UM208数据手册Union-IC中文资料规格书

描述 Description

The UM207/208/211/213 are enhanced transceivers intended for use in RS-232 and V.28 serial communication and are particularly suited for those applications where ±12V is not available. These devices feature very low power consumption and +5V single supply operation making them ideal for space-constrained applications. With integrated charge pump circuitry and small 0.1µF charge pump capacitors, these devices can fully meet RS-232 voltage levels. A slow rate limited transmitter circuit improves data integrity. The receiver features hysteresis to greatly improve noise rejection. The UM211 and UM213 feature a low power shutdown mode, which reduces power supply drain to 1µA. The UM213 includes two receivers that remain active during shutdown to monitor for signal activity.

The drivers maintain the ±5V EIA/TIA-232E output signal levels at data rates in excess of 250kbps when loaded in accordance with the EIA/TIA-232E specification Driver output and receiver input pins are protected against ESD to over ±15kV for both human body mode and IEC61000-4-2 air discharge mode.

The UM207/208 series are available in SOP24, SSOP24 and TSSOP24 packages, the UM211/213 are available in SOP28, SSOP28 and TSSOP28 packages.



 

  



Features

 - Meets All EIA/TIA-232 and ITU V2.8 Specifications

- Single +5V Supply Operation

- 4 ×0.1µF External Charge Pump Capacitors

- Typical 250kbps Transmission Rate

- 1mA Typical Static Supply Current

- 1μA Shutdown Mode (UM211/213)

- Two Wake-Up Receivers (UM213)

- Tri-State/Rx Enable (UM211/213)

- Enhanced ESD Specifications for RS-232 Pins:

±15kV Human Body Mode

±15kV IEC61000-4-2 Air Discharge Mode

±8kV IEC61000-4-2 Contact Discharge Mode- Available in SOP24, SSOP24, TSSOP24, SOP28, SSOP28, TSSOP28 Packages

 

Typical Application Circuit



 

Applications

 - Computer-Portable, Mainframe, Laptop

- Handheld Equipments

- Battery-Powered Equipments

- Instrumentation, UPS

- Printers and Terminals

特性 Features

- Meets All EIA/TIA-232 and ITU V2.8 Specifications
- Single +5V Supply Operation
- 4 ×0.1µF External Charge Pump Capacitors
- Typical 250kbps Transmission Rate
- 1mA Typical Static Supply Current
- 1μA Shutdown Mode (UM211/213)
- Two Wake-Up Receivers (UM213)
- Tri-State/Rx Enable (UM211/213)
- Enhanced ESD Specifications for RS-232 Pins:
±15kV Human Body Mode
±15kV IEC61000-4-2 Air Discharge Mode
±8kV IEC61000-4-2 Contact Discharge Mode- Available in SOP24, SSOP24, TSSOP24, SOP28, SSOP28, TSSOP28 Packages
 
Typical Application Circuit

 
Applications
 - Computer-Portable, Mainframe, Laptop
- Handheld Equipments
- Battery-Powered Equipments
- Instrumentation, UPS
- Printers and Terminals

应用 Application

- Computer-Portable, Mainframe, Laptop
- Handheld Equipments
- Battery-Powered Equipments
- Instrumentation, UPS
- Printers and Terminals