MAX3100中文资料SPI/MICROWIRE兼容UART数据手册ADI规格书

描述 Description

The MAX3100 universal asynchronous receiver transmitter (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 24-pin-TQFN and 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 baud-rate 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.

特性 Features

• Small TQFN and QSOP Packages 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

应用 Application

• 手持式仪表(PDA、掌上电脑)
• 智能仪表
• 隔离型RS-232/RS-485：直接驱动光耦
• 低成本IR数据链接，用于计算机/外设
• HVAC或楼宇控制中的小型网络
• SPI系统中的UART

简介

MAX3100属于集成电路（IC）的控制器。由制造生产的MAX3100控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。