MaxLinear XR20M1170IG24-F

The XR20M11 70 is a high performance universal asynchronous receiver and transmitter (UART) with 64 byte TX and RX FIFOs and a selectable I²C/SPI slave interface. The XR20M1170 operates from 1.62 to 3.63 volts. The enhanced features in the XR20M1170 include a programmable fractional baud rate generator, an 8X and 4X sampling rate that allows for a maximum baud rate of 16Mbps 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 XR20M1170 is available in the 24-pin QFN, 16-pin QFN, 24-pin TSSOP and 16-pin TSSOP packages.

The XR20M1170 integrates a selectable I²C/SPI bus interface with an enhanced Universal Asynchronous Receiver and Transmitter (UART). The configuration registers set is 16550 UART compatible for control, status and data transfer. Additionally, the XR20M1170 has 64-bytes of transmit and receive FIFOs, automatic RTS/ CTS hardware flow control, automatic Xon/Xoff and special character software flow control, programmable transmit and receive FIFO trigger levels, infrared encoder and decoder (IrDA 1.0 and 1.1), programmable fractional baud rate generator with a prescaler of divide by 1 or 4, and data rate up to 16 Mbps with 4X sampling clock rate. The XR20M1170 is a 1.62V to 3.63V device. The XR20M1170 is fabricated with an advanced CMOS process.

• 1.62 to 3.6 Volt operation
• Selectable I²C/SPI interface
• SPI clock frequency up to:
  • 18MHz at 3.3V
  • 16MHz at 2.5V
  • 8MHz at 1.8V
• Full-featured UART
  • Data rate of up to 16Mbps at 3.3V
  • Data rate of up to 12.5Mbps at 2.5V
  • Data rate of up to 8Mbps at 1.8V
  • 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 (< 15uA at 3.3V)
  • General purpose I/Os
  • Full modem interface
• Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input

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