SN65ALS176DRG4

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The SN65ALS176DRG4 is an 8-bit transceiver with three-state outputs commonly used in data transmission and reception with multiple host and peripheral devices. This device combines line drivers, line receivers and logic gates in a single integrated chip, making it an ideal choice for applications requiring parallel data transmission and reception over short distances.

The SN65ALS176DRG4 is designed to operate from a single supply voltage, typically 5V DC or higher. It contains two separate data buses named A and B. The bus A has eight non-inverting line drivers and bus B has eight corresponding non-inverting line receivers. An additional four inverting line drivers are available on bus B for use in those applications where a greater number of drivers is necessary. The drivers and receivers have built-in fail-safe circuits which ensure that outputs are in a high-impedance state whenever the device is powered down or not given inputs or control signals.

The SN65ALS176DRG4 is controlled by two independent active-low Enable inputs, one controlling the A bus drivers and one controlling the B bus receivers. When either Enable input is low, the associated bus drivers or receivers are disabled.

The SN65ALS176DRG4 has a wide range of applications, including asynchronous and synchronous systems, communications networks, power supplies, remote sensing systems, robotics, and more. Depending on the application, this device can be used to either transmit or receive data between two bus systems making use of the same devices. It is also used as a bus transceiver for digital communication between microcontroller devices, or for digital interfacing between different types of memory systems.

The SN65ALS176DRG4 works on the principle of transferring data from one bus system to another in either unidirectional (A to B only) or bidirectional (A to B and B to A) directions. When transmit control (TE) is held active, data is transferred from the A bus to the B bus using the driver devices and the receivers detect the signals on the corresponding B bus lines. Similarly, when receive control (RE) is activated, data is transferred from the B bus to the A bus and the drivers on the corresponding A bus lines detect the signals.

To minimize power consumption, the SN65ALS176DRG4 can be put into sleep mode by asserting both the TE and RE controls, thereby disabling both the drivers and the receivers. This device also features an output enable control to allow the device to be shut down without disabling the bus A and B lines. When the Output Enable pin is inactive, the tri-state buffers that drive both buses will not accept any input and no output will be produced.

In sum, the SN65ALS176DRG4 is a versatile and highly integrated bus transceiver suitable for use in many applications where two devices need to communicate with each other over short distances. With its high levels of integration and its active low enable inputs, this device can easily and efficiently transfer data in either unidirectional or bidirectional configurations.

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