotive-grade version, making it suitable for use in applications that require temperature stability.

Conclusion

The SN75ALS193N is a versatile IC that can be used to bridge between different logic families, arbitrate multiple data buses, provide buffering for multiple data sources, and provide synchronization between multiple receivers and data sources. With a wide range of compatible logic levels, it can be used in a wide range of applications, such as automotive, industrial, and communications. The SN75ALS193N is available in various package options, making it suitable for use in applications that have limited space.

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