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MFG:MAXIM  Package Cooled:SOP  D/C:02+  

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Part Number: MAX3100

 

MFG: MAXIM

Package Cooled: SOP

D/C: 02+

Description: The MAX3100 universal asynchronous receiver transmit ter (UART) is the first UART specifically optimized for small micr...


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MAX3100 General Description


The MAX3100 universal asynchronous receiver transmit ter (UART) is the first UART specifically optimized for small microcontroller-based systems. Using an SPI™/Microwire™ interface for communication with the host microcontroller (µC), the MAX3100 comes in a compact 16-pin QSOP. The asynchronous I/O is suitable for use in RS-232, RS-485, IR, and opto-isolated data links. IR-link communication is easy with the MAX3100's infrared data association (IrDA) timing mode.

The MAX3100 includes a crystal oscillator and a baudrate generator with software-programmable divider ratios for all common baud rates from 300 baud to 230k baud. A software- or hardware-invoked shutdown lowers quiescent current to 10µA, while allowing the MAX3100 to detect receiver activity.

An 8-word-deep first-in/first-out (FIFO) buffer minimizes processor overhead. This device also includes a flexible interrupt with four maskable sources, including address recognition on 9-bit networks. Two hardware-handshaking control lines are included (one input and one output). The MAX3100 is available in 14-pin plastic DIP and small, 16-pin QSOP packages in the commercial and extended temperature ranges.

MAX3100 Maximum Ratings

VCCto GND.............................................................................+6V
Input Voltage to GND
(CS , SHDN , X1, CTS , RX, DIN, SCLK)..........-0.3V to (VCC+ 0.3V)
Output Voltage to GND
(DOUT, RTS , TX, X2) ..................................-0.3V to (VCC+ 0.3V)
IRQ ...........................................................................-0.3V to 6V
TX, RTS Output Current......................................................100mA
X2, DOUT, IRQ Short-Circuit Duration
(to VCCor GND).............................................................Indefinite

MAX3100 Features

16-Pin QSOP Package (8-pin SO footprint):
    Smallest UART Available
Full-Featured UART:
    -IrDA SIR Timing Compatible
    -8-Word FIFO Minimizes Processor
        Overhead at High Data Rates
    -Up to 230k Baud with a 3.6864MHz Crystal
    -9-Bit Address-Recognition Interrupt
    -Receive Activity Interrupt in Shutdown
SPI/Microwire-Compatible µC Interface
Lowest Power:
    -150µA Operating Current at 3.3V
    -10µA in Shutdown with Receive Interrupt
+2.7V to +5.5V Supply Voltage in Operating Mode
Schmitt-Trigger Inputs for Opto-Couplers
TX and RTS  Outputs Sink 25mA for Opto-Couplers

MAX3100 Typical Application

Hand-Held Instruments
Intelligent Instrumentation
UART in SPI Systems
Small Networks in HVAC or Building Control
Isolated RS-232/RS-485: Directly Drives Opto-Couplers
Low-Cost IR Data Links for Computers/Peripherals

MAX3100 Connection Diagram

MAX3100 Connection Diagram

MAX3100 datasheet

MAX3100
PDF/DataSheet Download

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