USB2533 datasheet(14/61 Pages) SMSC

14 / 61 page

USB 2.0 Hi-Speed 3-Port Hub Controller

Datasheet

Revision 1.0 (06-17-13)

SMSC USB2533

DATASHEET

I2C Serial

Data

SDA

IS/OD8

I2C bidirectional serial data

SMBus Serial

Data

SMBDATA

IS/OD8

SMBus bidirectional serial data

Non-

Removable

Device 1

Configuration

Strap

NON_REM1

(Note 3.3)

This strap is used in conjunction with

NON_REM0 to configure the downstream ports

as non-removable devices. Refer to Section

6.3.1, "Non-Removable Device

(NON_REM[1:0])," on page 29 for additional

information.

See Note 3.4 for more information on

configuration straps.

MISC.

Port 1 Over-

Current

Sense Input

OCS1_N

(PU)

This active-low signal is input from an external

current monitor to indicate an over-current

condition on USB Port 1.

Port 2 Over-

Current

Sense Input

OCS2_N

(PU)

This active-low signal is input from an external

current monitor to indicate an over-current

condition on USB Port 2.

UART

Receive Input

UART_RX

Internal UART receive input

Note:

This is a 3.3V signal. For RS232

operation, an external 12V translator is

required.

Port 3 Over-

Current

Sense Input

OCS3_N

(PU)

This active-low signal is input from an external

current monitor to indicate an over-current

condition on USB Port 3.

UART

Transmit

Output

UART_TX

Internal UART transmit output

Note:

This is a 3.3V signal. For RS232

operation, an external 12V driver is

required.

System Reset

Input

RESET_N

I_RST

This active-low signal allows external hardware to

reset the device.

Note:

The active-low pulse must be at least

5us wide. Refer to Section 8.3.2,

"External Chip Reset (RESET_N)," on

page 48 for additional information.

Crystal Input

XTAL1

ICLK

External 24 MHz crystal input

Reference

Clock Input

REFCLK

ICLK

Reference clock input. The device may be

alternatively driven by a single-ended clock

oscillator. When this method is used, XTAL2

should be left unconnected.

Crystal

Output

XTAL2

OCLK

External 24 MHz crystal output

Table 3.1 Pin Descriptions (continued)

NUM PINS

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

USB2533 Datenblatt(PDF) 14 Page - SMSC Corporation

USB2533 Datenblatt(HTML) 14 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

Datenblatt Download

Link URL