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UM3222EEUE
具有IEC ESD保护,2个驱动器和2个接收器的3V至5.5V,1μA低功耗关断电流RS232收发器
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Key Specifications
Part Number Description Status Drivers Per Package Receivers Per Package Logic Voltage (Min)(V) ICC (Max)(mA) Shutdown Control Data Rate(kbps) Main Supply Voltage (Nom)(V) ESD HBM (kV) ESD Contact (kV) ESD Air (kV) Operating Temperature Range(℃) Pin/Package EV Kit Available?
UM3222EEUE 具有IEC ESD保护,2个驱动器和2个接收器的3V至5.5V,1μA低功耗关断电流RS232收发器 Active 2 2 2.5 1.5 Yes 250 3.3 ±8 ±8 ±15 -40 ~ +85 20/TSSOP
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Product Description
 
The UM3221E/UM3222E/UM3232E series are 3.3V powered RS-232 transceivers intended for portable or hand-held applications. The UM3221E has one driver/one receiver while the UM3222E/UM3232E has two drivers/two receivers. The device features low power consumption, high data-rate capability and enhanced ESD protection. The ESD rating of all transmitter outputs and receiver inputs is ±8kV for human body mode and ±15kV for IEC61000-4-2 air discharge methods, and over ±8kV for IEC61000-4-2 contact discharge methods. The logic I/O pins are protected to ±2kV for human body mode.
Small footprint, low profile package and the use of small 0.1μF capacitors ensure board space savings as well. Data rates greater than 250kbps are guaranteed at worst case load conditions.
The UM3221E/UM3222E has a low-power shutdown mode where the devices’ driver outputs and charge pumps are disabled. During shutdown, the supply current falls to less than 1μA that reduces power consumption in battery-powered portable systems or other low power consumption systems. The UM3221E/UM3222E receivers remain active in shutdown mode, allowing monitoring of external signals.
 
Features
 
- Meets True EIA/TIA-232-F Standards from a +3.0V to +5.5V Power Supply
- Meets EIA/TIA-562 Levels of ±3.7V with Supply Voltages as Low as 2.7V
- Enhanced ESD Specifications:
  ±8kV Human Body Mode
  ±15kV IEC61000-4-2 Air Discharge Mode
  ±8kV IEC61000-4-2 Contact Discharge Mode
- 1μA Low Power Shutdown (UM3221E/UM3222E)
- 250kbps Minimum Transmission Rate
- Guaranteed 30V/μs Max Slew Rate
- Latch-Up Performance Exceeds 200mA
  
Typical Operating Circuits
 
 
 
Applications
 
- Industrial Automation Equipments
- Battery-Powered Equipments
- Hand-Held Equipments
- POS Terminals
 
Pin Configurations  
 

 
Ordering Information

Part Number
Temp. Range
Package Type
Shipping Qty
UM3222EEUE
-40°C to +85°C
TSSOP20
3000pcs/13 Inch
Tape & Reel
Application Notes
微处理器超长启动周期中的外部看门狗管理方案v2.pdf
利用3.3V供电RS485接口实现远距离数据通信.pdf
高速低电源电压逻辑电平转换电路.pdf
超低功耗LDO线性稳压器.pdf
I2C-BUS电平转换芯片在安防产品的应用.pdf
0201超小封装ESD保护器件.pdf
Analog Switch Permits Port Sharing in Portable Equipment.pdf
Balanced Modulator Demodulator Employing UM4684.pdf
Level Shifter for High Speed and Wide Voltage Range Interface.pdf
Low Resistance Analog Switches Permit Speaker Switching in Audio Devices.pdf
Low-Icct Analog Switches for Ultra-Portable Designs.pdf
Selecting the Right CMOS Analog Switch.pdf
Product Selection Guide
Interface and System Interconnect Selection Guide.pdf
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