USB3803 datasheet(9/99 Pages) MICROCHIP

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 2014-2015 Microchip Technology Inc.

DS00001691B-page 9

USB3803

3.2

Signal Definitions

WLCSP Pin

Name

Description

USBUP_DP

Upstream D+ data pin of the USB Interface

USBUP_DM

Upstream D- data pin of the USB Interface

BYPASS_N

Control signal to select between HUB MODE and BYPASS MODE

Note:

Bypass mode is only available in the USB3803C.

I2C_ASEL0

I2C Address Select Bit 0

I2C_ASEL1

I2C Address Select Bit 1

USBDN1_DP

USB downstream Port 1 D+ data pin

USBDN1_DM

USB downstream Port 1 D- data pin

USBDN2_DP

USB downstream Port 2 D+ data pin

USBDN2_DM

USB downstream Port 2 D- data pin

USBDN3_DP

USB downstream Port 3 D+ data pin

USBDN3_DM

USB downstream Port 3 D- data pin

SCL

I2C clock input

SDA

I2C bi-directional data pin

RESET_N

Active low reset signal

HUB_CONNECT

Hub Connect

INT_N

Active low interrupt signal

REF_SEL1

Reference Clock Select 1 input

REF_SEL0

Reference Clock Select 0 input

REFCLK

Reference Clock input

RBIAS

Bias Resistor pin

VDD12_BYP

1.2 V Regulator

VDD33_BYP

3.3 V Regulator

VBAT

Voltage input from the battery supply

VDD_CORE_REG

Power supply input to 1.2V regulator for digital logic core

VSS

Ground

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