MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
DCO
PARAMETER
TEST CONDITIONS
V
MIN
TYP
MAX
UNIT
CC
N
= 01E0h, FN_8 = FN_4 = FN_3 = FN_2 = 0, D = 2,
(DCO)
f
2.2 V/3 V
1
MHz
(DCOCLK)
(DCO2)
DCOPLUS = 0
2.2 V
3 V
0.3
0.3
2.5
2.7
0.7
0.8
5.7
6.5
1.2
1.3
9
0.65
0.7
5.6
6.1
1.3
1.5
10.8
12.1
2
1.25
1.3
10.5
11.3
2.3
2.5
18
f
f
f
f
f
f
f
f
f
f
FN_8 = FN_4 = FN_3 = FN_2 = 0, DCOPLUS = 1
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
2.2 V
3 V
FN_8 = FN_4 = FN_3 = FN_2 = 0, DCOPLUS = 1 (see Note 1)
FN_8 = FN_4 = FN_3 = 0, FN_2 = 1, DCOPLUS = 1
(DCO27)
(DCO2)
2.2 V
3 V
2.2 V
3 V
FN_8 = FN_4 = FN_3 = 0, FN_2 = 1, DCOPLUS = 1 (see Note 1)
FN_8 = FN_4 = 0, FN_3 = 1, FN_2 = x, DCOPLUS = 1
FN_8 = FN_4 = 0, FN_3 = 1, FN_2 = x, DCOPLUS = 1 (see Note 1)
FN_8 = 0, FN_4 = 1, FN_3 = FN_2 = x, DCOPLUS = 1
FN_8 = 0, FN_4 = 1, FN_3 = FN_2 = x, DCOPLUS = 1 (see Note 1)
FN_8 = 1, FN_4 = FN_3 = FN_2 = x, DCOPLUS = 1
(DCO27)
(DCO2)
20
2.2 V
3 V
3
2.2
15.5
17.9
2.8
3.4
21.5
26.6
4.2
6.3
32
3.5
25
2.2 V
3 V
(DCO27)
(DCO2)
10.3
1.8
2.1
13.5
16
28.5
4.2
5.2
33
2.2 V
3 V
2.2 V
3 V
(DCO27)
(DCO2)
41
2.2 V
3 V
2.8
4.2
21
6.2
9.2
46
2.2 V
3 V
FN_8 = 1,FN_4 = FN_3 = FN_2 = x, DCOPLUS = 1 (see Note 1)
Step size between adjacent DCO taps:
(DCO27)
30
46
70
1 < TAP 20
TAP = 27
2.2 V
3 V
1.06
1.07
–0.2
–0.2
1.11
1.17
-- 0 . 6
-- 0 . 6
S
n
S
= f
/ f , (see Figure 13 for taps 21 to 27)
DCO(Tap n+1) DCO(Tap n)
n
–0.4
–0.4
Temperature drift, N
D = 2, DCOPLUS = 0
= 01E0h, FN_8 = FN_4 = FN_3 = FN_2 = 0,
(DCO)
D
D
%_C
t
Drift with V variation, N
FN_8 = FN_4 = FN_3 = FN_2 = 0, D = 2, DCOPLUS = 0
= 01E0h,
(DCO)
CC
0
5
15
%/V
V
NOTES: 1. Do not exceed the maximum system frequency.
f
f
(DCO)
(DCO)
f
f
(DCO20 C)
(DCO3V)
1.0
1.0
0
1.8
2.4
3.0
3.6
-- 4 0
-- 2 0
0
20
40
60
85
V
-- V
T -- C
A
CC
Figure 12. DCO Frequency vs Supply Voltage VCC and vs Ambient Temperature
33
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