MSP430F241X_11 Datasheet, PDF (47/107 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F241x, MSP430F261x
MIXED SIGNAL MICROCONTROLLER
SLAS541G -- JUNE 2007 -- REVISED MARCH 2011
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
wake-up from low-power modes (LPM3/LPM4)
PARAMETER
TEST CONDITIONS
BCSCTL1= CALBC1_1MHZ,
DCOCTL = CALDCO_1MHZ
V_CC
2.2 V/3 V
MIN TYP MAX UNIT
2
t_DCO,LPM3/4
DCO clock wake-up time from 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
s
1
BCSCTL1= CALBC1_16MHZ,
DCOCTL = CALDCO_16MHZ
3V
1
t_CPU,LPM3/4
CPU wake-up time from LPM3/4
(see Note 2)
1/f_MCLK +
t_Clock,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
1.00
RSELx = 0 to 11
RSELx = 12 to 15
0.10
0.10
1.00
10.00
DCO Frequency -- MHz
Figure 18. Clock Wake-Up Time From LPM3 vs DCO Frequency
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47