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XR17V358IB176-F Datasheet(PDF) 8 Page - Exar Corporation |
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XR17V358IB176-F Datasheet(HTML) 8 Page - Exar Corporation |
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8 / 68 page  XR17V358 PRELIMINARY 8 HIGH PERFORMANCE OCTAL PCI EXPRESS UART REV. P1.0.2 NOTE: Pin type: I=Input, O=Output, IO= Input/output, OD=Output Open Drain, OT=Output Tristate, IS=Input Schmitt Trigger. EN485# C10 I Auto RS-485 mode enable (active low). This pin is sampled during power up, following a hardware reset (RST#) or soft reset (register RESET). It can be used to start up all 8 UARTs in the Auto RS-485 Half-Duplex Direction control mode. The sampled logic state is transferred to FCTR bit-5 in the UART channel. ENIR# B10 I Infrared mode enable (active low). This pin is sampled during power up, fol- lowing a hardware reset (RST#) or soft-reset (register RESET). It can be used to start up all 8 UARTs in the infrared mode. The sampled logic state is transferred to MCR bit-6 in the UART. TEST0 TEST1 TEST2 F2 B11 A11 I I I Factory Test Modes. For normal operation, connect to GND. VCC33 D5, D9, E12, J12, M7 Pwr 3.3V I/O power supply. VCC33A K3 Pwr 3.3V analog PHY power supply. A ferrite bead is recommended on this pin. VCC33P B13, C13 Pwr 3.3V power supply voltage for output stage of buck regulator. VCC33B B14, B15 Pwr 3.3V power supply for the analog blocks of the buck regulator. VCC12 D7, D11, E4, G12, K4, L12, M9 Pwr 1.2V core power supply. A ferrite bead is recommended on these pins. VCC12A K2 Pwr 1.2V analog PHY power supply. A ferrite bead is recommended on this pin. GND A4, A8, A12, B12, C12, D4, D6, D8, D10, D12, F1, F4, F12, G3, H1, H2, H12, H15, J3, J4, K1, K12, L4, M1, M6, M8, M10, M15, R4, R8, R12 Pwr Power supply common, ground. NC A1, A15, R1, R15 - No internal connection. PIN DESCRIPTIONS NAME PIN #TYPE DESCRIPTION |
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