參數(shù)資料
型號(hào)： MSP430F5527IPN
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 25 MHz, RISC MICROCONTROLLER, PQFP80
封裝： GREEN, PLASTIC, LQFP-80
文件頁數(shù)： 74/119頁
文件大小： 1351K
代理商： MSP430F5527IPN
0
1
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3
4
5
6
7
Typical DCO Frequency, V
= 3.0 V, T = 25°C
CC
A
DCORSEL
100
10
1
0.1
f
–
MHz
DCO
DCOx = 31
DCOx = 0
MSP430F551x
MSP430F552x
SLAS590E
– MARCH 2009 – REVISED APRIL 2011
DCO Frequency
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
fDCO(0,0)
DCO frequency (0, 0)
DCORSELx = 0, DCOx = 0, MODx = 0
0.07
0.20
MHz
fDCO(0,31)
DCO frequency (0, 31)
DCORSELx = 0, DCOx = 31, MODx = 0
0.70
1.70
MHz
fDCO(1,0)
DCO frequency (1, 0)
DCORSELx = 1, DCOx = 0, MODx = 0
0.15
0.36
MHz
fDCO(1,31)
DCO frequency (1, 31)
DCORSELx = 1, DCOx = 31, MODx = 0
1.47
3.45
MHz
fDCO(2,0)
DCO frequency (2, 0)
DCORSELx = 2, DCOx = 0, MODx = 0
0.32
0.75
MHz
fDCO(2,31)
DCO frequency (2, 31)
DCORSELx = 2, DCOx = 31, MODx = 0
3.17
7.38
MHz
fDCO(3,0)
DCO frequency (3, 0)
DCORSELx = 3, DCOx = 0, MODx = 0
0.64
1.51
MHz
fDCO(3,31)
DCO frequency (3, 31)
DCORSELx = 3, DCOx = 31, MODx = 0
6.07
14.0
MHz
fDCO(4,0)
DCO frequency (4, 0)
DCORSELx = 4, DCOx = 0, MODx = 0
1.3
3.2
MHz
fDCO(4,31)
DCO frequency (4, 31)
DCORSELx = 4, DCOx = 31, MODx = 0
12.3
28.2
MHz
fDCO(5,0)
DCO frequency (5, 0)
DCORSELx = 5, DCOx = 0, MODx = 0
2.5
6.0
MHz
fDCO(5,31)
DCO frequency (5, 31)
DCORSELx = 5, DCOx = 31, MODx = 0
23.7
54.1
MHz
fDCO(6,0)
DCO frequency (6, 0)
DCORSELx = 6, DCOx = 0, MODx = 0
4.6
10.7
MHz
fDCO(6,31)
DCO frequency (6, 31)
DCORSELx = 6, DCOx = 31, MODx = 0
39.0
88.0
MHz
fDCO(7,0)
DCO frequency (7, 0)
DCORSELx = 7, DCOx = 0, MODx = 0
8.5
19.6
MHz
fDCO(7,31)
DCO frequency (7, 31)
DCORSELx = 7, DCOx = 31, MODx = 0
60
135
MHz
Frequency step between range
SDCORSEL
SRSEL = fDCO(DCORSEL+1,DCO)/fDCO(DCORSEL,DCO)
1.2
2.3
ratio
DCORSEL and DCORSEL + 1
Frequency step between tap
SDCO
SDCO = fDCO(DCORSEL,DCO+1)/fDCO(DCORSEL,DCO)
1.02
1.12
ratio
DCO and DCO + 1
Duty cycle
Measured at SMCLK
40
50
60
%
DCO frequency temperature
dfDCO/dT
fDCO = 1 MHz,
0.1
%/
°C
drift(1)
dfDCO/dVCC
DCO frequency voltage drift(2)
fDCO = 1 MHz
1.9
%/V
(1)
Calculated using the box method: (MAX(-40 to 85
°C) – MIN(-40 to 85°C)) / MIN(-40 to 85°C) / (85°C – (–40°C))
(2)
Calculated using the box method: (MAX(1.8 to 3.6 V)
– MIN(1.8 to 3.6 V)) / MIN(1.8 to 3.6 V) / (3.6 V – 1.8 V)
Figure 10. Typical DCO frequency
58
Copyright
2009–2011, Texas Instruments Incorporated
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