NUF2221W1T2 ON Semiconductor, NUF2221W1T2 Datasheet - Page 4

• Manufacturer Part Number: NUF2221W1T2
• Description: IC FILTER USB ESD PROTECT SOT363
• Manufacturer: ON Semiconductor

Specifications of NUF2221W1T2

• Resistance (ohms): 22
• Capacitance: 42pF
• Power (watts): 0.2W, 1/5W
• Package / Case: SC-70-6, SC-88, SOT-363
• Resistance In Ohms: 22.0
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Tolerance: -
• Other names: NUF2221W1T2OS; NUF2221W1T2OS; NUF2221W1T2OSTR

in a small and single package (SC−88, Case 419B). The
NUF2221W1 device is shown in the Figure 5.
Connection for Full− Speed and Low−Speed Devices
The USB 1.1 specification calls for two data rates:
•
•
The NUF2221W1 device can be shaped for either full−speed
or low−speed by connecting one of the data lines (D+, D−)
to a 3.3 V voltage supply through the 1.5 kW pull up resistor.
The device’s connection diagrams for each speed are
described as follows:
Full−Speed Connection
The terminal 5 is connected to a 3.3 V voltage supply while
the terminal 2 is connected to ground. The input of the D+
line is connected in the terminal 1 which outputs from the
The Pull up resistor (R
Full−speed devices − operates in 12 Mb/s
Low−speed devices that work in 1.5 Mb/s.
R
S
D
D
1(C)
6
1
Figure 5. Device Description
1(i)
R
C
UP
1
UP
V
GND
) is connected to the D+ Line.
BUS
5
2
C
1
D
D
2(C)
4
3
2(i)
R
S
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terminal 6. Finally, the input of the D− line is connected in
the terminal 3 which outputs from the terminal 4. Figure 6
shows the connections of the NUF2221W1 device for
“Full−Speed”.
Low−Speed Connection
The terminal 5 is connected to a 3.3 V voltage supply while
the terminal 2 is connected to ground. The input of the D−
line is connected in the terminal 1 which outputs from the
terminal 6. Finally, the input of the D+ line is connected in
the terminal 3 which outputs from the terminal 4. The
Figure 7 shows the connections of the NUF2221W1 device
for “Low−Speed”.
The Pull up resistor (R
D+
D−
D+
D−
Figure 7. Low Speed Connection
Figure 6. Full Speed Connection
0
0
1
2
3
1
2
3
UP
) is connected to the D− Line.
C
R
R
C
C
R
R
C
1
S
S
1
1
1
S
S
R
R
UP
UP
6
5
4
6
5
4
3.3 V
3.3 V
D−
D+
D−
D+