MAX3140CEI+

MAX3140CEI+ is a complete universal asynchronous receiver-transmitter (UART) and a true fail-safe RS485/RS-422 transceiver combined in a single 28-pin QSOP package for space, cost, and power-constrained applications. This saves additional board space as well as microcontroller (µC) I/O pins by featuring a SPI™/QSPI™/MICROWIRE™-compatible serial interface. It is pin-programmable for configuration in all RS-485/RS-422 networks. The MAX3140 includes a single RS-485/RS-422 driver and receiver featuring true fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This feature provides immunity to faults without requiring complex termination. Applications include industrial-control local area networks, HV AC and building control, point-of-sale devices, transceivers for EMI-sensitive applications, embedded systems, and intelligent instrumentation.

• SPI/MICROWIRE-compatible interface saves µC I/O pins
• True fail-safe receiver output eliminates complex network termination
• Programmable up to 230kbaud with a 3.6864MHz crystal
• 8-word receive FIFO minimizes processor overhead
• 9-bit address-recognition interrupt
• Allows up to 256 transceivers on the bus
• Hardware/software-compatible with MAX3100 and MAX3089
• Supply voltage range from 4.75 to 5.25V
• 28 QSOP package
• 0°C to +70°C temperature range

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party