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ICL3221 Series 250 kbps 15 kV RS232 5.5V Transmitter/Receiver - TSSOP-16 ICL3221 Series 250 kbps 15 kV RS232 5.5V Transmitter/Receiver - TSSOP-16 ICL3221 Series 250 kbps 15 kV RS232 5.5V Transmitter/Receiver - TSSOP-16 ICL3221 Series 250 kbps 15 kV RS232 5.5V Transmitter/Receiver - TSSOP-16