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Specification
NET2272 USB Peripheral Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
Patent Pending
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 1.2, October 15, 2003
15
2
Pin Description
Abbreviation
Description
I
Input
O
Output
I/O
Bi-directional
S
Schmitt Trigger
TS
Tri-State
TP
Totem-Pole
OD
Open-Drain
PD
50K Pull-Down
PU
50K pull-up
#
Active low
NOTE: Input pins that do not have an internal pull-up or pull-down resistor (designated by PU or PD in the ‘Type’
column below) must be driven externally when the NET2272 is in the suspended state.
2.1
Digital Power & Ground (10 pins)
Signal Name
Pin
Type
Description
VDDC
1, 48
Power
Digital Core Supply Voltage. Connect to 2.5V.
VSSC
24, 56
GND
Digital Core Ground. Connect to GND.
VDDIO
27, 42, 55
Power
I/O Interface Supply Voltage. Connect to 3.3V.
VSSIO
33, 41, 54
GND
I/O Interface Ground. Connect to GND.
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