MAX3111E:SPI/MICROWIRE兼容的UART及±15kV ESD保护、RS-232收发器,内置电容

业内首款集成串行UART和双通道RS-232 IC

The MAX3110E/MAX3111E combine a full-featured universal asynchronous receiver/transmitter (UART) with ±15kV ESD-protected RS-232 transceivers and integrated charge-pump capacitors into a single 28-pin package for use in space-, cost-, and power-constrained applications. The MAX3110E/MAX3111E also feature an SPI™/QSPI™/MICROWIRE™-compatible serial interface to save additional board space and microcontroller (µC) I/O pins. A proprietary low-dropout output stage enables the 2-driver/2-receiver interface to deliver true RS-232 performance down to VCC = +3V (+4.5V for MAX3110E) while consuming only 600µA. The receivers remain active in a hardware/software-invoked shutdown, allowing external devices to be monitored while consuming only 10µA. Each device is guaranteed to operate at up to 230kbps while maintaining true EIA/TIA-232 output voltage levels. The MAX3110E/MAX3111E's UART includes a crystal oscillator and baud-rate generator with software-programmable divider ratios for all common baud rates from 300baud to 230kbaud. The UART features an 8-word-deep receive FIFO that minimizes processor overhead and provides a flexible interrupt with four maskable sources. Two control lines (one input and one output) are included for hardware handshaking. The UART and RS-232 functions can be used together or independently since the two functions share only supply and ground connections (the MAX3110E/MAX3111E are hardware- and software-compatible with the MAX3100 and MAX3222E).

关键特性
  • Integration Reduces Cost and Board Space
    • Integrated RS-232 Transceiver and UART in a Single 28–Pin Package
      • Guaranteed 230kbps Data Rate
      • SPI/QSPI/MICROWIRE-Compatible µC Interface
    • Internal Charge-Pump Capacitors—No External Components Required
  • Low-Power Operation Reduces Thermal Dissipation
    • True RS-232 Operation Down to VCC = +3V (MAX3111E)
    • Single-Supply Operation
      • +5V (MAX3110E)
      • +3.3V (MAX3111E)
    • 600µA Supply Current
    • 10µA Shutdown Supply Current with Receiver Interrupt Active
  • Hardware/Software-Compatible with MAX3100 and MAX3222E
MAX3110E、MAX3111E:典型工作电路
MAX3110E、MAX3111E:典型工作电路
应用
  • 手持/电池供电装置
  • 手持终端
  • 工业前面板接口
  • 销售终端机(POS)设备
  • 电信/网络诊断端口
数据手册DataSheet
语言下载文件备注
英文MAX3110E-MAX3111E.pdfRev 2; 05/2014
开发工具
技术资料
质量和环境数据
相关产品
  • MAX3140:SPI/MICROWIRE兼容的UART,集成真正失效保护的RS-485/RS-422收发器
  • MAX3100:SPI/MICROWIRE兼容UART
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX3111ECNI停止供货PDIP(N),;28引脚;289.5mm²0°C至+70°CRoHS/无铅:否
MAX3111ECNI+G36停止供货PDIP H;0°C至+70°C参考数据资料
MAX3111ECWI停止供货SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:否
MAX3111ECWI+G36生产中SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:无铅
MAX3111ECWI+TG36生产中SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:无铅
MAX3111ECWI-T停止供货SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:否
MAX3111EENI停止供货PDIP(N),;28引脚;289.5mm²-40°C至+85°CRoHS/无铅:否
MAX3111EENI+G36停止供货PDIP H;-40°C至+85°C参考数据资料
MAX3111EEWI停止供货SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:否
MAX3111EEWI+G36生产中SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX3111EEWI+TG36生产中SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:无铅
MAX3111EEWI-T停止供货SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:否
MAX3110E-MAX3111E.pdf MAX3111E
Determining Clock Accuracy Requirements for UART Communications MAX3206E
MAX3111E.pdf MAX3111E
MAX3110E-MAX3111E.pdf MAX3111E