SP3245EEY-L/TR

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SP3245EEY-L/TR is a high-performance, low-power, and medium-voltage EIA/TIA-232 and RS-485 transceiver that is designed to support low power and exchange rate from 300bps to more than 250kbps. It is used for communication interface circuit in data transmission system of computers and communication meter, electronic scales, fire detectors, POS systems, and other digital devices.

The SP3245EEY-L/TR application field includes data communication interface, secure access monitoring, handheld computers, home and industrial automation, industrial process control, barcode scanners, and system monitoring, among others. It is also widely used in medical instrument, industrial automation equipment, terminals, building automation, POS machines and environmental security.

The SP3245EEY-L/TR transceiver is an integrated driver and receiver that operates from 3.3V single power supply with minimal external components. It is designed to interface directly to the RS-232 and RS485 signals and requires no external components, eliminating the need for external power down sequencing, as well as providing power-saving and improved reliability.

The operating supply voltage range is from 3.0V to 3.6V. Its typical power dissipation is 0.4mW at logic low, 0.6mW at logic high and 0.2mW in shutdown, making it an ideal choice for applications requiring low power operation. It also has a maximum input voltage clamp, which helps protect the device from overvoltage conditions.

The SP3245EEY-L/TR transceiver also features an integrated 1/8-rate data strobe (DS) output, which allows data to be transmitted on the RS-485 bus at a transfer rate of 250kbps, and a 30-mA bus fault short circuit protection function, which prevents constant current supply damage due to short-circuiting.

The adjustable slew rate control pin and the driver enable pin can be used to reduce the EMI radiation and allows impedance matching with the line. The driver enable pin can be used to enable or disable the driver, providing a power-on reset, or to enable the driver when transmitting data. The adjustable slew rate control pin allows the transmitter and receiver output slew-rate to be adjusted up to 250kbps.

In summary, the SP3245EEY-L/TR transceiver is an excellent integrated driver and receiver for applications that require minimal power operation. With the integrated 1/8-rate data strobe output and adjustable slew rate control pin, it provides better power efficiency and reliability for communication interface applications.

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