USB2512-AEZG SMSC, USB2512-AEZG Datasheet - Page 56

IC USB 2.0 2PORT HUB CTLR 36-QFN

USB2512-AEZG

Manufacturer Part Number
USB2512-AEZG
Description
IC USB 2.0 2PORT HUB CTLR 36-QFN
Manufacturer
SMSC
Type
USB HUB Controllerr
Datasheets

Specifications of USB2512-AEZG

Controller Type
USB 2.0 Controller
Interface
Serial EEPROM
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
95mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
36-QFN
Operating Supply Voltage
1.8 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Supply Current
130 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1050-6

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Revision 1.1 (04-26-10)
8.6.2
8.6.3
Strap Pin (IPD)
Internal Pull-Down (IPD)
If a pin's strap function is enabled thru hub configuration selection,
Selection) and the strap pins driver type is IPD/O (internal pull-down for the Input function), use this
type of strap option.
The following figure shows an example of Strap High and Strap Low. Use the Strap High configuration
to set the strap option value to a ‘1’. Use the Strap Low configuration to set the strap option value to 0.
LED Strap Option
If a pin’s strap function of the LED pins are enabled thru the internal default configuration, the driver
type of each strap pin is I/O (no internal pull-up or pull-down for the input function). When the strap
pin shares functionality with an LED, use this type of strap option.
The internal logic will drive the LED appropriately (active high or low) depending on the sampled strap
option.
to set the strap option value to a ‘1’. Use the Strap Low configuration to set the strap option value to ‘0’.
Strap Pin
HUB
HUB
Figure 8.5
Strap Pin
HUB
VSS
Figure 8.4 Pin Strap Option with IPD Pin Example
shows an example of Strap High and Strap Low. Use the Strap High configuration
Figure 8.3 Non-Removable Pin Strap Example
+V
+V
R
Figure 8.5 LED Pin Strap Example
R kΩ
R kΩ
Primary Function/
Primary Function/
Strap High
Strap High
Strap High
LED/
DATASHEET
56
Strap Pin (IPD)
Strap Pin
HUB
Strap Pin
HUB
HUB
VSS
(Table 8.1
USB 2.0 Hi-Speed Hub Controller
R
GND
R kΩ
Hub Configuration
Primary Function/
Primary Function/
Strap Low
SMSC USB251x
Strap Low
Strap Low
LED/
Datasheet

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