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SP3238EEA-L Datasheet(PDF) 5 Page - Exar Corporation |
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SP3238EEA-L Datasheet(HTML) 5 Page - Exar Corporation |
5 / 21 page Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com SP3238E_100_020111 5 Table 1. Device Pin Description NAME FUNCTION PIN NUMBER C2+ Positive terminal of the symmetrical charge-pump capacitor C2. 1 GND Ground. 2 C2- Negative terminal of the symmetrical charge-pump capacitor C2. 3 V- Regulated -5.5V output generated by the charge pump. 4 T 1OUT RS-232 Driver Output. 5 T 2OUT RS-232 Driver Output. 6 T 3OUT RS-232 Driver Output. 7 R 1IN RS-232 receiver input. 8 R 2IN RS-232 receiver input. 9 T 4OUT RS-232 Driver Output. 10 R 3IN RS-232 receiver input. 11 T 5OUT RS-232 Driver Output. 12 ONLINE Apply logic HIGH to override AUTO ON-LINE® circuitry keeping drivers active (SHUTDOWN must also be logic HIGH, refer to Table 2). 13 SHUTDOWN Apply logic LOW to shut down drivers and charge pump. This overrides all AUTO ON-LINE® circuitry and ONLINE (Refer to table 2). 14 STATUS TTL/CMOS Output indicating if a RS-232 signal is present on any receiver input. 15 R 1OUT Non-Inverting receiver - 1 output, active in shutdown. 16 T 5IN TTL/CMOS driver input. 17 R 3OUT TTL/CMOS receiver output. 18 T 4IN TTL/CMOS driver input. 19 R 2OUT TTL/CMOS receiver output. 20 R 1OUT TTL/CMOS receiver output. 21 T 3IN TTL/CMOS driver input. 22 T 2IN TTL/CMOS driver input. 23 T 1IN TTL/CMOS driver input. 24 C1- Negative terminal of the symmetrical charge-pump capacitor C1. 25 Vcc +3.0V to +5.5V supply voltage. 26 V+ Regulated +5.5V output generated by the charge pump. 27 C1+ Positive terminal of the symmetrical charge-pump capacitor C1. 28 |
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