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MSP430x11x1
MIXED SIGNAL MICROCONTROLLER
SLAS241C – SEPTEMBER 1999 – REVISED JUNE 2000
35
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
DCO
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f
(DCO03)
R
l
=0 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 0.08 0.12 0.15
MHz
f
(DCO03)
R
sel
=
0
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 0.08 0.13 0.16
MH
z
f
(DCO13)
R
l
=1 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 0.14 0.19 0.23
MHz
f
(DCO13)
R
sel
=
1
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 0.14 0.18 0.22
MH
z
f
(DCO23)
R
l
=2 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 0.22 0.30 0.36
MHz
f
(DCO23)
R
sel
=
2
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 0.22 0.28 0.34
MH
z
f
(DCO33)
R
l
=3 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 0.37 0.49 0.59
MHz
f
(DCO33)
R
sel
=
3
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 0.37 0.47 0.56
MH
z
f
(DCO43)
R
l
=4 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 0.61 0.77 0.93
MHz
f
(DCO43)
R
sel
=
4
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 0.61 0.75 0.9
MH
z
f
(DCO53)
R
l
=5 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 1 1.2 1.5
MHz
f
(DCO53)
R
sel
=
5
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 1 1.3 1.5
MH
z
f
(DCO63)
R
l
=6 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 1.6 1.9 2.2
MHz
f
(DCO63)
R
sel
=
6
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 1.69 2 2.29
MH
z
f
(DCO73)
R
l
=7 DCO=3 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 2.4 2.9 3.4
MHz
f
(DCO73)
R
sel
=
7
,
DCO
=
3
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 2.7 3.2 3.65
MH
z
f
(DCO77)
R
sel
=7 DCO=7 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2.2 V 4 4.5 4.9
MHz
f
(DCO77)
R
se
l
=
7
,
DCO
=
7
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
= 3 V 4.4 4.9 5.4
MHz
f
(DCO47)
R
l
=4 DCO=7 MOD=0 DCOR=0 T
A
=25
°
C
V
CC
= 2 2 V/3 V
F
DCO40
F
DCO40
F
DCO40
MHz
f
(DCO47)
R
sel
=
4
,
DCO
=
7
,
MOD
=
0
,
DCOR
=
0
,
T
A
=
25°C
V
CC
=
2
.
2
V/3
V
DCO40
x1.7
DCO40
x2.1
DCO40
x2.5
MH
z
S
(Rsel)
S
R
= f
Rsel+1
/f
Rsel
V
CC
= 2.2 V/3 V 1.35 1.65 2
ratio
S
(DCO)
S
DCO
= f
DCO+1
/f
DCO
V
CC
= 2.2 V/3 V 1.07 1.12 1.16
ratio
D
t
Temperature drift, R
sel
= 4, DCO = 3, MOD = 0
V
CC
= 2.2 V –0.31 –0.36 –0.40
%/
°
C
D
t
sel
(see Note 21)
V
CC
= 3 V –0.33 –0.38 –0.43
%/°C
D
V
Drift with V
CC
variation, R
sel
= 4, DCO = 3, MOD = 0
(see Note 21)
V
CC
= 2.2 V/3 V 0 5 10 %/V
NOTE 21: These parameters are not production tested.
2.2 V 3 V
V
CC
Max
Min
Max
Min
f
(DCOx7)
f
(DCOx0)
Frequency Variance
01234567
DCO Steps
1
f
DCOCLK
Figure 13. DCO Characteristics