USB2533 Datasheet, PDF (19/50 Pages) SMSC Corporation – USB 2.0 Hi-Speed 3-Port Hub Controller

USB 2.0 Hi-Speed 3-Port Hub Controller
Datasheet
3.2
PIN
NUM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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.
Pin Assignments
Table 3.2 36-SQFN Package Pin Assignments
PIN NAME
SWAP_USBDN1_DM/PRT_DIS_M1
SWAP_USBDN1_DP/PRT_DIS_P1
USBDN2_DM/PRT_DIS_M2
USBDN2_DP/PRT_DIS_P2
NC
USBDN3_DM/PRT_DIS_M3
USBDN3_DP/PRT_DIS_P3
NC
NC
VDDA33
LED0
PRTPWR1/PRTCTL1/BC_EN1
OCS1_N
VDDCR12
VDD33
PRTPWR2/PRTCTL2/BC_EN2
OCS2_N
PRTPWR3/PRTCTL3/BC_EN3
PIN
NUM
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
PIN NAME
UART_RX/OCS3_N
NC
UART_TX/
SDA/SMBDATA/NON_REM1
VDD33
SCL/SMBCLK/CFG_SEL0
HS_IND/CFG_SEL1
RESET_N
VBUS_DET
SUSP_IND/LOCAL_PWR/NON_REM0
VDDA33
FLEX_USBUP_DM
FLEX_USBUP_DP
XTAL2
XTAL1/REFCLK
NC
RBIAS
VDDA33
 2014 Microchip Technology Inc.
DS00001702A-page 19