SN65HVD1786P

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The SN65HVD1786P is a bus transceiver designed for applications which require high speed and/or multiple power domains for CAN communication protocol used in automotive and embedded control applications. It is ideal for use with microcontrollers and DSPs that require CAN communication. The SN65HVD1786P supports true differential, non-return-to-zero communication over 2-wire differential bus. It is also capable of operating in a single-ended mode (single wire) through the integrated differential receiver. The device has dedicated pin control signals that provide the power level shift necessary to allow the transceiver to be interfaced to various voltage domains.

The SN65HVD1786P belongs to a class of integrated circuit devices intended for interfacing between a Controller Area Network (CAN) bus and a host processor, typically a microcontroller. CAN is a robust communications protocol for embedded systems, based on differential drive and arbitration on the data link layer. This device interface independent of any processor, performing as a receiver and driver of the differential data link layer in the CAN protocol.

The integrated circuit provides easy interconnection between a host processor and the physical layer of the CAN bus, with differential transmission of the data signals. The circuit also provides reliable protection of the microcontroller against disturbances from the attached bus. It is designed for single or multiple point application and is capable of handling data rates up to 1 Mbps.

The SN65HVD1786P transceiver is built using BiCMOS technology. It is composed of a differential driver, a differential receiver and a transceiver logic, as well as a transmit and receive receive enable logic. The start-of-frame (SOF) pin is used to detect the start of frame pulses, while the CANACK and CANDONE pins are used to acknowledge frame transfers. The device also incorporates a buffer logic to enable reception of words with different message ID together with built-in protection against disconnected bus.

The SN65HVD1786P transceiver has the following features that enable it to be used in various applications.

• The device features integrated high-speed differential receivers and drivers, and can handle data rates of up to 1 Mbps.
• It supports single or multi-point applications and is abl to work with up to 16 nodes on the bus.
• The integrated circuit provides reliable protection of the host processor, and robust operation against disturbances from the attached bus.
• The integrated transceiver logic supports the CAN protocol, and provides error checking, CRC verification and acknowledge messages.

The integrated circuit is ideal for applications where high speed data transfer and/or multiple power domains are necessary. The high-speed transceiver logic, buffering logic and protection logic make the SN65HVD1786P perfect for use in industrial, automotive, embedded control and data acquisition systems.

The main application for the SN65HVD1786P is in automotive and embedded control applications. It can be used in combination with a microcontroller and DSPs that require CAN communication. The SN65HVD1786P also provides the power level shift necessary to allow the transceiver to be interfaced to various voltage domains. In addition, it offers protection against disconnected bus lines and enables reception of words with different message ID.

In summary, the SN65HVD1786P is a CAN transceiver suited for high-speed, multiple power domain applications. It provides reliable protection of the host processor and robust operation against disturbances from the attached bus. Its integrated receiver and driver support data rates of up to 1Mbps, while its buffer logic enables reception of words with different message ID. This makes it an ideal choice for a wide range of automotive, industrial, embedded control and data acquisition systems.

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