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TUSB8040PFPR Datasheet(PDF) 10 Page - Texas Instruments

Part # TUSB8040PFPR
Description  USB 3.0 Four Port Hub
PDF  32 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TUSB8040PFPR Datasheet(HTML) 10 Page - Texas Instruments

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Not Recommended for New Designs
TUSB8040
SLLSE42I – SEPTEMBER 2010 – REVISED SEPTEMBER 2013
www.ti.com
2.3
USB Downstream Signals
Table 2-3. USB Downstream Signals
SIGNAL NAME
TYPE
PIN NO.
DESCRIPTION
USB_SSTXP_DN0
O
8
USB SuperSpeed transmitter differential pair (positive)
USB_SSTXM_DN0
O
9
USB SuperSpeed transmitter differential pair (negative)
USB_SSRXP_DN0
I
6
USB SuperSpeed receiver differential pair (positive)
USB_SSRXM_DN0
I
7
USB SuperSpeed receiver differential pair (negative)
USB_DP_DN0
I/O
2
USB high-speed differential transceiver (positive)
USB_DM_DN0
I/O
3
USB high-speed differential transceiver (negative)
USB port power on control for downstream power/battery charging enable.
The terminal is used for control of the downstream power switch; in addition, the value of
the terminal is sampled at the de-assertion of reset to determine the value of the battery
charger support for the port as indicated in the Battery Charger Support register:
0 = Battery charging not supported
PWRON0z_BATEN0
I/O, PD
39
1 = Battery charging supported
The TUSB8040PFP only supports ganged mode. This terminal provides the port power
control for all downstream ports. This terminal also determines the battery charging
support of all downstream ports.
USB downstream port over-current detection.
The TUSB8040PFP only supports ganged mode. This terminal receives the over-current
indication for all downstream ports.
0 = An overcurrent event has occurred
OVERCUR0z
I, PU
40
1 = An overcurrent event has not occurred
This terminal should be pulled high using a 10-k
Ω resistor if power management is not
implemented. If power management is enabled, the external circuitry needed should be
determined by the power management device.
USB_SSTXP_DN1
O
55
USB SuperSpeed transmitter differential pair (positive)
USB_SSTXM_DN1
O
56
USB SuperSpeed transmitter differential pair (negative)
USB_SSRXP_DN1
I
53
USB SuperSpeed receiver differential pair (positive)
USB_SSRXM_DN1
I
54
USB SuperSpeed receiver differential pair (negative)
USB_DP_DN1
I/O
60
USB High-speed differential transceiver (positive)
USB_DM_DN1
I/O
59
USB High-speed differential transceiver (negative)
USB_SSTXP_DN2
O
14
USB SuperSpeed transmitter differential pair (positive)
USB_SSTXM_DN2
O
15
USB SuperSpeed transmitter differential pair (negative)
USB_SSRXP_DN2
I
12
USB SuperSpeed receiver differential pair (positive)
USB_SSRXM_DN2
I
13
USB SuperSpeed receiver differential pair (negative)
USB_DP_DN2
I/O
17
USB High-speed differential transceiver (positive)
USB_DM_DN2
I/O
18
USB High-speed differential transceiver (negative)
USB_SSTXP_DN3
O
49
USB SuperSpeed transmitter differential pair (positive)
USB_SSTXM_DN3
O
50
USB SuperSpeed transmitter differential pair (negative)
USB_SSRXP_DN3
I
47
USB SuperSpeed receiver differential pair (positive)
USB_SSRXM_DN3
I
48
USB SuperSpeed receiver differential pair (negative)
USB_DP_DN3
I/O
45
USB High-speed differential transceiver (positive)
USB_DM_DN3
I/O
44
USB High-speed differential transceiver (negative)
10
PIN DESCRIPTIONS
Copyright © 2010–2013, Texas Instruments Incorporated
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Product Folder Links: TUSB8040



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