Datasheet Summary
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JUNE 2007
TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
REV. 1.0.0
GENERAL DESCRIPTION
The XR19L402 (L402) is a highly integrated device that bines a full-featured two channel Universal Asynchronous Receiver and Transmitter (UART) and RS485 transceivers. The L402 is designed to operate with a single 3.3V or 5V power supply. The L402 is fully pliant with RS-485 Standards. The L402 operates in four different modes: Active, Partial Sleep, Full Sleep and Power-Save. Each mode can be invoked via hardware or software. Upon power-up, the L402 is in the Active mode where the UART and RS-485 transceiver function normally. In the Partial Sleep mode, the...