Datasheet

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
33
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
calibrated DCO frequencies − tolerance at calibration
PARAMETER TEST CONDITIONS T
A
VCC MIN TYP MAX UNIT
Frequency tolerance at calibration 25°C 3 V −1 ±0.2 +1 %
f
CAL(1MHz)
1-MHz calibration value
BCSCTL1= CALBC1_1MHZ,
DCOCTL = CALDCO_1MHZ,
Gating time: 5 ms
25°C 3 V 0.990 1 1.010 MHz
f
CAL(8MHz)
8-MHz calibration value
BCSCTL1= CALBC1_8MHZ,
DCOCTL = CALDCO_8MHZ,
Gating time: 5 ms
25°C 3 V 7.920 8 8.080 MHz
f
CAL(12MHz)
12-MHz calibration value
BCSCTL1= CALBC1_12MHZ,
DCOCTL = CALDCO_12MHZ,
Gating time: 5 ms
25°C 3 V 11.88 12 12.12 MHz
f
CAL(16MHz)
16-MHz calibration value
BCSCTL1= CALBC1_16MHZ,
DCOCTL = CALDCO_16MHZ,
Gating time: 2 ms
25°C 3 V 15.84 16 16.16 MHz
calibrated DCO frequencies − tolerance over temperature 0°C to +85°C
PARAMETER TEST CONDITIONS T
A
VCC MIN TYP MAX UNIT
1-MHz tolerance over temperature 0−85°C 3.0 V −2.5 ±0.5 +2.5 %
8-MHz tolerance over temperature 0−85°C 3.0 V −2.5 ±1.0 +2.5 %
12-MHz tolerance over temperature 0−85°C 3.0 V −2.5 ±1.0 +2.5 %
16-MHz tolerance over temperature 0−85°C 3.0 V −3.0 ±2.0 +3.0 %
BCSCTL1
=
CALBC1 1MHZ,
2.2 V 0.970 1 1.030
f
CAL
(
1MHz
)
1-MHz calibration value
BCSCTL1
=
CALBC1
_
1MHZ
,
DCOCTL = CALDCO_1MHZ,
0−85°C
3.0 V 0.975 1 1.025
MHz
f
CAL(1MHz)
1 MHz
calibration
value
DCOCTL
CALDCO
_
1MHZ,
Gating time: 5 ms
085C
3.6 V 0.970 1 1.030
MHz
BCSCTL1
=
CALBC1 8MHZ,
2.2 V 7.760 8 8.400
f
CAL
(
8MHz
)
8-MHz calibration value
BCSCTL1
=
CALBC1
_
8MHZ
,
DCOCTL = CALDCO_8MHZ,
0−85°C
3.0 V 7.800 8 8.200
MHz
f
CAL(8MHz)
8 MHz
calibration
value
DCOCTL
CALDCO
_
8MHZ,
Gating time: 5 ms
085C
3.6 V 7.600 8 8.240
MHz
BCSCTL1
=
CALBC1 12MHZ,
2.2 V 11.70 12 12.30
f
CAL
(
12MHz
)
12-MHz calibration value
BCSCTL1
=
CALBC1
_
12MHZ
,
DCOCTL = CALDCO_12MHZ,
0−85°C
3.0 V 11.70 12 12.30
MHz
f
CAL(12MHz)
12 MHz
calibration
value
DCOCTL
CALDCO
_
12MHZ,
Gating time: 5 ms
085C
3.6 V 11.70 12 12.30
MHz
f
16 MHz calibration value
BCSCTL1= CALBC1_16MHZ,
DCOCTL CALDCO 16MHZ
085°C
3.0 V 15.52 16 16.48
MHz
f
CAL(16MHz)
16-MHz calibration value
DCOCTL = CALDCO_16MHZ,
Gating time: 2 ms
0−85°C
3.6 V 15.00 16 16.48
MHz