Datasheet

MSP430C11x1, MSP430F11x1A
MIXED SIGNAL MICROCONTROLLER
SLAS241I − SEPTEMBER 1999 − REVISED DECEMBER 2008
23
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 V
CC
MIN TYP MAX UNIT
f
R 0 DCO 3 MOD 0 DCOR 0 T 25°C
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
3 V 0.08 0.13 0.16
MHz
f
R 1 DCO 3 MOD 0 DCOR 0 T 25°C
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
3 V 0.14 0.18 0.22
MHz
f
(CO )
R =2 DCO=3 MOD=0 DCOR=0 T =25
°
C
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
3 V 0.22 0.28 0.34
MHz
f
R =3 DCO=3 MOD=0 DCOR=0 T =25°C
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
3 V 0.37 0.47 0.56
MHz
f
R =4 DCO=3 MOD=0 DCOR=0 T =25°C
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
3 V 0.61 0.75 0.9
MHz
f
R =5 DCO=3 MOD=0 DCOR=0 T =25°C
2.2 V 1 1.2 1.5
MHz
f
(DCO53)
R
sel
= 5, DCO = 3, MOD = 0, DCOR = 0, T
A
= 25°C
3 V 1 1.3 1.5
MHz
f
R =6 DCO=3 MOD=0 DCOR=0 T =25°C
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
3 V 1.69 2 2.29
MHz
f
R =7 DCO=3 MOD=0 DCOR=0 T =25°C
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
3 V 2.7 3.2 3.65
MHz
f
R =7 DCO=7 MOD=0 DCOR=0 T =25°C
2.2 V 4 4.5 4.9
MHz
f
(DCO77)
R
sel
= 7, DCO = 7, MOD = 0, DCOR = 0, T
A
= 25°C
3 V 4.4 4.9 5.4
MHz
f
R =4 DCO=7 MOD=0 DCOR=0 T =25°C
2 2 V/3 V
f
D
CO
4
0
f
D
CO
4
0
f
D
CO
4
0
MHz
f
(DCO47)
R
sel
= 4, DCO = 7, MOD = 0, DCOR = 0, T
A
= 25°C 2.2 V/3 V
f
DCO40
x1.7
f
DCO40
x2.1
f
DCO40
x2.5
MHz
S
(Rsel)
S
R
= f
Rsel+1
/f
Rsel
2.2 V/3 V 1.35 1.65 2
ratio
S
(DCO)
S
DCO
= f
DCO+1
/f
DCO
2.2 V/3 V 1.07 1.12 1.16
ratio
D
Temperature drift R = 4 DCO = 3 MOD = 0 (see Note 1)
2.2 V −0.31 −0.36 −0.40
%/°C
D
t
Temperature drift, R
sel
= 4, DCO = 3, MOD = 0 (see Note 1)
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 1) 2.2 V/3 V 0 5 10 %/V
NOTE 1: These parameters are not production tested.
2.2 V 3 V
V
CC
Max
Min
Max
Min
f
(DCOx7)
f
(DCOx0)
Frequency Variance
012 34567
DCO Steps
1
f
DCOCLK
Figure 12. DCO Characteristics