USB7252P datasheet(15/64 Pages) MICROCHIP

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DS00003561A-page 15

USB7252P

Downstream

Port 2 Type-C

CC2

DP2_CC2

I/O12

Used for Type-C attach and orientation

detection on Port 2. Includes configurable

Rp/Ra selection. Connect this pin directly to

the CC2 pin of the respective Type-C con-

nector.

Note 3-8

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 3-8

Upstream

Voltage Monitor

VBUS_MON_UP

I/O12

Used to detect VBUS on the upstream port.

Externally, VBUS can be as high as 5.25 V,

which can be damaging to this pin. A nomi-

nal voltage of 2.7V (2.4V min -3.0V max) is

required to detect the presence of vSafe5V.

The amplitude of VBUS must be reduced by

a voltage divider. The recommended voltage

divider is shown below. 1% tolerance resis-

tors are recommended.

Note:

For embedded host applications,

this pin should be controlled by

an I/O on the host processor to a

2.68V logic level.

Mandatory

Note 3-12

Miscellaneous

Programmable

Function Pins

PF[31:2]

I/O12

Programmable function pins.

Note 3-9

If unused: depends on the

configured pin function.

Refer to Section 3.3.4,

PF[31:2] Configuration

(CFG_STRAP[2:1])

Note 3-9

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

If Unused

VBUS_UP

43K

VBUS_MON_UP

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