Product category:
Communications ICs (Wired)
News Release from: Nu Horizons Electronics Corp | Subject: XR19L220
Edited by the Electronicstalk Editorial
Team on 03 July 2006
UART and transceiver combine in modem
interface
An integrated device combines a full-featured single-channel UART with an RS232 transceiver to provide a complete modem interface.
New from DT Electronics, the XR19L220 is an integrated device that combines a full-featured single-channel UART with an RS232 transceiver to provide a complete modem interface The space-saving device operates from a single 3.3 or 5V supply and is fully compliant with EIA/TIA-232-F standards
This article was originally published on Electronicstalk on 7 Jul 2008 at 8.00am (UK)
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Operating at 25 Kbit/s with a worst-case 3kohm load, both of the device's RS232 outputs and inputs work reliably in harsh electrical environments of up to 115V.
Furthermore, they can survive 115kV electrostatic discharge on the RS232 lines while maintaining output levels.
The XR19L220 operates in active, partial sleep, full sleep or power save modes.
Each mode can be selected in hardware or software and the RS232 receivers remain active an all modes.
All functions are active in active mode.
In partial sleep mode the internal oscillator of the UART or charge pump of the RS232 transceiver is turned off and in full sleep mode both are turned off.
In power save mode, the core logic is isolated from the control signals to further reduce power consumption.
Applications include battery-powered and handheld devices, point-of-sale systems and industrial peripheral interfaces.
The device comes in a 40-pin QFN package and is available from stock.
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