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SP3232EBCT-L Datasheet(PDF) 5 Page - Exar Corporation |
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SP3232EBCT-L Datasheet(HTML) 5 Page - Exar Corporation |
5 / 22 page Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com SP3222EB/SP3232EB_103_081414 5 Table 1. Device Pin Description NAME FUNCTION PIN NUMBER SP3222EB SP3232EB SOIC SSOP TSSOP EN Receiver Enable. Apply Logic LOW for normal operation. Apply logic HIGH to disable the receiver outputs (high-Z state) 1 1 - C1+ Positive terminal of the voltage doubler charge-pump capacitor 2 2 1 V+ +5.5V output generated by the charge pump 3 3 2 C1- Negative terminal of the voltage doubler charge-pump capacitor 4 4 3 C2+ Positive terminal of the inverting charge-pump capacitor 5 5 4 C2- Negative terminal of the inverting charge-pump capacitor 6 6 5 V- -5.5V output generated by the charge pump 7 7 6 T 1OUT RS-232 driver output. 15 17 14 T 2OUT RS-232 driver output. 8 8 7 R 1IN RS-232 receiver input 14 16 13 R 2IN RS-232 receiver input 9 9 8 R 1OUT TTL/CMOS receiver output 13 15 12 R 2OUT TTL/CMOS receiver output 10 10 9 T 1IN TTL/CMOS driver input 12 13 11 T 2IN TTL/CMOS driver input 11 12 10 GND Ground. 16 18 15 V CC +3.0V to +5.5V supply voltage 17 19 16 SHDN Shutdown Control Input. Drive HIGH for normal device operation. Drive LOW to shutdown the drivers (high-Z output) and the on- board power supply 18 20 - N.C. No Connect - 11, 14 - PIN FUNCTION |
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