USB2514I SMSC Corporation, USB2514I Datasheet - Page 8

• Manufacturer Part Number: USB2514I
• Description: Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
• Manufacturer: SMSC Corporation

Chapter 2 Block Diagram
Revision 1.98 (11-19-07)
Downstream
USB Data
PHY#1
Detect/V
Bus-Power
To Upstream
Pulse
V
BUS
Switch/LED
Port #1
OC Sense
Drivers
Switch
Sense
Driver
Drivers
BUS
LED
OC
Routing & Port Re-Ordering Logic
Upstream
Upstream USB
Repeater
USB Data
Downstream
PHY#2
PHY
Data
Figure 2.1 USB2514i Block Diagram
TT #1
Port #2
Switch/LED
Drivers
OC Sense
Switch
Sense
Driver
LED
Drivers
OC
DATASHEET
3.3V
Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
TT #2
24 MHz Crystal
8
1.8V Reg
USB Data
Downstream
PHY#3
PLL
SIE
TT #3
Port #3
Switch/LED
OC Sense
Drivers
Switch
Sense
Driver
LED
Drivers
OC
1.8V
TT #4
Downstream
USB Data
To EEPROM or
SMBus Master
PHY#4
Controller
Controller
Interface
Serial
Port
SD
Switch/LED
Port #4
OC Sense
Drivers
Switch
Sense
Driver
Drivers
LED
OC
SCK
SMSC USB2514i
Datasheet