MSP430F6779IPZ datasheet(66/157 Pages) TI

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ECCN 5E002 TSPA - Technology / Software Publicly Available

MSP430F677x

MSP430F676x

MSP430F674x

SLAS768C – SEPTEMBER 2012 – REVISED APRIL 2013

www.ti.com

Internal Very-Low-Power Low-Frequency Oscillator (VLO)

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

fVLO

VLO frequency

Measured at ACLK

1.8 V to 3.6 V

9.6

kHz

dfVLO/dT

VLO frequency temperature drift

Measured at ACLK

1.8 V to 3.6 V

0.5

%/°C

dfVLO/dVCC VLO frequency supply voltage drift

Measured at ACLK

1.8 V to 3.6 V

%/V

Duty cycle

Measured at ACLK

1.8 V to 3.6 V

Internal Reference, Low-Frequency Oscillator (REFO)

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

IREFO

REFO oscillator current consumption

TA = 25°C

1.8 V to 3.6 V

µA

REFO frequency calibrated

Measured at ACLK

1.8 V to 3.6 V

32768

fREFO

Full temperature range

1.8 V to 3.6 V

-3.5

+3.5

REFO absolute tolerance calibrated

TA = 25°C

3 V

-1.5

+1.5

dfREFO/dT

REFO frequency temperature drift

Measured at ACLK

1.8 V to 3.6 V

0.01

%/°C

dfREFO/dVCC

REFO frequency supply voltage drift

Measured at ACLK

1.8 V to 3.6 V

1.0

%/V

Duty cycle

Measured at ACLK

1.8 V to 3.6 V

tSTART

REFO startup time

40%/60% duty cycle

1.8 V to 3.6 V

µs

DCO Frequency

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

fDCO(0,0)

DCO frequency (0, 0)(1)

DCORSELx = 0, DCOx = 0, MODx = 0

0.07

0.20

MHz

fDCO(0,31)

DCO frequency (0, 31)(1)

DCORSELx = 0, DCOx = 31, MODx = 0

0.70

1.70

MHz

fDCO(1,0)

DCO frequency (1, 0)(1)

DCORSELx = 1, DCOx = 0, MODx = 0

0.15

0.36

MHz

fDCO(1,31)

DCO frequency (1, 31)(1)

DCORSELx = 1, DCOx = 31, MODx = 0

1.47

3.45

MHz

fDCO(2,0)

DCO frequency (2, 0)(1)

DCORSELx = 2, DCOx = 0, MODx = 0

0.32

0.75

MHz

fDCO(2,31)

DCO frequency (2, 31)(1)

DCORSELx = 2, DCOx = 31, MODx = 0

3.17

7.38

MHz

fDCO(3,0)

DCO frequency (3, 0)(1)

DCORSELx = 3, DCOx = 0, MODx = 0

0.64

1.51

MHz

fDCO(3,31)

DCO frequency (3, 31)(1)

DCORSELx = 3, DCOx = 31, MODx = 0

6.07

14.0

MHz

fDCO(4,0)

DCO frequency (4, 0)(1)

DCORSELx = 4, DCOx = 0, MODx = 0

1.3

3.2

MHz

fDCO(4,31)

DCO frequency (4, 31)(1)

DCORSELx = 4, DCOx = 31, MODx = 0

12.3

28.2

MHz

fDCO(5,0)

DCO frequency (5, 0)(1)

DCORSELx = 5, DCOx = 0, MODx = 0

2.5

6.0

MHz

fDCO(5,31)

DCO frequency (5, 31)(1)

DCORSELx = 5, DCOx = 31, MODx = 0

23.7

54.1

MHz

fDCO(6,0)

DCO frequency (6, 0)(1)

DCORSELx = 6, DCOx = 0, MODx = 0

4.6

10.7

MHz

fDCO(6,31)

DCO frequency (6, 31)(1)

DCORSELx = 6, DCOx = 31, MODx = 0

39.0

88.0

MHz

fDCO(7,0)

DCO frequency (7, 0)(1)

DCORSELx = 7, DCOx = 0, MODx = 0

8.5

19.6

MHz

fDCO(7,31)

DCO frequency (7, 31)(1)

DCORSELx = 7, DCOx = 31, MODx = 0

135

MHz

Frequency step between range

SDCORSEL

SRSEL = fDCO(DCORSEL+1,DCO)/fDCO(DCORSEL,DCO)

1.2

2.3

ratio

DCORSEL and DCORSEL + 1

Frequency step between tap

SDCO

SDCO = fDCO(DCORSEL,DCO+1)/fDCO(DCORSEL,DCO)

1.02

1.12

ratio

DCO and DCO + 1

Duty cycle

Measured at SMCLK

dfDCO/dT

DCO frequency temperature drift

fDCO = 1 MHz

0.1

%/°C

(1)

When selecting the proper DCO frequency range (DCORSELx), the target DCO frequency, fDCO, should be set to reside within the

range of fDCO(n, 0),MAX ≤ fDCO ≤ fDCO(n, 31),MIN, where fDCO(n, 0),MAX represents the maximum frequency specified for the DCO frequency,

range n, tap 0 (DCOx = 0) and fDCO(n,31),MIN represents the minimum frequency specified for the DCO frequency, range n, tap

31 (DCOx = 31). This ensures that the target DCO frequency resides within the range selected. It should also be noted that if the actual

fDCO frequency for the selected range causes the FLL or the application to select tap 0 or 31, the DCO fault flag is set to report that the

selected range is at its minimum or maximum tap setting.

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MSP430F6779IPZ Datasheet(PDF) 66 Page - Texas Instruments

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