Industry Firsts - Integrated UART and RS-232 Product Family

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XR19L220-Single Channel Integrated UART and RS-232 Transceiver

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 250Kbps data rate with worst case 3KΩ 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 250Kbps 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 1000-4-2, Air-Gap Discharge +/- 8kV - IEC 1000-4-2, 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

APPLICATIONS Battery powered equipment Handheld and mobile devices Handheld terminals Industrial peripheral interfaces Point-of-Sale (POS) systems

 

 

XR20V2170 - I²C/SPI UART with 64-Byte FIFO and RS-232 Transceiver

The XR20V2170 (V2170) is a high performance universal asynchronous receiver and transmitter (UART) with 64-byte TX and RX FIFOs, a selectable I²C/SPI slave interface and RS-232 transceiver. The V2170 operates from 2.25 to 3.63V. It is software compatible to the SC16CIS760/750/740, but with additional features such as a programmable fractional baud rate generator, and 8X and 4X sampling rate that allows for a maximum baud rate of 1Mbps at 3.3V. The standard features include 16 selectable TX and RX FIFO trigger levels, automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control, and a complete modem interface. Onboard registers provide the user with operational status and data error flags. An internal loopback capability allows system diagnostics. The V2170 is available in the 40-pin QFN.

 

FEATURES 2.25 to 3.6V operation S/W compatible to Philips' SC16IS760/750/740 Selectable I2C/SPI Interface Full featured UART Data rate of up to 1Mbps at 3.3V Data rate of up to 1Mbps at 2.5V Fractional baud rate generator Transmit and Receive FIFOs of 64-bytes 16 selectable TX and RX FIFO trigger levels Automatic hardware (RTS/CTS) flow control Automatic software (Xon/Xoff) flow control Halt and Resume transmission control Automatic RS-485 half-duplex direction control output via RTS# Automatic sleep mode (< 15uA at 3.3V) General Purpose I/Os Full modem interface Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input 40-QFN packages

APPLICATIONS Portable appliances Battery operated devices Cellular data devices Factory automation and process controls

 

 

 Featured Products

Part Number		Description	Data Sheet	App. Notes
XR19L220IL40-F		Single Channel Integrated UART And RS-232 Transceiver
XR20V2170IL40-F		I<sup>2</sup>C/SPI UART with 64-Byte FIFO and RS-232 Transceiver

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