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XR20M1172

Features: •1.62 to 3.6 Volt Operation•Selectable I2C/SPI Interface•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 T...

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SeekIC No. : 004549247 Detail

XR20M1172: Features: •1.62 to 3.6 Volt Operation•Selectable I2C/SPI Interface•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...

XR20M1172 Data Sheet

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Part Number:
XR20M1172
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

•1.62 to 3.6 Volt Operation
•Selectable I2C/SPI Interface
•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-QFN and 28-TSSOP packages




Application

•Portable Appliances
•Battery-Operated Devices
•Cellular Data Devices
•Factory Automation and Process Controls




Pinout

Connection Diagram




Specifications

Specifications
CH 2
CPUInterface I2C/SPI
Data Rate@5/3.3/2.5V na/16/12.5
Tx/RxFIFO(Bytes) 64/64
Tx/RxFIFOCtrs Yes
Tx/RxFIFOINT Trig Yes
AutoRTS/CTS Yes
IrDaSup Yes
5VTolInputs No
Sup V 1.62-3.63
Pkgs QFN-32, TSSOP-28





Description



The XR20M1172¹ (M1172) 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. It is software compatible to the SC16CIS762/752, 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 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 M1172 is available in the 32-pin QFN, 28-pin TSSOP and 20-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: ¹Covered by U.S. Patent #5,649,122

For UART technical support or to obtain an IBIS model for this product, please email Exar's UART Technical Support group.






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