MAX3385E:±15kV ESD保护、3.0V至5.5V、低功耗、高达250kbps、真RS-232收发器

The MAX3385E is a 3V-powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model. The transceiver has a proprietary low-dropout transmitter output stage, delivering true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. Each device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. The MAX3385E has two receivers and two drivers. It features a 1µA shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers can remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1µA supply current. The MAX3385E is available in a space-saving SSOP package in either the commercial (0°C to +70°C) or extended-industrial (-40°C to +85°C) temperature range.

关键特性
  • ESD Protection for RS-232 I/O Pins
    • ±15kV-Human Body Model
    • ±8kV-IEC 1000-4-2, Contact Discharge
    • ±15kV-IEC 1000-4-2, Air-Gap Discharge
  • Latchup Free
  • 300µA Supply Current
  • 1µA Low-Power Shutdown with Receivers Active
  • 250kbps Guaranteed Data Rate
  • 250µs Time to Exit Shutdown with 3-kilohm Load on V+
  • 6V/µs Guaranteed Slew Rate
  • Meets EIA/TIA-232 Specifications Down to 3.0V
功能框图
MAX3385E:典型工作电路
产品应用
  • 电池供电应用
  • 手持式装置
  • 外设
  • 打印机
关键参数
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
ESD Protect.
(±kV)
Rx Active in ShutdnPackage/Pins
mintypnom
MAX3385E
3.3
5
222500.3Yes50.1152
SOIC(W)/18
SSOP/20
数据手册DataSheet
英文MAX3385E.pdfRev 1; 10/1999
技术资料
订购型号
型号状况封装温度RoHS/无铅
MAX3385ECAP生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX3385ECAP-T生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX3385ECWN停止供货SOIC(W),;18引脚;125.1mm²0°C至+70°CRoHS/无铅:否
MAX3385ECWN-T停止供货W.SO;18引脚0°C至+70°C参考数据资料
MAX3385EEAP最后一次购买SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
MAX3385EEAP-T停止供货SSOP;-40°C至+85°C参考数据资料
MAX3385E.pdf MAX3385E
MAX3385E.pdf MAX3385E
Selecting and using RS-232 Interface Parts for Your Power Supply Voltages MAX3387E