MSP430F449IPZ datasheet(48/79 Pages) TI

48 / 79 page

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x

MIXED SIGNAL MICROCONTROLLER

SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature (unless otherwise

noted) (continued)

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,

fCrystal = 32.768 kHz

VCC = 2.2 V/3 V

MHz

FN 8 FN 4 FN 3 FN 2 0; DCOPLUS

VCC = 2.2 V

0.3

0.65

1.25

MHz

f(DCO=2)

FN_8=FN_4=FN_3=FN_2=0; DCOPLUS = 1

VCC = 3 V

0.3

0.7

1.3

MHz

FN 8 FN 4 FN 3 FN 2 0; DCOPLUS

VCC = 2.2 V

2.5

5.6

10.5

MHz

f(DCO=27)

FN_8=FN_4=FN_3=FN_2=0; DCOPLUS = 1

VCC = 3 V

2.7

6.1

11.3

MHz

FN_8=FN_4=FN_3=0, FN_2=1; DCOPLUS = 1

VCC = 2.2 V

0.7

1.3

2.3

MHz

f(DCO=2)

FN_8=FN_4=FN_3=0, FN_2=1; DCOPLUS = 1

VCC = 3 V

0.8

1.5

2.5

MHz

FN 8 FN 4 FN 3 0 FN 2 1; DCOPLUS

VCC = 2.2 V

5.7

10.8

MHz

f(DCO=27)

FN_8=FN_4=FN_3=0, FN_2=1; DCOPLUS = 1

VCC = 3 V

6.5

12.1

MHz

FN 8 FN 4 0 FN 3 1 FN 2 x; DCOPLUS

VCC = 2.2 V

1.2

MHz

f(DCO=2)

FN_8=FN_4=0, FN_3= 1, FN_2=x; DCOPLUS = 1

VCC = 3 V

1.3

2.2

3.5

MHz

FN 8 FN 4 0 FN 3 1 FN 2 x; DCOPLUS

VCC = 2.2 V

15.5

MHz

f(DCO=27)

FN_8=FN_4=0, FN_3= 1, FN_2=x; DCOPLUS = 1

VCC = 3 V

10.3

17.9

28.5

MHz

FN 8 0 FN 4 1 FN 3 FN 2 x; DCOPLUS

VCC = 2.2 V

1.8

2.8

4.2

MHz

f(DCO=2)

FN_8=0, FN_4= 1, FN_3= FN_2=x; DCOPLUS = 1

VCC = 3 V

2.1

3.4

5.2

MHz

FN 8 0 FN 4 1 FN 3 FN 2 x; DCOPLUS

VCC = 2.2 V

13.5

21.5

MHz

f(DCO=27)

FN_8=0, FN_4=1, FN_3= FN_2=x; DCOPLUS = 1

VCC = 3 V

26.6

MHz

FN 8 1 FN 4 FN 3 FN 2 x; DCOPLUS

VCC = 2.2 V

2.8

4.2

6.2

MHz

f(DCO=2)

FN_8=1, FN_4=FN_3=FN_2=x; DCOPLUS = 1

VCC = 3 V

4.2

6.3

9.2

MHz

FN 8 1 FN 4 FN 3 FN 2 x; DCOPLUS

VCC = 2.2 V

MHz

f(DCO=27)

FN_8=1,FN_4=FN_3=FN_2=x; DCOPLUS = 1

VCC = 3 V

MHz

Step size between adjacent DCO taps:

1 < TAP

≤ 20

1.06

1.11

Step size between adjacent DCO taps:

Sn = fDCO(Tap n+1) / fDCO(Tap n), (see Figure 16 for taps 21 to 27)

TAP = 27

1.07

1.17

Temperature drift, N(DCO) = 01Eh, FN_8=FN_4=FN_3=FN_2=0

VCC = 2.2 V

–0.2

–0.3

–0.4

/_C

Temperature drift, N(DCO) = 01Eh, FN_8=FN_4=FN_3=FN_2=0

D = 2; DCOPLUS = 0

VCC = 3 V

–0.2

–0.3

–0.4

/_C

Drift with VCC variation, N(DCO) = 01Eh,

FN_8=FN_4=FN_3=FN_2=0, D= 2; DCOPLUS = 0

VCC = 2.2 V/3 V

%/V

TA − °C

VCC − V

(DCO)

(DCO20

5C)

(DCO)

(DCO3V)

1.8

3.0

2.4

3.6

1.0

−20

−40

Figure 15. DCO Frequency vs Supply Voltage VCC and vs Ambient Temperature

MSP430F449IPZ Datasheet(PDF) 48 Page - Texas Instruments

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