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TUSB7340 数据表(PDF) 6 Page - Texas Instruments |
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TUSB7340 数据表(HTML) 6 Page - Texas Instruments |
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6 / 117 page ![]() TUSB7320, TUSB7340 SLLSE76M – MARCH 2011 – REVISED JULY 2015 www.ti.com Clock and Reset Signals (continued) PIN I/O DESCRIPTION TUSB7320 TUSB7340 NAME NO. NO. USB SuperSpeed receiver differential pair (negative). USB_SSRXN_DN2 A10 A10 I Note: When routing, it is permissible to swap the positive and negative signals in Port 2 SSRX differential pair. USB_DP_DN2 B12 B12 I/O USB High-speed differential transceiver (positive). USB_DM_DN2 A13 A13 I/O USB High-speed differential transceiver (negative). USB DS Port 2 Power On Control for Downstream Power. The terminal is used for control of the O PWRON2# B34 B34 downstream power switch. If the PWRON_POLARITY bit is set to 1, this pin is active high and the PD internal pulldown is disabled. This pin may be at low impedance when power rails are removed. USB DS Port 2 Overcurrent Detection. I OVERCUR2# A37 A37 0: overcurrent detected; PU 1: overcurrent not detected USB SuperSpeed transmitter differential pair (positive). USB_SSTXP_DN3 — B28 O Note: When routing, it is permissible to swap the positive and negative signals in Port 3 SSTX differential pair. USB SuperSpeed transmitter differential pair (negative). USB_SSTXN_DN3 — A30 O Note: When routing, it is permissible to swap the positive and negative signals in Port 3 SSTX differential pair. USB SuperSpeed receiver differential pair (positive). USB_SSRXP_DN3 — B27 I Note: When routing, it is permissible to swap the positive and negative signals in Port 3 SSRX differential pair. USB SuperSpeed receiver differential pair (negative). USB_SSRXN_DN3 — A29 I Note: When routing, it is permissible to swap the positive and negative signals in Port 3 SSRX differential pair. USB_DP_DN3 — B25 I/O USB High-speed differential transceiver (positive). USB_DM_DN3 — A27 I/O USB High-speed differential transceiver (negative). USB DS Port 3 Power On Control for Downstream Power. The terminal is used for control of the O PWRON3# — A46 downstream power switch. If the PWRON_POLARITY bit is set to 1, this pin is active high and the PD internal pulldown is disabled. This pin may be at low impedance when power rails are removed. USB DS Port 3 Overcurrent Detection. I OVERCUR3# — B43 0: overcurrent detected; PU 1: overcurrent not detected USB SuperSpeed transmitter differential pair (positive). USB_SSTXP_DN4 — B7 O Note: When routing, it is permissible to swap the positive and negative signals in Port 4 SSTX differential pair. USB SuperSpeed transmitter differential pair (negative). USB_SSTXN_DN4 — A8 O Note: When routing, it is permissible to swap the positive and negative signals in Port 4 SSTX differential pair. USB SuperSpeed receiver differential pair (positive). USB_SSRXP_DN4 — B6 I Note: When routing, it is permissible to swap the positive and negative signals in Port 4 SSRX differential pair. USB SuperSpeed receiver differential pair (negative). USB_SSRXN_DN4 — A7 I Note: When routing, it is permissible to swap the positive and negative signals in Port 4 SSRX differential pair. USB_DP_DN4 — B5 I/O USB High-speed differential transceiver (positive). USB_DM_DN4 — A5 I/O USB High-speed differential transceiver (negative). USB DS Port 4 Power On Control for Downstream Power. The terminal is used for control of the O PWRON4# — A48 downstream power switch. If the PWRON_POLARITY bit is set to 1, this pin is active high and the PD internal pulldown is disabled. This pin may be at low impedance when power rails are removed. USB DS Port 4 Overcurrent Detection. I OVERCUR4# — B45 0: overcurrent detected; PU 1: overcurrent not detected I2C SIGNALS SCL B2 B2 I/O I2C Clock - If no I2C device is present, pull this line down to disable. SDA A2 A2 I/O I2C Data - If no I2C device is present, pull this line down to disable. TEST AND MISCELLANEOUS SIGNALS I JTAG_TCK A32 A32 JTAG test clock PD I JTAG_TDI A35 A35 JTAG test data in PU O JTAG_TDO B31 B31 JTAG test data out PD 6 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TUSB7320 TUSB7340 |
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