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XR32431EUCR-F Datasheet(PDF) 5 Page - Exar Corporation |
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XR32431EUCR-F Datasheet(HTML) 5 Page - Exar Corporation |
5 / 13 page © 2014 Exar Corporation XR32430/XR32431 5 / 13 exar.com/XR32430_XR32431 Rev 1A Pin Configuration Pin Assignments XR32340 XR32341 Pin Name Type Description 1, 2, 3, 4, 5 1, 2, 3, 4, 5 R1IN, R2IN, R3IN, R4IN, R5IN Inputs (5K pull- dwn)- ±15KV ESD Protected, RS-232 Receiver Inputs 6. 7, 8 6. 7, 8 T1OUT, T2OUT, T3OUT Output ±15KV ESD Protected, RS-232 Driver Output 9,16, 25, 32 9,16, 32 NC - No Connect (not connect to the die). Can be left floating or tied to GND or VCC. 10, 11, 12 10, 11, 12 T3IN, T2IN, T1IN Input TTL/CMOS Driver Input 13,14,15, 17, 18, 19 13,14,15, 17, 18, 19 R5OUT, R4OUT, R3OUT, R2OUT, R1OUT, R2OUT Output TTL/CMOS Receiver Output 20 20 Status Output TTL/CMOS level output indicating if no valid RS-232 levels are present at the R1IN or R2IN input pins. 21 21 Shutdown Input TTL/CMOS level input, when driven low puts the part into shutdown mode (tri-stating driver outputs and disabling the charge-pump); normal operation when driven high. 22 22 Online Input TTL/CMOS level input. A low input enables Auto On-Line mode, a high input disables Auto On-Line Mode. 23, 28 23, 28 C1-, C1+ Analog Negative and positive terminals of voltage doubler charge pump capacitor. 24 24 GND Supply Ground -25 VL Supply I/O Power Supply 26 26 VCC Supply Power Supply 27 27 V+ Analog Regulated positive (+5.5V) charge pump rail. 29, 30 29, 30 C2+, C2- Analog Positive and negative terminals of the inverting charge pump capacitor. 31 31 V- Analog Regulated positive (-5.5V) charge pump rail. - - Paddle Supply Ground. The exposed paddle on the bottom of package is connected to device ground. The paddle should be connected to ground on pcb. 1 2 3 4 5 17 6 18 R1IN R2IN T1OUT T2OUT R1OUT C1- GND 25 26 27 29 30 31 32 28 R3IN R4IN R5IN T3OUT R2OUT R2OUT XR32430 32 pin QFN (5x5mm) 1 2 3 4 5 17 6 18 R1IN R2IN T1OUT T2OUT R1OUT C1- GND 25 26 27 29 30 31 32 28 R3IN R4IN R5IN T3OUT R2OUT R2OUT XR32431 32 pin QFN (5x5mm) |
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