USB2517-JZX Standard Microsystems (SMSC), USB2517-JZX Datasheet - Page 42

• Manufacturer Part Number: USB2517-JZX
• Description: USB HUB
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2517-JZX

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Compliant

Revision 1.1 (04-26-10)
8.2.1.13
8.2.1.14
8.2.1.15
8.2.1.16
NUMBER
NUMBER
NUMBER
NUMBER
BIT
BIT
BIT
BIT
7:0
7:0
7:0
7:0
Register 0Ch: Max Power For Self-Powered Operation
Register 0Dh: Max Power For Bus-Powered Operation
Register 0Eh: Hub Controller Max Current For Self-Powered Operation
Register 0Fh: Hub Controller Max Current For Bus-Powered Operation
HC_MAX_C_SP
HC_MAX_C_BP
MAX_PWR_SP
MAX_PWR_BP
BIT NAME
BIT NAME
BIT NAME
BIT NAME
Max Power Self_Powered: Value in 2 mA increments that the hub consumes
Max Power Bus_Powered: Value in 2 mA increments that the hub consumes
Hub Controller Max Current Self-Powered: Value in 2 mA increments that the
Hub Controller Max Current Bus-Powered: Value in 2 mA increments that the
from an upstream port (VBUS) when operating as a self-powered hub. This
value includes the hub silicon along with the combined power consumption
(from VBUS) of all associated circuitry on the board. This value also includes
the power consumption of a permanently attached peripheral if the hub is
configured as a compound device, and the embedded peripheral reports 0
mA in its descriptors.
Note:
from an upstream port (VBUS) when operating as a bus-powered hub. This
value includes the hub silicon along with the combined power consumption
(from VBUS) of all associated circuitry on the board. This value also includes
the power consumption of a permanently attached peripheral if the hub is
configured as a compound device, and the embedded peripheral reports 0
mA in its descriptors.
hub consumes from an upstream port (VBUS) when operating as a self-
powered hub. This value includes the hub silicon along with the combined
power consumption (from VBUS) of all associated circuitry on the board.
This value does NOT include the power consumption of a permanently
attached peripheral if the hub is configured as a compound device.
Note:
A value of 50 (decimal) indicates 100 mA, which is the default value.
hub consumes from an upstream port (VBUS) when operating as a bus-
powered hub. This value will include the hub silicon along with the combined
power consumption (from VBUS) of all associated circuitry on the board.
This value will NOT include the power consumption of a permanently
attached peripheral if the hub is configured as a compound device.
A value of 50 (decimal) would indicate 100 mA, which is the default value.
The USB 2.0 specification does not permit this value to exceed 100
mA
The USB 2.0 specification does not permit this value to exceed 100
mA
DATASHEET
42
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
USB 2.0 Hi-Speed Hub Controller
SMSC USB251x
Datasheet