USB84604 datasheet(17/61 Pages) MICROCHIP

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 2014-2016 Microchip Technology Inc.

DS60001295C-page 17

USB84604

Note 1: When the device is configured to enable the HSIC upstream port, the USB Product ID (PID) will be 0x4604.

When the device is configured to enable the USB upstream port, the USB PID will be 0x4504.

Battery Power

Supply Input

VBAT

Battery power supply input. When VBAT is con-

nected directly to a +3.3 V supply from the sys-

tem, the internal +3.3 V regulator runs in dropout

and regulator power consumption is eliminated. A

4.7 µF (<1 Ω ESR) capacitor to ground is required

for regulator stability. The capacitor should be

placed as close as possible to the device. Refer to

Chapter 4.0 Power Connections on page 21 for

power connection information.

3+3.3 V

Analog Power

Supply

VDDA33

+3.3 V analog power supply. A 1.0 µF (<1 Ω ESR)

capacitor to ground is required for regulator stabil-

ity. The capacitor should be placed as close as

possible to the device. Refer to Chapter 4.0

Power Connections on page 21 for power connec-

tion information.

2+3.3 V Power

Supply

VDD33

+3.3 V power supply. These pins must be con-

nected to VDDA33. Refer to Chapter 4.0 Power

Connections on page 21 for power connection

information.

+1.8 - 3.3 V

Core Power

Supply Input

VDDCOREREG

+1.8 - 3.3 V core power supply input to internal

+1.2 V regulator. This pin may be connected to

VDD33 for single supply applications when VBAT

equals +3.3 V. Running in a dual supply configu-

ration with VDDCOREREG at a lower voltage,

such as +1.8 V, may reduce overall system power

consumption. In dual supply configurations, a 4.7

µF (<1 Ω ESR) capacitor to ground is required for

regulator stability. The capacitor should be placed

as close as possible to the device. Refer to

Chapter 4.0 Power Connections on page 21 for

power connection information.

+1.2 V Core

Power Supply

VDDCR12

+1.2 V core power supply. In single supply appli-

cations or dual supply applications where 1.2 V is

not used, a 1.0 µF (<1 Ω ESR) capacitor to

ground is required for regulator stability. The

capacitor should be placed as close as possible to

the device. Refer to Chapter 4.0 Power Connec-

tions on page 21 for power connection informa-

tion.

+1.2 V HSIC

Power

Supply Input

VDD12

+1.2 V HSIC power supply input. Refer to

Chapter 4.0 Power Connections on page 21 for

power connection information.

Exposed

Pad on

package bot-

tom

(Figure 2-1)

Ground

VSS

Common ground. This exposed pad must be con-

nected to the ground plane with a via array.

TABLE 3-1:

PIN DESCRIPTIONS (CONTINUED)

Num Pins

Name

Symbol

Buffer

Type

Description

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