USB2514I SMSC Corporation, USB2514I Datasheet - Page 16

• Manufacturer Part Number: USB2514I
• Description: Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
• Manufacturer: SMSC Corporation

Revision 1.98 (11-19-07)
3.2
VDD33/VDD33CR
PACKAGE
VDD33PLL
VDDPLL18
SYMBOL
VDDA33
VDD18
VSS
BUFFER
OD12
I/O12
O12
IPD
IPU
IS
Buffer Type Descriptions
I
36 QFN
n/a
14
36
34
10
29
23
15
5
Input.
Input with internal weak pull-down resistor.
Input with internal weak pull-up resistor.
Input with Schmitt trigger.
Output 12mA.
Open drain... 12mA sink.
Input/Output buffer with 12mA sink and 12mA source.
Table 3.3 USB2514 Power, Ground, No Connect
Table 3.4 USB2514 Buffer Type Descriptions
48 QFN
n/a
17
48
46
10
41
30
18
5
DATASHEET
VDD Core
+1.8V core power. If the internal regulator is enabled, then this pin
must have a 1.0
VSS.
VDD 3.3 PLL Regulator Reference
+3.3V power supply for the PLL. If the internal PLL 1.8V regulator
is enabled, then this pin acts as the regulator input.
VDD PLL
+1.8V Filtered analog power for internal PLL. If the internal
regulator is enabled, then this pin must have a 1.0
±20% (ESR <0.1Ω) capacitor to VSS.
VDD Analog I/O
+3.3V Filtered analog PHY power, shared between adjacent ports.
VDDIO/VDD 3.3 Core Regulator Reference
+3.3V power supply for the Digital I/O
If the internal core regulator is enabled, then VDD33CR acts as
the regulator input.
VSS
Ground
Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller
16
DESCRIPTION
μ
F (or greater) ±20% (ESR <0.1Ω) capacitor to
FUNCTION
μ
SMSC USB2514i
F (or greater)
Datasheet