DESCRIPTION

The DS275 Line-Powered RS-232 Transceiver Chip is a CMOS device that provides a low-cost, very low-power interface to RS-232 serial ports. The receiver input translates RS-232 signal levels to common CMOS/TTL levels. The transmitter employs a unique circuit which steals current from the receive RS- 232 signal when that signal is in a negative state (marking).

FEATURES

● Low-power serial transmitter/receiver for battery-backed systems

● Transmitter steals power from receive signal line to save power

● Ultra-low static current, even when connected to RS-232-E port

● Variable transmitter level from +5 to +12 volts

● Compatible with RS-232-E signals

● Available in 8-pin, 150 mil wide SOIC package (DS275S)

● Low-power CMOS