MAX3140 Datasheet - Maxim

MAX3140 SPI/MICROWIRE-Compatible UART

The MAX3140 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. The MAX3140 saves additional board space as well as microcontroller (µC) I/O pins.

MAX3140 Features

* an 8-word-deep receive FIFO that minimizes processor overhead and provides a flexible interrupt with four maskable sources, including address recognition on 9-bit networks. Two control lines are included for hardware handshaking

* one input and one output. The MAX3140 operates from a single +5

MAX3140_MaximIntegratedProducts.pdf