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SP3243EUCR Datasheet(PDF) 6 Page - Sipex Corporation |
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SP3243EUCR Datasheet(HTML) 6 Page - Sipex Corporation |
6 / 25 page Date: 06/28/04 SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers © Copyright 2004 Sipex Corporation 6 Table 1. Device Pin Description PIN NUMBER SP3243EUCR NAME FUNCTION SP3223EU SP3243EU MLPQ EN Receiver Enable. Apply logic LOW for normal operation. 1 - - Apply logic HIGH to disable the receiver outputs (high-Z state). C1+ Positive terminal of the voltage doubler charge-pump capacitor. 2 28 28 V+ Regulated +5.5V output generated by the charge pump. 3 27 26 C1- Negative terminal of the voltage doubler charge-pump capacitor. 4 24 22 C2+ Positive terminal of the inverting charge-pump capacitor. 5 1 29 C2- Negative terminal of the inverting charge-pump capacitor. 6 2 31 V- Regulated -5.5V output generated by the charge pump. 7 3 32 R 1IN RS-232 receiver input. 16 4 2 R 2IN RS-232 receiver input. 9 5 3 R 3IN RS-232 receiver input. - 6 4 R 4IN RS-232 receiver input. - 7 5 R 5IN RS-232 receiver input. - 8 6 R 1OUT TTL/CMOS receiver output. 15 19 17 R 2OUT TTL/CMOS receiver output. 10 18 16 R 2OUT Non-inverting receiver-2 output, active in shutdown. - 20 18 R 3OUT TTL/CMOS receiver output. - 17 15 R 4OUT TTL/CMOS receiver output. - 16 14 R 5OUT TTL/CMOS receiver output. - 15 13 STATUS TTL/CMOS Output indicating online and shutdown status. 11 21 19 T 1IN TTL/CMOS driver input. 13 14 12 T 2IN TTL/CMOS driver input. 12 13 11 T 3IN TTL/CMOS driver input. - 12 10 ONLINE Apply logic HIGH to override Auto-Online circuitry keeping 14 23 21 drivers active (SHUTDOWN must also be logic HIGH, refer to Table 2). T 1OUT RS-232 driver output. 17 9 7 T 2OUT RS-232 driver output. 8 10 8 T 3OUT RS-232 driver output. - 11 9 GND Ground. 18 25 23 V CC +3.0V to +5.5V supply voltage. 19 26 25 SHUTDOWN Apply logic LOW to shut down drivers and charge pump. 20 22 20 This overrides all AUTO ON-LINE® circuitry and ONLINE (refer to Table 2). NC No Connection - - 1,24,27,30 |
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