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USB5807C Datasheet(PDF) 28 Page - Microchip Technology

Part # USB5807C
Description  7-Port USB 3.2 Gen 1 SmartHubTM IC
PDF  56 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB5807C Datasheet(HTML) 28 Page - Microchip Technology

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USB5807C
DS00003182B-page 28
2019 - 2021 Microchip Technology Inc.
8.0
FUNCTIONAL DESCRIPTIONS
This section details various USB5807C functions, including:
• Port SplitUSB Type-C Receptacle Support
• Battery Charging
• FlexConnect
• Resets
• Link Power Management (LPM)
• Remote Wakeup Indicator
• Port Control Interface
8.1
Port Split
USB Type-C Receptacle Support
The USB5807C has built-in support for the USB Type-C receptacle.
8.1.1
EXTERNAL USB 3.2 GEN 1 MULTIPLEXER
C_ATTACH[0:3] pins are used to signal to the hub when a valid USB Type-C connection has been detected. This func-
tionality requires an external USB Type-C controller such as a Microchip UTC2000 to monitor the USB Type-C recep-
tacle for a valid attach. This signal is used to enable and disable clocking to the USB 3.2 Gen 1 PHY in order to reduce
power consumption when there is no USB Type-C attach.
The
C_ATTACH[0:3] pins are active high inputs. A high signal enables clocking to the PHY to enable a USB 3.2 Gen 1
connection. A low signal disables the PHY.
A diagram of a USB Type-C Downstream Facing Port with a USB5807C, Microchip UTC2000, and external multiplexer
is shown in Figure 8-1.
A diagram of a USB Type-C Upstream Facing Port with a USB5807C, Microchip UTC2000, and external multiplexer is
shown in Figure 8-2.
FIGURE 8-1:
DFP TYPE-C PORT WITH MICROCHIP UTC2000 AND EXTERNAL MUX
USB Type-C
External Mux
Downstream Port
VBUS
GENERIC
PORT PWR
CTLR
POWER
OCS
SSTX+
SSTX-
SSRX+
SSRX-
D+
D-
PRTCTL
USB Type-C
UTC2000
DFP Mode
ENABLE
OCS#
PLUG_OR#
PPC_EN
CC1
CC2
C_ATTACH
ALT_MUX_EN
CC_POL
MUX
SSTXA+
SSTXA-
SSRXA+
SSRXA-
SSTXB+
SSTXB-
SSRXB+
SSRXB-
SSTX+
SSTX-
SSRX+
SSRX-
A/B
3.3V
SSTXA+
SSTXA-
SSRXA+
SSRXA-
SSTXB+
SSTXB-
SSRXB+
SSRXB-
D+
D-
CC1
CC2



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