USB7252C datasheet(14/63 Pages) MICROCHIP

14 / 63 page

DS00003852A-page 14

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2021 Microchip Technology Inc.

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Port 1 Type-C

CC2

DP1_CC2

I/O12

Used for Type-C attach and orientation

detection on Port 1. Includes configurable

Rp/Ra selection. Connect this pin directly to

the CC2 pin of the respective Type-C con-

nector.

Note 3-5

If unused: Weak pull-down

to GND. This pin may only

be left unused if Port 1 is

disabled or reconfigured to

operate in legacy Type-A

mod e

thro ug h

hu b

configuration.

Note 3-5

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Port 2 Type-C

Voltage Monitor

DP2_VBUS_MON

AIO

Used for detect Type-C VBUS vSafe5V and

vSafe0V states on Port 2. A nominal volt-

age of 2.7V (2.4V min -3.0V max) is

required to detect the presence of vSafe5V.

Externally, VBUS can be as high as 5.25 V,

which can be damaging to this pin. The

amplitude of VBUS must be reduced by a

voltage divider. The recommended voltage

divider is shown below. 1% tolerance resis-

tors are recommended.

For proper Type-C port operation, it is criti-

cal that this pin actually be connected to

VBUS of the port through the recommended

resistor divider. This pin should not be tied

permanently to a fixed voltage power rail.

Note 3-6

If unused: Weak pull-down

to GND. This pin may be

left unused if Port 2 is

disabled or reconfigured to

operate in legacy Type-A

mod e

thro ug h

hu b

configuration.

Note 3-6

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Port 2 Type-C

CC1

DP2_CC1

I/O12

Used for Type-C attach and orientation

detection on Port 2. Includes configurable

Rp/Ra selection. Connect this pin directly to

the CC1 pin of the respective Type-C con-

nector.

Note 3-7

If unused: Weak pull-down

to GND. This pin may only

be left unused if Port 2 is

disabled or reconfigured to

operate in legacy Type-A

mod e

thro ug h

hu b

configuration.

Note 3-7

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

If Unused

VBUS_P2

43K

DP2_VBUS_MON

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