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ISP1122ANB Datasheet(PDF) 4 Page - NXP Semiconductors |
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ISP1122ANB Datasheet(HTML) 4 Page - NXP Semiconductors |
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4 / 48 page  Philips Semiconductors ISP1122A USB stand-alone hub Preliminary specification Rev. 01 — 27 March 2000 4 of 48 9397 750 06986 © Philips Electronics N.V. 2000. All rights reserved. OC3 9 AI/I overcurrent sense input for downstream port 3 (analog [5]) OC4 10 AI/I overcurrent sense input for downstream port 4 (analog [5]) OC5/GOC [3] 11 AI/I modes 5, 7: overcurrent sense input for downstream port 5 (analog [5]) modes 0, 1, 3: global overcurrent sense input (analog [5]) DM4 12 AI/O downstream port 4 D − connection (analog) [4] DP4 13 AI/O downstream port 4 D + connection (analog) [4] SP/BP 14 I selects power mode: self-powered: connect to VDD (local power supply); also use this mode for hybrid-powered operation bus-powered: connect to GND; disable downstream port 5 to meet supply current requirements [4] HUBGL 15 O hub GoodLink LED indicator output (open-drain, 6 mA); to connect an LED use a 330 Ω series resistor; if unused connect to VCC via a 10 kΩ resistor PSW3/GL3 [3] 16 O modes 4 to 6: power switch control output for downstream port 3 (open-drain, 6 mA) modes 0 to 3, 7: GoodLink LED indicator output for downstream port 3 (open-drain, 6 mA); to connect an LED use a 330 Ω series resistor PSW4/GL4 [3] 17 O modes 4 to 6: power switch control output for downstream port 4 (open-drain, 6 mA) modes 0 to 3, 7: GoodLink LED indicator output for downstream port 4 (open-drain, 6 mA); to connect an LED use a 330 Ω series resistor PSW5/GL5/ GPSW [3] 18 O mode 5: power switch control output for downstream port 5 (open-drain, 6 mA) modes 3, 7: GoodLink LED indicator output for downstream port 5 (open-drain, 6 mA); to connect an LED use a 330 Ω series resistor modes 0 to 2: gang mode power switch control output (open-drain, 6 mA) XTAL1 19 I crystal oscillator input (6 MHz) XTAL2 20 O crystal oscillator output (6 MHz) RESET [2] 21 I reset input (Schmitt trigger); a LOW level produces an asynchronous reset; connect to VCC for power-on reset (internal POR circuit) OPTION/SCL 22 I/O mode selection input; also functions as I2C-bus clock output (open-drain, 6 mA) INDV/SDA 23 I/O selects individual (HIGH) or global (LOW) power switching and overcurrent detection; also functions as bidirectional I2C-bus data line (open-drain, 6 mA) DM5 24 AI/O downstream port 5 D − connection (analog) [4] DP5 25 AI/O downstream port 5 D + connection (analog) [4] DM1 26 AI/O downstream port 1 D − connection (analog) [6] DP1 27 AI/O downstream port 1 D + connection (analog) [6] Table 2: Pin description for SO32 and SDIP32…continued Symbol [1] Pin Type Description |
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Similar Description - ISP1122ANB |
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