MSP430C11x1, MSP430F11x1A

MIXED SIGNAL MICROCONTROLLER

SLAS241H − SEPTEMBER 1999 − REVISED SEPTEMBER 2004

23

POST OFFICE BOX 655303

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted) (continued)

main DCO characteristics

32

MOD

PARAMETER

TEST CONDITIONS

VCC

MIN

NOM

MAX

UNIT

fDCO, DCO output frequency

Rsel = 4, DCO = 3, MOD = 0, DCOR = 1,

2.2 V

1.8

±15%

MHz

fDCO, DCO output frequency

Rsel = 4, DCO = 3, MOD = 0, DCOR = 1,

TA = 25°C

3 V

1.95

±15%

MHz

Dt, Temperature drift

Rsel = 4, DCO = 3, MOD = 0, DCOR = 1

2.2 V/3 V

±0.1

%/

°C

Dv, Drift with VCC variation

Rsel = 4, DCO = 3, MOD = 0, DCOR = 1

2.2 V/3 V

10

%/V

NOTES:

1. ROSC = 100kΩ. Metal film resistor, type 0257. 0.6 watt with 1% tolerance and TK = ±50ppm/°C.

crystal oscillator, LFXT1

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CXIN

Input capacitance

XTS=0; LF mode selected.

VCC = 2.2 V / 3 V

12

pF

CXIN

Input capacitance

XTS=1; XT1 mode selected.

VCC = 2.2 V / 3 V (see Note 1)

2

pF

CXOUT

Output capacitance

XTS=0; LF mode selected.

VCC = 2.2 V / 3 V

12

pF

CXOUT

Output capacitance

XTS=1; XT1 mode selected.

VCC = 2.2 V / 3 V (see Note 1)

2

pF

VIL

Input levels at XIN

VCC = 2.2 V/3 V (see Note 2)

VSS

0.2

×VCC

V

VIH

Input levels at XIN

VCC = 2.2 V/3 V (see Note 2)

0.8

×VCC

VCC

V

NOTES:

1. Requires external capacitors at both terminals. Values are specified by crystal manufacturers.

2. Applies only when using an external logic-level clock source. Not applicable when using a crystal or resonator.