SN75DP139RSBR Integrated Circuits (ICs)

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The SN75DP139RSBR chip is a multi-channel data transceiver integrated circuit designed for data transfer between bus systems with different electrical characteristics. With its robust design and performance, this chip is suitable for a variety of applications, ranging from interfacing between high speed and low voltage devices, such as USB and I²C, to interfacing between analog signal processing systems and other digital systems.

In its basic form, SN75DP139RSBR is capable of interfacing two 8-bit parallel busses which operate at different signal levels. The transceiver consists of two independent transceivers, one operating in the upstream direction and one operating in the downstream direction.Each transceiver has its own output driver, input receiver, and active-low enable (EN) input.

The operation of the chip is based on the principle of current sourcing and loating. To transmit information, data is sent from the upstream low voltage side to the high voltage side, where it is converted and then sent to the downstream high voltage side. On the other side, the incoming data is converted to the low voltage side, before it can be received by the upstream bus.

SN75DP139RSBR enables flexibility in system design, as it supports widths of 1 to 16-bits for both input and output. This means that different sized busses can be utilized for both input and output, thereby allowing the chip to effectively bridge the gap between different bus systems.

The SN75DP139RSBR can be used in a variety of applications such as in embedded systems, digital signal processors, personal computers and appliances, where it serves as an interface between different electrical devices. This can also be used to interface different types of buses – such as I2C and USB – and also to facilitate plug & play compatibility between devices.

The SN75DP139RSBR also contains a slew rate limiter to reduce the output rise-time of the bus system it is driving. This essentially prevents any voltage spikes or current surges that could damage the output device by capping the output signal rise time. This feature is especially important for systems that require accurate data transfer operations.

The SN75DP139RSBR is also designed to maximize noise immunity. This is achieved by reducing electromagnetic noise by utilizing integrated capacitive loads for each output pin. The chip also contains an internal power on reset circuit which powers up the chip in the proper sequence and initiates the internal logic.

In conclusion, the SN75DP139RSBR is a versatile, robust and flexible data transceiver chip that offers exceptional performance. Its range of features and low power consumption make it ideal for a variety of applications, including interfacing between high-speed and low voltage bus systems. It is designed to maximize noise immunity and its slew rate limiter feature protects output devices from current spikes and surges.

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