USB2504-ABZJ SMSC Corporation, USB2504-ABZJ Datasheet - Page 4

• Manufacturer Part Number: USB2504-ABZJ
• Description: INTEGRATED USB2.0 COMPATIBLE 4 - PORT HUB
• Manufacturer: SMSC Corporation

Block Diagram
Revision 1.8 (11-11-05)
Downstream
Downstream
USB Data
Upstream
Upstream
USB Data
Repeater
PHY #1
PHY
Upstream
Sense
Power
Detect
Figure 1 4-Port Block Diagram
V
V
OC
Switch Driver
LED Drivers
BUS
BUS
PRODUCT PREVIEW
OC Sense
Routing Logic
Port #1
Switch/LED
Drivers
24 MHz
Crystal
PLL
TT
#1
...
TT
#2
4
3.3V
Reg.
1.8V
SIE
Downstream
Downstream
USB Data
TT
#3
PHY #4
1.8V
Cap
TT
#4
Strapping
Options
Defaults
Internal
Select
Pin
Sense
Switch Driver
OC
LED Drivers
Controller
Controller
OC Sense
Port #4
Port
Switch/LED
EEPROM
or SMBus
Interface
Integrated USB2.0 Compatible 4-Port Hub
Drivers
Master
Serial
SD
To
SCL
SMSC USB2504/USB2504A