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USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x 7 Revision 1.0 (3-11-09)
DATASHEET
Chapter 1 USB251x Hub Family Differences Overview
Table 1.1 36-pin QFN (6x6x0.5 mm) RoHS Compliant Part Numbers
Table 1.2 48-pin QFN (7x7x0.5 mm) RoHS Compliant Part Numbers
Table 1.3 64-pin QFN (9x9x0.5 mm) RoHS Compliant Part Numbers
Note 1.1 *Battery charging enable is only available on USB251x/xBi products.
Note 1.2 **USB2512A/Ai only uses a single transaction translator.
Part
Number
Down-
stream
ports
Default
TT
True
Speed
Battery
Charging
LED Port
Indicators
Clock
(MHz)
0ºC
to
70ºC
-40ºC
to
85ºC
USB2512
USB2512A
USB2512B
2
multi**
3*
24
3
USB2512i
USB2512Bi
USB2512Ai
2
multi**
3*
24
3
USB2513
USB2513B
3
multi
3*
24
3
USB2513i
USB2513Bi
3
multi
3*
24
3
USB2514
USB2514B
4
multi
3*
24
3
USB2514i
USB2514Bi
4
multi
3*
24
3
Part
Number
Down-
stream
ports
Default
TT
True
Speed
Battery
Charging
LED Port
Indicators
Clock
(MHz)
0ºC
to
70ºC
-40ºC
to
85ºC
USB2513 3
multi
3324/48 3
USB2514 4
multi
3324/48 3
Part
Number
Down-
stream
ports
Default
TT
True
Speed
Battery
Charging
LED Port
Indicators
Clock
(MHz)
0ºC
to
70ºC
-40ºC
to
85ºC
USB2517 7
multi
3324 3
USB2517i
7
multi
3324 3