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 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
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；289.5mm² | 0°C至+70°C | RoHS/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；192.8mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX3111ECWI+G36 | 生产中 | | SOIC(W),；28引脚；192.8mm² | 0°C至+70°C | RoHS/无铅：无铅 |
| MAX3111ECWI+TG36 | 生产中 | | SOIC(W),；28引脚；192.8mm² | 0°C至+70°C | RoHS/无铅：无铅 |
| MAX3111ECWI-T | 停止供货 | | SOIC(W),；28引脚；192.8mm² | 0°C至+70°C | RoHS/无铅：否 |
| MAX3111EENI | 停止供货 | | PDIP(N),；28引脚；289.5mm² | -40°C至+85°C | RoHS/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°C | RoHS/无铅：否 |
| MAX3111EEWI+G36 | 生产中 | | SOIC(W),；28引脚；192.8mm² | -40°C至+85°C | RoHS/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°C | RoHS/无铅：无铅 |
| MAX3111EEWI-T | 停止供货 | | SOIC(W),；28引脚；192.8mm² | -40°C至+85°C | RoHS/无铅：否 |
