参数资料
型号: MSP430AFE222IPW
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, RISC MICROCONTROLLER, PDSO24
封装: GREEN, PLASTIC, TSSOP-24
文件页数: 19/47页
文件大小: 900K
代理商: MSP430AFE222IPW
DCO Frequency MHz
0.10
1.00
10.00
0.10
1.00
10.00
DCO
W
ake
T
ime
us
RSELx = 0...11
RSELx = 12...15
MSP430AFE2x3
MSP430AFE2x2
MSP430AFE2x1
SLAS701A
– NOVEMBER 2010 – REVISED MARCH 2011
Calibrated DCO Frequencies
– Tolerance
PARAMETER
TEST CONDITIONS
TA
VCC
MIN
TYP
MAX
UNIT
BCSCTL1 = CALBC1_8MHZ,
8-MHz tolerance over
DCOCTL = CALDCO_8MHZ,
0
°C to 85°C
3.3 V
7.76
8
8.24
MHz
temperature(1)
calibrated at 30
°C and 3.3V
BCSCTL1 = CALBC1_8MHZ,
8-MHz tolerance over VCC
DCOCTL = CALDCO_8MHZ,
30
°C
2.7 V to 3.6 V
7.76
8
8.24
MHz
calibrated at 30
°C and 3.3V
BCSCTL1 = CALBC1_8MHZ,
8-MHz tolerance overall
DCOCTL = CALDCO_8MHZ,
-40
°C to 85°C
2.7 V to 3.6 V
7.52
8
8.48
MHz
calibrated at 30
°C and 3.3V
BCSCTL1 = CALBC1_12MHZ,
12-MHz tolerance over
DCOCTL = CALDCO_12MHZ,
0
°C to 85°C
3.3 V
11.64
12
12.36
MHz
temperature(1)
calibrated at 30
°C and 3.3V
BCSCTL1 = CALBC1_12MHZ,
12-MHz tolerance over VCC
DCOCTL = CALDCO_12MHZ,
30
°C
3.3 V to 3.6 V
11.64
12
12.36
MHz
calibrated at 30
°C and 3.3V
BCSCTL1 = CALBC1_12MHZ,
12-MHz tolerance overall
DCOCTL = CALDCO_12MHZ,
-40
°C to 85°C
3.3 V to 3.6 V
11.28
12
12.72
MHz
calibrated at 30
°C and 3.3V
(1)
This is the frequency change from the measured frequency at 30
°C over temperature.
Wake-Up From Lower-Power Modes (LPM3/4)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
DCO clock wake-up time from
fDCO = DCO default frequency
tDCO,LPM3/4
3 V
1.5
s
LPM3/4(1)
(approximately 1 MHz)
CPU wake-up time from
1 / fMCLK +
tCPU,LPM3/4
s
LPM3/4(2)
tDCO,LPM3/4
(1)
The DCO clock wake-up time is measured from the edge of an external wake-up signal (for example, a 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
Figure 14. Clock Wake-Up Time From LPM3 vs DCO Frequency
26
Copyright
2010–2011, Texas Instruments Incorporated
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