MSP430F412 datasheet(34/55 Pages) TI

34 / 55 page

MSP430x41x

MIXED SIGNAL MICROCONTROLLER

SLAS340G − MAY 2001 − REVISED JUNE 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

noted) (continued)

DCO

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

f(DCOCLK)

N(DCO)=01E0h, FN_8=FN_4=FN_3=FN_2=0, D = 2; DCOPLUS= 0

2.2 V/3 V

MHz

f(DCO2)

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

2.2 V

0.3

0.65

1.25

MHz

f(DCO2)

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

3 V

0.3

0.7

1.3

MHz

f(DCO27)

FN_8=FN_4=FN_3=FN_2=0; DCOPLUS = 1, (see Note 1)

2.2 V

2.5

5.6

10.5

MHz

f(DCO27)

FN_8=FN_4=FN_3=FN_2=0; DCOPLUS = 1, (see Note 1)

3 V

2.7

6.1

11.3

MHz

f(DCO2)

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

2.2 V

0.7

1.3

2.3

MHz

f(DCO2)

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

3 V

0.8

1.5

2.5

MHz

f(DCO27)

FN_8=FN_4=FN_3=0, FN_2=1; DCOPLUS = 1, (see Note 1)

2.2 V

5.7

10.8

MHz

f(DCO27)

FN_8=FN_4=FN_3=0, FN_2=1; DCOPLUS = 1, (see Note 1)

3 V

6.5

12.1

MHz

f(DCO2)

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

2.2 V

1.2

MHz

f(DCO2)

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

3 V

1.3

2.2

3.5

MHz

f(DCO27)

FN_8=FN_4=0, FN_3= 1, FN_2=x; DCOPLUS = 1, (see Note 1)

2.2 V

15.5

MHz

f(DCO27)

FN_8=FN_4=0, FN_3= 1, FN_2=x; DCOPLUS = 1, (see Note 1)

3 V

10.3

17.9

28.5

MHz

f(DCO2)

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

2.2 V

1.8

2.8

4.2

MHz

f(DCO2)

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

3 V

2.1

3.4

5.2

MHz

f(DCO27)

FN_8=0, FN_4=1, FN_3= FN_2=x; DCOPLUS = 1, (see Note 1)

2.2 V

13.5

21.5

MHz

f(DCO27)

FN_8=0, FN_4=1, FN_3= FN_2=x; DCOPLUS = 1, (see Note 1)

3 V

26.6

MHz

f(DCO2)

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

2.2 V

2.8

4.2

6.2

MHz

f(DCO2)

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

3 V

4.2

6.3

9.2

MHz

f(DCO27)

FN_8=1,FN_4=FN_3=FN_2=x; DCOPLUS = 1, (see Note 1)

2.2 V

MHz

f(DCO27)

FN_8=1,FN_4=FN_3=FN_2=x; DCOPLUS = 1, (see Note 1)

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 20 for taps 21 to 27)

TAP = 27

1.07

1.17

Temperature drift, N(DCO) = 01E0h, FN_8=FN_4=FN_3=FN_2=0

2.2 V

–0.2

–0.3

–0.4

/_C

Temperature drift, N(DCO) = 01E0h, FN_8=FN_4=FN_3=FN_2=0

D = 2; DCOPLUS = 0, (see Note 2)

3 V

–0.2

–0.3

–0.4

/_C

Drift with VCC variation, N(DCO) = 01E0h, FN_8=FN_4=FN_3=FN_2=0

D = 2; DCOPLUS = 0 (see Note 2)

%/V

NOTES:

1. Do not exceed the maximum system frequency.

2. This parameter is not production tested.

TA − °C

VCC − V

(DCO)

(DCO20

5C)

(DCO)

(DCO3V)

1.8

3.0

2.4

3.6

1.0

−20

−40

Figure 19. DCO Frequency vs Supply Voltage VCC and vs Ambient Temperature

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