TUSB2046B-Q1 Datasheet, PDF (3/22 Pages) Texas Instruments – 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE

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HUB Repeater
Port 4
Logic
Port 3
Logic
Port 2
Logic
FUNCTIONAL BLOCK DIAGRAM
DP0 DM0
1
2
USB
Transceiver
Suspend/Resume
Logic and
SIE
Frame Timer
TUSB2046BI-Q1
SLLSE50 – SEPTEMBER 2010
OSC/PLL
32
SUSPND
27 _{TSTPLL/48MCLK}
30 _XTAL1
29
XTAL2
4
RESET
26
EXTMEM
SIE Interface
Logic
Serial
EEPROM
Interface
6
EEDATA/GANGED
5
EECLK
Port 1
Logic
Hub/Device
Command
Decoder
8
BUSPWR
USB
Transceiver
USB
Transceiver
USB
Transceiver
USB
Transceiver
24
23 20
19
16
15
12
11
DP4 DM4 DP3 DM3 DP2 DM2 DP1 DM1
Hub
Power
Logic
10, 14, 18, 22
OVRCUR1 – OVRCUR4
9, 13, 17, 21
PWRON1 – PWRON4
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s) :TUSB2046BI-Q1
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