SP3232EUCT-L/TR

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The SP3232EUCT-L/TR is a high-speed, low power, true RS-232 transceiver IC. It integrates all the functionality of a full-duplex RS-232 transceiver into a single package, making it the ideal solution for cost and space-constrained designs. This device is targeted at applications such as point-of-sale terminals, medical instruments, test and measurement equipment, and telecom systems employing both short haul and long haul transmission links.

The SP3232EUCT-L/TR device is an integrated, dual-channel RS-232 transceiver that meets the EIA/TIA-232F standard and supports data rates up to 500k baud. The RS-232 interface is designed to provide full-duplex asynchronous serial data communication with handshake, and it supports bipolar signaling. It features an on-board, low-skew voltage-level translator for each transmit and receive path, allowing for a simple 3.3V to 5V powered design, reducing VCC requirements and power consumption.

The SP3232EUCT-L/TR includes operational modes that are supported by all-or-none logic signals. The device has separate RXD and CHARGED inputs and outputs. For low-speed operation, the CHARGE input is used to control the high-speed output drivers. This ensures that when CHARGE is low, the output drivers are turned off, thereby preventing fast-edge differential signals from exiting the IC. The LON pin is used to logic-disable all outputs, putting the chip in the receive mode with minimal power consumption. The RTS pin is used to enable the TXD driver when it is high.

The SP3232EUCT-L/TR has two main operating modes: master mode and slave mode. In master mode, the device works like a conventional full-duplex multi-drop link. It initiates data transmission and receives data from multiple nodes via the RXD and TXD pins. In slave mode, the device functions as a passive receiver and transmitter. It only responds to commands from the master via the RXD pin, and transmits data when enabled by the CHARGED or LON pin.

The SP3232EUCT-L/TR implements signal conditioning and level shifting on the receive pins in order to perform EIA/TIA-232F compliance. This includes voltage level translation, signal filtering, signal conditioning, and level shifting. The SP3232EUCT-L/TR also includes an internal RXD receiver with a combination of software and hardware-controlled adaptive signal shaping. This allows it to be used in long-haul transmission applications with uncompensated cable lengths up to 2,500 feet.

The SP3232EUCT-L/TR is an ideal solution for high-speed, low-power RS-232 data communication applications. It provides a simple and cost-effective way to design low power RS-232 point-to-point, point-to-multipoint, and multipoint-to-multipoint communication links. It features a 3.3V to 5V integrated voltage translator and low-skew output buffers for high-speed data transmission. Its small footprint and low power consumption make it an ideal solution for space-constrained and battery-operated products such as battery-powered hand held terminals and mobile POS systems.

The SP3232EUCT-L/TR is a versatile, off-the-shelf solution for any low-power, RS-232 communication application. Its wide range of features makes it a solution of choice for any design requiring robust, high-speed, low-power RS-232 data transmission.

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