EXAR, the market leader, offers the industry's broadest line-up of
UART and serial protocol transceivers solutions.
With over 200 devices, wide 2.25 to 5.5V power supply range, 1 to 128 bytes of FIFO and compliance with the universal 3.3/5V PCI, Intel and Motorola bus interfaces, including single protocol ICs that support RS-232, RS-422 or RS-485 as well as dual and multi-protocol ICs that support from 2 to 8 of the most popular interface standards with a single IC, Exar has already done the difficult work for you.
The XR19L220 (L220) is a highly integrated device that combines a full-featured single channel Universal Asynchronous Receiver and Transmitter (UART) and an RS-232 transceiver.
The L220 is designed to operate with a single 3.3V or 5V power supply. The L220 is fully compliant with EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply. The device operates at 250 Kbps data rate with worst case 3K ohms load.
Both RS-232 driver outputs and receiver inputs can operate in harsh electrical environments of +/-15V without damage and can survive multiple +/-15kV ESD on the RS-232 lines, while maintaining RS-232 output levels.
The L220 operates in four different modes: Active, Partial Sleep, Full Sleep and Power-Save. Each mode can be invoked via hardware or software.
Features
- Meets true EIA/TIA-232-F Standards from +3.0V to +5.5V operation
- Up to 250 Kbps data transmission rate
- 45us sleep mode exit (charge pump to full power)
- ESD protection for RS-232 I/O pins at
- +/-15kV - Human Body Model
- +/-15kV - IEC 61000-4-2, Air-Gap Discharge
- +/- 8kV - IEC 61000-4-2, Contact Discharge
- Software compatible with industry standard 16550 UART
- Intel/Motorola bus select
- Complete modem interface
- Sleep and Power-save modes to conserve battery power
- Wake-up interrupt upon exiting low power modes
- Pb-Free, RoHS Compliant Versions Offered