Datasheet

MSP430F471x3, MSP430F471x6, MSP430F471x7
MIXED SIGNAL MICROCONTROLLER
SLAS626C -- OCTOBER 2008 -- REVISED MARCH 2011
40
POST OFFICE BOX 655303  DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
DCO
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
f
(DCOCLK)
N
(DCO)
= 01Eh, FN_8 = FN_4 = FN_3 = FN_2 = 0, D = 2,
DCOPLUS = 0
V
CC
=2.2V/3V 1 MHz
f
F
N
8
F
N
4
F
N
3
F
N
2
0
D
C
O
P
L
U
S
1
V
CC
=2.2V 0.3 0.65 1.25
M
H
z
f
(DCO = 2)
FN
_
8=FN
_
4=FN
_
3=FN
_
2 = 0, DCOPLUS = 1
V
CC
=3V 0.3 0.7 1.3
MHz
f
F
N
8
F
N
4
F
N
3
F
N
2
0
D
C
O
P
L
U
S
1
V
CC
=2.2V 2.5 5.6 10.5
M
H
z
f
(DCO = 27)
FN
_
8=FN
_
4=FN
_
3=FN
_
2 = 0, DCOPLUS = 1
V
CC
=3V 2.7 6.1 11.3
MHz
f
FN
_
8=FN
_
4=FN
_
3=0,FN
_
2 = 1, DCOPLUS = 1
V
CC
=2.2V 0.7 1.3 2.3
M
H
z
f
(DCO = 2)
F
N
_
8
=
F
N
_
4
=
F
N
_
3
=
0
,
F
N
_
2
=
1
,
D
C
O
P
L
U
S
=
1
V
CC
=3V 0.8 1.5 2.5
MHz
f
F
N
8
F
N
4
F
N
3
0
F
N
2
1
D
O
P
L
U
S
1
V
CC
=2.2V 5.7 10.8 18
M
H
z
f
(DCO = 27)
FN
_
8=FN
_
4=FN
_
3=0,FN
_
2 = 1, DOPLUS = 1
V
CC
=3V 6.5 12.1 20
MHz
f
F
N
8
F
N
4
0
F
N
3
1
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 1.2 2 3
M
H
z
f
(DCO = 2)
FN
_
8=FN
_
4=0,FN
_
3=1,FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 1.3 2.2 3.5
MHz
f
F
N
8
F
N
4
0
F
N
3
1
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 9 15.5 25
M
H
z
f
(DCO = 27)
FN
_
8=FN
_
4=0,FN
_
3=1,FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 10.3 17.9 28.5
MHz
f
F
N
8
0
F
N
4
1
F
N
3
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 1.8 2.8 4.2
M
H
z
f
(DCO = 2)
FN
_
8=0,FN
_
4=1,FN
_
3=FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 2.1 3.4 5.2
MHz
f
F
N
8
0
F
N
4
1
F
N
3
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 13.5 21.5 33
M
H
z
f
(DCO = 27)
FN
_
8=0,FN
_
4=1,FN
_
3=FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 16 26.6 41
MHz
f
F
N
8
1
F
N
4
F
N
3
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 2.8 4.2 6.2
M
H
z
f
(DCO = 2)
FN
_
8=1,FN
_
4=FN
_
3=FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 4.2 6.3 9.2
MHz
f
F
N
8
1
F
N
4
F
N
3
F
N
2
x
D
C
O
P
L
U
S
1
V
CC
=2.2V 21 32 46
M
H
z
f
(DCO = 27)
FN
_
8=1,FN
_
4=FN
_
3=FN
_
2 = x, DCOPLUS = 1
V
CC
=3V 30 46 70
MHz
S
Ste
p
size between ad
j
acent DCO ta
p
s:
1<TAP 20 1.06 1.11
S
n
S
t
e
p
s
i
z
e
b
e
t
w
e
e
n
a
d
j
a
c
e
n
t
D
C
O
t
a
p
s
:
S
n
=f
DCO(Tap n+1)
/f
DCO(Tap n)
, (see Figure 14 for taps 21 to 27)
TAP = 27 1.07 1.17
D
t
Tem
p
erature dri
f
t, N
(
D
C
O
)
= 01Eh, FN
_
8=FN
_
4=FN
_
3=FN
_
2=0
V
CC
=2.2V –0.2 –0.4 –0.6
%

_
C
D
t
T
e
m
p
e
r
a
t
u
r
e
d
r
i
f
t
,
N
(
D
C
O
)
=
0
1
E
h
,
F
N
_
8
=
F
N
_
4
=
F
N
_
3
=
F
N
_
2
=
0
D = 2, DCOPLUS = 0
V
CC
=3V –0.2 –0.4 –0.6
%_C
D
V
Drift with V
CC
variation, N
(DCO)
= 01Eh, FN_8 = FN_4 = FN_3 =
FN_2=0,D=2,DCOPLUS=0
V
CC
=2.2V/3V 0 5 15 %/V
T
A
-- CV
CC
-- V
f
(DCO)
f
(DCO25

C)
f
(DCO)
f
(DCO3V)
1.8 3.02.4 3.6
1.0
20 6040 85
1.0
0-- 2 0-- 4 00
Figure 13. DCO Frequency vs Supply Voltage V
CC
and v s Ambient Temperature