USB2517-JZX SMSC, USB2517-JZX Datasheet - Page 46
USB2517-JZX
Manufacturer Part Number
USB2517-JZX
Description
IC USB 2.0 7PORT HUB CTLR 64QFN
Manufacturer
SMSC
Datasheet
1.USB2512B-AEZG.pdf
(76 pages)
Specifications of USB2517-JZX
Controller Type
USB 2.0 Controller
Interface
Serial EEPROM
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
130mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
64-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1081
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
USB2517-JZX
Manufacturer:
Standard
Quantity:
2 937
Part Number:
USB2517-JZX
Manufacturer:
SMSC
Quantity:
20 000
Revision 1.1 (04-26-10)
8.2.1.29
NUMBER
NUMBER
BIT
BIT
1:0
7:6
5:4
3:2
1:0
Note: “Boost” could result in non-USB Compliant parameters, OEM should use a ‘00’ value unless
Register F8h: Boost_4:0
Note: “Boost” could result in non-USB Compliant parameters, OEM should use a ‘00’ value unless
BOOST_IOUT_5
BOOST_IOUT_4
BOOST_IOUT_3
BOOST_IOUT_2
BOOST_IOUT_1
BIT NAME
BIT NAME
specific implementation issues require additional signal boosting to correct for degraded USB
signalling levels.
specific implementation issues require additional signal boosting to correct for degraded USB
signalling levels.
USB electrical signaling drive strength Boost Bit for Downstream Port ‘5’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘4’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘3’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘2’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘1’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
DATASHEET
46
DESCRIPTION
DESCRIPTION
USB 2.0 Hi-Speed Hub Controller
SMSC USB251x
Datasheet