MAX3100EEE+T

The MAX3100EEE+T is a SPI/MICROWIRE compatible UART in 16 pin QSOP package. This is the first UART specifically optimized for small microcontroller based systems. By using an SPI/MICROWIRE interface for communication with host microcontroller (µC), the asynchronous I/O is suitable for use in RS232, RS485, IR and opto-isolated data links. IR-link communication is easy with device’s infrared data association (IrDA) timing mode. It includes a crystal oscillator and a baudrate generator with software programmable divider ratios for all common baud rates from 300 baud to 230k baud and two hardware handshaking control lines are included (one input and one output). A software or hardware invoked shutdown lowers quiescent current to 10µA while allowing the IC to detect receiver activity. This device is used in intelligent instrumentation, UART in SPI systems, small networks in HVAC or building control and low cost IR data links for computers/peripherals.

• Supply voltage range is 2.7V to 5.5V
• Operating temperature range from -40°C to 85°C
• IrDA SIR timing compatible
• Up to 230k baud with a 3.6864MHz crystal
• 8-word FIFO minimizes processor overhead at high data rates
• 9bit address-recognition interrupt
• Receive activity interrupt in shutdown
• Lowest power of 150µA operating current at 3.3V
• Schmitt-trigger inputs for opto-couplers
• TX and RTS(complementary) outputs sink is 25mA for optocouplers
• Handheld Instruments (PDAs, Palmtop); Intelligent Instruments; Isolated RS-232/RS-485: Directly Drives Optocouplers;
• Low-Cost IR Data Links for Computers/Peripherals; Small Networks in HVAC or Building Control; UART in SPI Systems

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