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Product Variant Information section
Product Specification Section
Pricing Section

Stock : 3 773

Sur commande : 0
Stock d'usine :Stock d'usine : 0
Délai d'usine : N/A
Commande minimale : 1
Multiples de : 1
Quantité Prix Internet
1 $3.46
190 $2.44
285 $2.37
380 $2.33
475+ $2.29
Total :

3,46 $

Attributes Table
Data Rate 16Mbps
No of Functions / Channels 1
Interface Circuit Type I2C/SPI
Supply Voltage-Nom 1.62V to 3.6V
Supply Current 500µA
Power Dissipation 0.5W
Clock Frequency-Max 64MHz
Operating Temperature -40°C to +85°C
Storage Temperature Range -65°C to +150°C
Fonctionnalités et applications

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


  • 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