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RS-422 Datasheet(PDF) 8 Page - Exar Corporation |
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RS-422 Datasheet(HTML) 8 Page - Exar Corporation |
8 / 23 page SP330E 8 RS-232/RS-485/RS-422 TRANSCEIVER WITH 1.65V-5.5V INTERFACE REV. 1.0.0 PIN DESCRIPTIONS Pin Name RS-232 RS-485 Full Duplex RS-485 Half Duplex 1 C1+ Charge pump cap 1 positive lead, 0.1µF 2 VL Logic Supply for TTL Inputs and Outputs, VL = +1.65V to +5.5V or tie to VCC 3 VCC Main Supply, VCC = +3.0V to +5.5V, bypass to ground with 1.0µF 4 C1- Charge pump cap 1 negative lead 5 GND Ground 6 T1OUT, B/Z Transmitter 1 Output Z Driver Neg Output B/Z Neg Input/Output 7 T2OUT, A/Y Transmitter 2 Output Y Driver Pos Output A/Y Pos Input/Output 8 R1OUT Receiver 1 Output X X 9 R2OUT, RO Receiver 2 Output Receiver TTL Output Receiver TTL Output 10 11 SHDN Low power shutdown mode when low 12 SLEW Data rate limited to 250kbps when low 13 RS-485/RS-232 0 1 1 14 HALF/FULL X 0 1 15 GND Ground 16 R2IN, A Receiver 2 Input A Pos Receiver Input X 17 R1IN, B Receiver 1 Input B Neg Receiver Input X 18 RE X Receiver enabled when low 19 T2IN, DE Transmitter 2 Input Driver enabled when high 20 T1IN, DI Transmitter 1 Input Driver TTL Input 21 V- Charge pump negative supply, 0.1µF from ground 22 C2- Charge pump cap 2 negative lead 23 C2+ Charge pump cap 2 positive lead, 0.1µF 24 V+ Charge pump positive supply, 0.1µF to ground |
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Similar Description - RS-422 |
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