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Description

FULL DATA SHEET (PDF, 136kB) Download   E-Mail The DS275 Line-Powered RS-232 Transceiver Chip derives power from the data line providing an extremely low-cost and low-power RS-232 serial port interface. The receiver input translates RS-232 signal levels to common CMOS/TTL levels. The transmitter circuit steals current from the receive RS-232 signal when that signal is in a negative state (marking). Since most serial communication ports remain in a negative state statically, using the receive signal for negative power greatly reduces the DS275's static power consumption. The DS275's power-saving interface is ideal for connecting battery-powered systems such as laptop computers, remote sensors, and portable instrumentation.

Key Features

Low-power serial transmitter/receiver for battery-powered systems Power-saving transmitter steals power from receive signal Ultra-low-static current, even connected to RS-232-E port Transmitter level varies from +5 to +12V Compatible with RS-232-E signals Low-power CMOS

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