MSP430F2101 Datasheet, PDF (25/53 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x21x1
MIXED SIGNAL MICROCONTROLLER
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
wake-up from lower power modes (LPM3/4)
PARAMETER
TEST CONDITIONS
VCC
MIN TYP MAX UNIT
BCSCTL1= CALBC1_1MHZ;
DCOCTL = CALDCO_1MHZ
2.2 V/3 V
2
DCO clock wake−up time from
tDCO,LPM3/4 LPM3/4
(see Note 1)
BCSCTL1= CALBC1_8MHZ;
DCOCTL = CALDCO_8MHZ
BCSCTL1= CALBC1_12MHZ;
DCOCTL = CALDCO_12MHZ
2.2 V/3 V
2.2 V/3 V
1.5
µs
1
BCSCTL1= CALBC1_16MHZ;
DCOCTL = CALDCO_16MHZ
3V
1
CPU wake−up time from LPM3/4
tCPU,LPM3/4 _{(see Note 2)}
1/fMCLK +
tClock,LPM3/4
NOTES: 1. The DCO clock wake−up time is measured from the edge of an external wake−up signal (e.g. port interrupt) to the first clock edge
observable externally on a clock pin (MCLK or SMCLK).
2. Parameter applicable only if DCOCLK is used for MCLK.
typical characteristics − DCO clock wake−up time from LPM3/4
10.00
RSELx = 0...11
1.00
RSELx = 12...15
0.10
0.10
1.00
10.00
DCO Frequency − MHz
Figure 13. DCO wake−up time from LPM3 vs DCO frequency
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