MAX3110E：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

语言	下载文件	备注
英文	MAX3110E-MAX3111E.pdf	Rev 2; 05/2014

关键参数

Part Number	µP I/F	Channels	I_CC (mA)	V_SUPPLY (V)	Package/Pins	Oper. Temp. (°C)	Budgetary Price
Part Number	µP I/F	Channels	typ	V_SUPPLY (V)	Package/Pins	Oper. Temp. (°C)	See Notes
MAX3110E	SPI and Microwire Compatible	1	0.6	5	PDIP(N)/28 SOIC(W)/28	-40 to +85 0 to +70	$6.48 @1k
MAX3111E	SPI and Microwire Compatible	1	0.6	3.3	PDIP(N)/28 SOIC(W)/28	-40 to +85 0 to +70	$6.48 @1k

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX3110ECNI	停止供货		PDIP(N),；28引脚；289.5mm²	0°C至+70°C	RoHS/无铅：否
MAX3110ECNI+G36	停止供货		PDIP H；	0°C至+70°C	参考数据资料
MAX3110ECWI	停止供货		SOIC(W),；28引脚；192.8mm²	0°C至+70°C	RoHS/无铅：否
MAX3110ECWI+G36	生产中		SOIC(W),；28引脚；192.8mm²	0°C至+70°C	RoHS/无铅：无铅
MAX3110ECWI+TG36	生产中		SOIC(W),；28引脚；192.8mm²	0°C至+70°C	RoHS/无铅：无铅
MAX3110ECWI-T	停止供货		SOIC(W),；28引脚；192.8mm²	0°C至+70°C	RoHS/无铅：否
MAX3110EENI	停止供货		PDIP(N),；28引脚；289.5mm²	-40°C至+85°C	RoHS/无铅：否
MAX3110EENI+G36	停止供货		PDIP H；	-40°C至+85°C	参考数据资料
MAX3110EEWI	停止供货		SOIC(W),；28引脚；192.8mm²	-40°C至+85°C	RoHS/无铅：否
MAX3110EEWI+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？
MAX3110EEWI+TG36	生产中		SOIC(W),；28引脚；192.8mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX3110EEWI-T	停止供货		SOIC(W),；28引脚；192.8mm²	-40°C至+85°C	RoHS/无铅：否