USB2512I Ver la hoja de datos (PDF) - SMSC -> Microchip
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USB2512I Datasheet PDF : 37 Pages
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Industrial Temperature Rated USB 2.0 High-Speed 2-Port Hub Controller
Datasheet
Table 3.2 SMBus or EEPROM Interface Behavior (continued)
CFG_SEL1
0
1
1
CFG_SEL0
1
0
1
SMBUS OR EEPROM INTERFACE BEHAVIOR
Configured as an SMBus slave for external download of user-defined
descriptors.
SMBus slave address 58 (0101100x)
Strap Options Disabled
All Settings Controlled by Registers
Internal Default Configuration
Strap Options Enabled
Bus Power Operation
2-Wire I2C EEPROMS are supported.
Strap Options Disabled
All Settings Controlled by Registers
Table 3.3 USB2512i Power, Ground, and No Connect
PACKAGE SYMBOL 36-QFN EMB
FUNCTION
VDD18
VDD33PLL
14
VDD Core
This pin must have a 1.0μF (or greater) ±20% (ESR <0.1Ω) capacitor to
VSS.
36
VDD 3.3 PLL Regulator Reference
VDDPLL18
VDDA33
VDD33/VDD33CR
NC
+3.3V power supply for the PLL. If the internal PLL 1.8V regulator
is enabled, then this pin acts as the regulator input.
34
VDD PLL
This pin must have a 1.0μF (or greater) ±20% (ESR <0.1Ω) capacitor to
VSS.
5
VDD Analog I/O
10
29
+3.3V Filtered analog PHY power, shared between adjacent ports.
23
VDDIO/VDD 3.3 Core Regulator Reference
15
+3.3V power supply for the Digital I/O
If the internal core regulator is enabled, then VDD33CR acts as the
regulator input.
6
No Connect
7
8
Leave unconnected on the circuit board.
9
18
19
20
21
SMSC USB2512i
11
DATASHEET
Revision 1.92 (11-28-07)
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