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RS-232 devices with system-level IEC 61000-4-2 ESD protection

Posted: 20 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? rs-232? esd? electrostatic discharge?

Texas Instruments Inc. (TI) introduced new RS-232 devices with system-level IEC 61000-4-2 ESD (Electrostatic Discharge) protection. Integrating IEC 61000-4-2 protection unto these devices makes the RS-232 interface immune to damage caused by ESD strikes while the system is up and running. Another significant advantage these devices provide, said the company, is the elimination of external IEC ESD protection devices, saving the board manufacturer cost in assembly and board space. TI's initial device offerings with IEC ESD protection include the MAX3243E, MAX3232E and MAX3227.

The MAX3243E and MAX3232E, which are compliant up to level 4 (8kV Contact Discharge and 15kV Air Gap Discharge), and MAX3227, which performs better than the level 3 specification (6kV Contact and 8kV Air Gap) devices, meet the requirements for low-power, high-speed applications, such as portable/consumer equipment, telecom and computing applications. By providing ultra low-power consumption during power-down mode (ICC 1?A typ), high data-rate speeds (up to 1Mbps), and 5.5V-tolerant inputs, the devices are suitable for most RS-232 communication needs.

The MAX3243E is currently available in the industry-standard 28-pin TSSOP, SSOP and SOIC packages, as well as the space-saving QFN package. All package offerings are RoHS-compliant. Pricing for the MAX3243E is set at $1.28 for commercial temp grade and $1.57 for industrial temp grade in quantities of 1,000. Samples of these new products are already available.




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