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SP3243B bảng dữ liệu(PDF) 18 Page - Sipex Corporation |
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SP3243B bảng dữ liệu(HTML) 18 Page - Sipex Corporation |
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18 / 24 page ![]() Rev. 6/30/03 SP3223B/3243B +3.0V to +5.5V RS-232 Transceivers © Copyright 2003 Sipex Corporation 18 ESD TOLERANCE The SP3223B/3243B series incorporates ruggedized ESD cells on all driver output and receiver input pins. The ESD structure is improved over our previous family for more rugged applications and environments sensitive to electro-static discharges and associated transients. The Human Body Model has been the generally accepted ESD testing method for semiconductors. This method is also specified in MIL-STD-883, Method 3015.7 for ESD testing. The premise of this ESD test is to simulate the human body’s potential to store electrostatic energy and discharge it to an integrated circuit. The simulation is performed by using a test model as shown in Figure 30. This method will test the IC’s capability to withstand an ESD transient during normal handling such as in manufacturing areas where the ICs tend to be handled frequently. For the Human Body Model, the current limiting resistor (RS) and the source capacitor (CS) are 1.5k Ω and 100pF, respectively. RC CS RS SW1 SW2 RC Device Under Test DC Power Source CS RS SW1 SW2 Figure 30. ESD Test Circuit for Human Body Model |
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