USB2533 datasheet(19/50 Pages) MICROCHIP

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USB 2.0 Hi-Speed 3-Port Hub Controller

Datasheet

 2014 Microchip Technology Inc.

DS00001702A-page 19

be performed through the SMBus interface, or permanently via OTP. Refer to the Protouch

MPT User Manual for additional information.

Note 3.3

If using the local power detect function (LOCAL_PWR pin), the NON_REM[1:0]

configuration straps cannot be used to configure the non-removable state of the USB ports.

In this case, the non-removable state of the ports must be configured in internal device

registers via the Protouch tool or SMBus.

Note 3.4

Configuration strap values are latched on Power-On Reset (POR) and the rising edge of

RESET_N (external chip reset). Configuration straps are identified by an underlined

symbol name. Signals that function as configuration straps must be augmented with an

external resistor when connected to a load. Refer to Section 6.3, "Device Configuration

Straps," on page 28 for additional information.

3.2

Pin Assignments

Table 3.2 36-SQFN Package Pin Assignments

NUM

PIN NAME

NUM

PIN NAME

SWAP_USBDN1_DM/PRT_DIS_M1

UART_RX/OCS3_N

SWAP_USBDN1_DP/PRT_DIS_P1

USBDN2_DM/PRT_DIS_M2

UART_TX/

USBDN2_DP/PRT_DIS_P2

SDA/SMBDATA/NON_REM1

VDD33

USBDN3_DM/PRT_DIS_M3

SCL/SMBCLK/CFG_SEL0

USBDN3_DP/PRT_DIS_P3

HS_IND/CFG_SEL1

RESET_N

VBUS_DET

VDDA33

SUSP_IND/LOCAL_PWR/NON_REM0

LED0

VDDA33

PRTPWR1/PRTCTL1/BC_EN1

FLEX_USBUP_DM

OCS1_N

FLEX_USBUP_DP

VDDCR12

XTAL2

VDD33

XTAL1/REFCLK

PRTPWR2/PRTCTL2/BC_EN2

OCS2_N

RBIAS

PRTPWR3/PRTCTL3/BC_EN3

VDDA33

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