SN75C3232EPWG4

SN75C3232EPWG4 is a high-speed, low-power transceiver designed to help reduce system cost and board space in communications applications. This is a dual-channel transceiver designed to support full-duplex systems. It is suitable for Ethernet, and provides a two-pin differential line interface, one bi-directional mezzanine port, and four additional pins to configure the bi-directional mezzanine port.

Application field

The SN75C3232EPWG4 can be used in application such as Ethernet, Fiber Optic Networks, Telecommunication Networks and Industrial Automation. With its transceiver capability, the SN75C3232EPWG4 provides a low-power solution for Ethernet applications as well as for industrial automation. It is also an ideal choice for embedded and Internet of Things (IoT) based applications. It offers low latency, and provides robust and reliable communication interface in harsh environment.

Working principle

The SN75C3232EPWG4 transceiver works in two modes - full-duplex and half-duplex. In full-duplex mode, the device transmits and receives data simultaneously on the two-pin differential line interface. The two-pin differential line interface is designed such that the data is transmitted on one line and received on the other line. In half-duplex mode, the device either transmits or receives data at a time on the two-pin differential line interface. The bi-directional mezzanine port is usually configured as output in the full-duplex mode, while it is configured as input in the half-duplex mode.

The SN75C3232EPWG4 is based on Digital-to-Analog Conversion (DAC) technology and uses driver circuits for bi-directional communications. These driver circuits can send signals on the mezzanine ports depending on the configuration in the full-duplex or half-duplex mode. The device supports Open Loop Crossover Control (OLCC) for reliable interoperability with the differential line interface. OLCC is a method of enabling the circuitry on the receiver side to detect when the transmitter has sent a high voltage level in an extended mode called‘ crossover’. The device also supports noise-canceling Fuzzy Logic (FLT) circuitry for improved performance in noisy environments.

The device features burst start and burst count modes to reduce latency in high-speed applications. In burst start mode, the device automatically sends a start-of-burst signal when it receives start-of-burst signal from the mezzanine port. In burst count mode, the device transmits and receives data according to the configured burst count.

The SN75C3232EPWG4 also supports a range of advanced features including stream mode, Receiver Identification Technology (RIT) for flexible protocol support, auto acknowledge for improved robustness, and auto-retransmission for improved message integrity.