MaxLinear | XR20M1170IG16-F

The XR20M1170¹ (M1170) 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 M1170 operates from 1.62 to 3.63 volts. The enhanced features in the M1170 include 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 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 M1170 is available in the 28-pin QFN, 24-pin QFN, 16-pin QFN, 24-pin TSSOP and 16-pin TSSOP packages. The 28-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: ¹Covered by U.S. Patent #5,649,122

Features

• 1.62 to 3.6 Volt Operation
• Selectable I²C/SPI Interface
• Full-featured UART
  • Data rate of up to 16 Mbps at 3.3V
  • Data rate of up to 12.5 Mbps at 2.5V
  • Data rate of up to 8 Mbps 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 (< 15 uA at 3.3V)
  • General Purpose I/Os
  • Full modem interface
• Crystal oscillator (up to 24MHz) or external clock (up to 64MHz) input
• 28-QFN, 24-QFN, 16-QFN, 24-TSSOP, 16-TSSOP packages
• Pb-Free, RoHS Compliant Versions Offered