MAX3140 Datasheet Spi/microwire-compatible Uart

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-1453; Rev 0; 6/99 SPI/MICROWIRE-Compatible UART with Integrated True Fail-Safe RS-485/RS-422.

Datasheet Details

Part number	MAX3140
Manufacturer	Maxim Integrated (now Analog Devices)
File Size	366.50 KB
Description	SPI/MICROWIRE-Compatible UART
Datasheet	MAX3140_MaximIntegratedProducts.pdf

General Description

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 by featuring an SPI™/QSPI™/MICROWIRE™-compatible serial interface.

It is pin-programmable for configuration in all RS-485/RS-422 networks.

Key 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 +5V supply and typically consumes only 645µA with the receiver active. Hardware-invoked shutdown reduces supply current to only 20µA. The UART and RS-485/RS-422 functions can be used together or indepen.

MAX3140 Distributor

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number	Description
MAX314	10 / Quad / SPST / CMOS Analog Switches
MAX310	CMOS RF/Video Multiplexers
MAX3100	SPI/Microwire-Compatible UART in QSOP-16
MAX311	Quad SPST CMOS Analog Switches
MAX3110E	RS-232 Transceivers
MAX3111E	RS-232 Transceivers
MAX312	10 / Quad / SPST / CMOS Analog Switches
MAX3120	Low-Profile / 3V / 120A / IrDA Infrared Transceiver
MAX313	10 / Quad / SPST / CMOS Analog Switches
MAX3130	3V to 5.5V / IrDA Infrared Transceiver with Integrated RS-232 Interface