SN65ALS1176PG4

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The SN65ALS1176PG4 is a quad RS-485 transceiver IC designed for differential serial data communications up to 10 Mbps. This device has four drivers and four receivers that are designed to comply with the upcoming requirements of commercial EIA/TIA-485-A standard. It is designed to provide flexibility and low power consumption in both receive and transmit modes. The SN65ALS1176PG4 is part of the TI interface family, which is a comprehensive portfolio of high-performance I/O devices for robust and flexible interconnects.

The SN65ALS1176PG4 application field includes transportation and industrial automation systems, building automation systems, medical devices, machine-to-machine communications, and fieldbus networks. It is also used in digital video surveillance systems and point-to-point interconnects for multiple nodes, as well as in point-to-multipoint networks, distributed control systems, testing equipment, and various other electrically noisy environments. This device is suitable for both half-duplex and full-duplex applications.

The SN65ALS1176PG4 features quadruple differential line-drivers and -receivers, an adjustable driver slew rate, a receiver input gain stage, adjustable local loopback and monitor functions, an adjustable input sensitivity threshold, and an over-voltage protection feature. It is equipped with four dedicated pins for enable/disable control of the receivers, an adjustable reference voltage pin, and two separate power supply pins, one for the transmitter and one for the receivers.

The four integrated drivers of the SN65ALS1176PG4 have an adjustable slew rate from 18 ns/V to 125 ns/V and are capable of driving up to 256 nodes with a maximum output current of 8 mA. The integrated receivers are also adjustable with a sensitivity threshold of 3.0 V to 7.5 V. The SN65ALS1176PG4 also features a programmable local loopback facility, which allows the loopback of data in order to ensure signal integrity. Furthermore, the device features an over-voltage protection feature, which prevents data loss due to excessive voltage.

In order to ensure signal integrity and to reduce crosstalk between different busses, the SN65ALS1176PG4 utilizes a switching matrix. This device\'s switching matrix allows for bus monitoring, dynamic bus arbitration, signal routing, signal buffering, and address selection for multi-point systems. Furthermore, the SN65ALS1176PG4\'s switching matrix allows for dynamic bus arbitration, which supports Dynamic Address Presence Detection. This feature allows for node addressing without the need for broadcast messages.

All in all, the SN65ALS1176PG4 is a great device for those who are looking for a flexible, low power, and high-performance device that can easily be integrated into their EIA/TIA-485-A compliant system. This device offers excellent signal integrity, robust switching capabilities, and a wide sight of applications. It is an ideal choice for applications in transportation, industrial automation, medical, surveillance, and distributed networks.

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