UM213EEASR

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.

Applications

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

Key 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