USB2513I-AEZG SMSC, USB2513I-AEZG Datasheet - Page 30
![IC USB 2.0 3PORT HUB CTLR 36-QFN](/photos/6/81/68184/usb2513i-aezg_sml.jpg)
USB2513I-AEZG
Manufacturer Part Number
USB2513I-AEZG
Description
IC USB 2.0 3PORT HUB CTLR 36-QFN
Manufacturer
SMSC
Datasheet
1.USB2512B-AEZG.pdf
(76 pages)
Specifications of USB2513I-AEZG
Controller Type
USB 2.0 Controller
Interface
Serial EEPROM
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
36-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Other names
638-1053-6
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USB 2.0 Hi-Speed Hub Controller
Datasheet
Figure 6.1
shows a simple example of how this LED circuit will be implemented. The circuit should be
replicated for each of the x LED pins on the SMSC hub. In this circuit, when the LED pin is driven to
a logic low state, the Green LED will light up. When the LED pin is driven to a Logic High state the
Red LED will light up. When a 1 KHz square wave is driven out on the LED pin, the Green and Red
LED's will both alternately light up giving the effect of the color Orange. When nothing is driven out on
the LED pin (i.e. the pin floats to a "tri-state" condition), neither the Green nor Red LED will light up,
this is the "Off" state.
The assignment is as follows:
LED_A_N[x:1] = LED D[x:1] (Downstream Port [x:1])
The usage is as follows:
LED_A_N[x] Driven to Logic Low = LS device attached (Green LED)
LED_A_N[x] Driven to Logic High = FS device attached (Red LED)
LED_A_N[x] Pulsed @ 1 KHz = HS device attached (Orange color by pulsing Red & Green).
LED_A_N[x] is tri-state= No devices are attached, or the hub is in suspend, LED's are off.
Revision 1.1 (04-26-10)
30
SMSC USB251x
DATASHEET
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