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XR20M1172

MaxLinear
Part Number XR20M1172
Manufacturer MaxLinear
Description TWO CHANNEL I2C/SPI UART
Published Sep 1, 2018
Detailed Description XR20M1172 Two Channel I2C/SPI UART with 64-Byte FIFO February 2, 2022 Rev. 1.2.2 GENERAL DESCRIPTION The XR20M11721 i...
Datasheet PDF File XR20M1172 PDF File

XR20M1172
XR20M1172


Overview
XR20M1172 Two Channel I2C/SPI UART with 64-Byte FIFO February 2, 2022 Rev.
1.
2.
2 GENERAL DESCRIPTION The XR20M11721 is a high performance two channel universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs and a selectable I2C/SPI slave interface.
The XR20M1172 operates from 1.
62 to 3.
63 volts.
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.
Additional enhanced features includes a programmable fractional baud rate generator and 8X and 4X sampling rate that allows for a maximum baud rate of 16 Mbps at 3.
3V.
The XR20M1172 is available in the 32-pin QFN and 28-pin TSSOP packages.
The 32-pin QFN package has the EN485# and ENIR# pins to allow the UART to power-up in the Auto RS485 mode or the Infrared mode.
NOTE: 1 Covered by U.
S.
Patent #5,649,122 APPLICATIONS  Portable Appliances  Battery-Operated Devices  Cellular Data Devices  Factory Automation and Process Controls FEATURES  1.
62 to 3.
6 Volt Operation  Selectable I2C/SPI Interface  SPI clock frequency up to ■ 18 MHz at 3.
3 V ■ 16 MHz at 2.
5 V ■ 8 MHz at 1.
8 V  Full-featured UART ■ Data rate of up to 16 Mbps at 3.
3 V ■ Data rate of up to 12.
5 Mbps at 2.
5 V ■ Data rate of up to 8 Mbps at 1.
8 V ■ 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# ■ Wireless Infrared (IrDA 1.
0 and 1.
1) Encoder/ Decoder ■ Automatic sleep mode (< 30 uA at 3.
3V) ■ General Purpose I/Os ■ Full modem interface  Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input  32-...


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