msp430f2121irge Microchip Technology Inc., msp430f2121irge Datasheet - Page 25

• Manufacturer Part Number: msp430f2121irge
• Description: Msp430
• Manufacturer: Microchip Technology Inc.

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)
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
typical characteristics − DCO clock wake−up time from LPM3/4
t DCO,LPM3/4 LPM3/4
t DCO,LPM3/4
t CPU,LPM3/4
2. Parameter applicable only if DCOCLK is used for MCLK.
observable externally on a clock pin (MCLK or SMCLK).
DCO clock wake−up time from
LPM3/4
(see Note 1)
CPU wake−up time from LPM3/4
(see Note 2)
PARAMETER
Figure 13. DCO wake−up time from LPM3 vs DCO frequency
10.00
1.00
0.10
0.10
POST OFFICE BOX 655303
RSELx = 0...11
BCSCTL1= CALBC1_1MHZ;
DCOCTL = CALDCO_1MHZ
BCSCTL1= CALBC1_8MHZ;
DCOCTL = CALDCO_8MHZ
BCSCTL1= CALBC1_12MHZ;
DCOCTL = CALDCO_12MHZ
BCSCTL1= CALBC1_16MHZ;
DCOCTL = CALDCO_16MHZ
TEST CONDITIONS
DCO Frequency − MHz
1.00
•
DALLAS, TEXAS 75265
MIXED SIGNAL MICROCONTROLLER
RSELx = 12...15
10.00
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
2.2 V/3 V
2.2 V/3 V
2.2 V/3 V
VCC
3 V
MIN
t Clock,LPM3/4
1/f MCLK +
TYP
MSP430x21x1
MAX
1.5
2
1
1
UNIT
µs
s
25