SN75ALS197NSR

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A SN75ALS197NSR is a unidirectional octal bus transceiver, which is designed with both 5-volt and 3-volt technology and is designed in compliance with the Automotive Electronics Council (AEC) standard. It is also widely used in automotive, industrial, communications and data systems. It can be used in a wide range of applications as it provides high- speed line-driving capability, strong bus sink and source current, extremely low power consumption, programmable I/O input delays, and a low logic swing.

Features

The SN75ALS197NSR is an 8-bit, octal bus transceiver with two-channel independent transceivers. It has an active-high enable pin allow it can perform both bidirectional and unidirectional communication. The chip features octal bus sinking and sourcing up to 50 mA, 16 ns pin-to-pin delay, programmable input delays, ECL compatible levels and low power consumption. The SN75ALS197NSR also offers regenerative feedback, input hold time and sink special bus current. With a voltage range of 4.5 V to 5.5 V, the chip is designed to support 3.0 V and 5.0 V I/O environment.

Applications

The SN75ALS197NSR is useful in a wide range of applications, such as system or user interface buses, data highways, local area networks, automotive and industrial systems. This chip can be integrated into a variety of systems, such as cellular phones, DVD players, and video game consoles. It is commonly used to buffer the input interfaces to ensure the consistent logic levels.

Working Principle

The SN75ALS197NSR uses two 8-bit data-in buses, two 8-bit data-out buses and two active-low control signals as input. The chip holds data on the data-in buses according to the control signals. When the control signals are activated, data is output from the data-out buses. The chip is enabled using the active-high enable input. When the enable input is active, the chip will output data. When the enable input is disabled, the chip will not output data. The SN75ALS197NSR uses 4.5 V to 5.5 V voltage range on the data-in buses and can operate in both 3.0 V and 5.0 V I/O environment.

Conclusion

The SN75ALS197NSR is an 8-bit, octal bus transceiver with two-channel independent transceivers. It is designed with both 5-volt and 3-volt technology to support 3.0 V and 5.0 V I/O environment. The chip can be used in a wide range of applications as it provides high- speed line-driving capability, strong bus sink and source current, extremely low power consumption, programmable I/O input delays, and a low logic swing. The SN75ALS197NSR is commonly used to buffer the input interfaces to ensure the consistent logic levels.

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