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TI Introduces RS-232 Devices With IEC ESD Protection

Texas Instruments introduced new RS-232 devices with system-level IEC 61000-4-2 ESD (Electrostatic Discharge) protection. Integrating IEC 61000-4-2 protection onto these devices makes the RS-232 interface immune to damage caused by ESD strikes while the system is up and running, such as when making a connection to the RS-232 cable once the system is powered up. Another advantage these devices provide 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.

TI's MAX3243E and MAX3232E, which are compliant up to level 4 (+/- 8 kV Contact Discharge and +/- 15 kV Air Gap Discharge), and MAX3227, which performs better than the level 3 specification (+/- 6 kV Contact and +/- 8 kV 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 1uA 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. The devices are available to sample now. Budgetary 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.

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