Datasheet

0.01
0.10
1.00
10.00
10.00 100.00 1000.00 10000.00
R
OSC
− External Resistor − kW
DCO Frequency − MHz
RSELx = 4
0.01
0.10
1.00
10.00
10.00 100.00 1000.00 10000.00
R
OSC
− External Resistor − kW
DCO Frequency − MHz
RSELx = 4
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
−50 −25 0 25 50 75 100
T
A
− Temperature − °C
DCO Frequency − MHz
R
OSC
= 100k
R
OSC
= 270k
R
OSC
= 1M
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.0 2.5 3.0 3.5 4.0
V
CC
− Supply Voltage − V
DCO Frequency − MHz
R
OSC
= 100k
R
OSC
= 270k
R
OSC
= 1M
MSP430F21x2
SLAS578J –NOVEMBER 2007– REVISED JANUARY 2012 www.ti.com
Typical Characteristics - DCO With External Resistor R
OSC
DCO FREQUENCY DCO FREQUENCY
vs vs
R
OSC
R
OSC
V
CC
= 2.2 V, T
A
= 25°C V
CC
= 3 V, T
A
= 25°C
Figure 14. Figure 15.
DCO FREQUENCY DCO FREQUENCY
vs vs
TEMPERATURE SUPPLY VOLTAGE
V
CC
= 3 V T
A
= 25°C
Figure 16. Figure 17.
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