MSP430G2230-EP Datasheet, PDF (22/40 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2230-EP
SLAS863 – AUGUST 2012
www.ti.com
Wake-Up From Lower-Power Modes (LPM3/4)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
BCSCTL1 = CALBC1_1MHZ,
DCOCTL = CALDCO_1MHZ
V_CC
MIN
TYP MAX UNIT
2
t_DCO,LPM3/4
BCSCTL1 = CALBC1_8MHZ,
DCO clock wake-up time ^{DCOCTL = CALDCO_8MHZ}
from LPM3/4⁽¹⁾
BCSCTL1 = CALBC1_12MHZ,
DCOCTL = CALDCO_12MHZ
2.2 V/3 V
1.5
µs
1
BCSCTL1 = CALBC1_16MHZ,
DCOCTL = CALDCO_16MHZ
3V
1
t_CPU,LPM3/4
CPU wake-up time from
LPM3/4 ⁽²⁾
1 / f_MCLK +
t_Clock,LPM3/4
(1) The DCO clock wake-up time is measured from the edge of an external wake-up signal (for example, 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
DCO WAKE-UP TIME FROM LPM3
vs
DCO FREQUENCY
10.00
RSELx = 0...11
1.00
RSELx = 12...15
0.10
0.10
1.00
10.00
DCO Frequency − MHz
Figure 14.
22
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