參數(shù)資料
型號(hào)： MSP430F2274MDATEP
廠商： TEXAS INSTRUMENTS INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, RISC MICROCONTROLLER, PDSO38
封裝： GREEN, PLASTIC, TSSOP-38
文件頁(yè)數(shù)： 19/80頁(yè)
文件大?。?/td> 1269K
代理商： MSP430F2274MDATEP
faverage +
32
f
DCO(RSEL,DCO)
f
DCO(RSEL,DCO ) 1)
MOD
f
DCO(RSEL,DCO)
) (32 * MOD)
f
DCO(RSEL,DCO
) 1)
SLAS614D
– SEPTEMBER 2008 – REVISED MAY 2011
Main DCO Characteristics
All ranges selected by RSELx overlap with RSELx + 1: RSELx = 0 overlaps RSELx = 1, ... RSELx = 14
overlaps RSELx = 15.
DCO control bits DCOx have a step size as defined by parameter SDCO.
Modulation control bits MODx select how often fDCO(RSEL,DCO+1) is used within the period of 32 DCOCLK
cycles. The frequency fDCO(RSEL,DCO) is used for the remaining cycles. The frequency is an average equal to:
DCO Frequency
– Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
VCC
MIN
TYP MAX
UNIT
RSELx
< 14
–55°C to 125°C
1.8
3.6
VCC
Supply voltage range
RSELx = 14
–55°C to 125°C
2.2
3.6
V
RSELx = 15
–55°C to 125°C
3.0
3.6
RSELx = 0, DCOx = 0,
fDCO(0,0)
DCO frequency (0, 0)
–55°C to 125°C
2.2 V/3 V
0.06
0.14
MHz
MODx = 0
RSELx = 0, DCOx = 3,
fDCO(0,3)
DCO frequency (0, 3)
–55°C to 125°C
2.2 V/3 V
0.07
0.17
MHz
MODx = 0
RSELx = 1, DCOx = 3,
fDCO(1,3)
DCO frequency (1, 3)
–55°C to 125°C
2.2 V/3 V
0.10
0.20
MHz
MODx = 0
RSELx = 2, DCOx = 3,
fDCO(2,3)
DCO frequency (2, 3)
–55°C to 125°C
2.2 V/3 V
0.14
0.28
MHz
MODx = 0
RSELx = 3, DCOx = 3,
fDCO(3,3)
DCO frequency (3, 3)
–55°C to 125°C
2.2 V/3 V
0.20
0.40
MHz
MODx = 0
RSELx = 4, DCOx = 3,
fDCO(4,3)
DCO frequency (4, 3)
–55°C to 125°C
2.2 V/3 V
0.28
0.54
MHz
MODx = 0
RSELx = 5, DCOx = 3,
fDCO(5,3)
DCO frequency (5, 3)
–55°C to 125°C
2.2 V/3 V
0.39
0.77
MHz
MODx = 0
RSELx = 6, DCOx = 3,
fDCO(6,3)
DCO frequency (6, 3)
–55°C to 125°C
2.2 V/3 V
0.54
1.06
MHz
MODx = 0
RSELx = 7, DCOx = 3,
fDCO(7,3)
DCO frequency (7, 3)
–55°C to 125°C
2.2 V/3 V
0.80
1.50
MHz
MODx = 0
RSELx = 8, DCOx = 3,
fDCO(8,3)
DCO frequency (8, 3)
–55°C to 125°C
2.2 V/3 V
1.10
2.10
MHz
MODx = 0
RSELx = 9, DCOx = 3,
fDCO(9,3)
DCO frequency (9, 3)
–55°C to 125°C
2.2 V/3 V
1.60
3.00
MHz
MODx = 0
RSELx = 10, DCOx = 3,
fDCO(10,3)
DCO frequency (10, 3)
–55°C to 125°C
2.2 V/3 V
2.50
4.30
MHz
MODx = 0
RSELx = 11, DCOx = 3,
fDCO(11,3)
DCO frequency (11, 3)
–55°C to 125°C
2.2 V/3 V
3.00
5.50
MHz
MODx = 0
RSELx = 12, DCOx = 3,
fDCO(12,3)
DCO frequency (12, 3)
–55°C to 125°C
2.2 V/3 V
4.30
7.30
M Hz
MODx = 0
RSELx = 13, DCOx = 3,
fDCO(13,3)
DCO frequency (13, 3)
–55°C to 125°C
2.2 V/3 V
6.00
9.60
MHz
MODx = 0
RSELx = 14, DCOx = 3,
fDCO(14,3)
DCO frequency (14, 3)
–55°C to 125°C
2.2 V/3 V
8.60
13.9
MHz
MODx = 0
RSELx = 15, DCOx = 3,
fDCO(15,3)
DCO frequency (15, 3)
–55°C to 125°C
3 V
12.0
18.5
MHz
MODx = 0
RSELx = 15, DCOx = 7,
fDCO(15,7)
DCO frequency (15, 7)
–55°C to 125°C
3 V
16.0
26.0
MHz
MODx = 0
Frequency step
SRSEL =
SRSEL
between range RSEL
–55°C to 125°C
2.2 V/3 V
1.55
ratio
fDCO(RSEL+1,DCO)/fDCO(RSEL,DCO)
and RSEL+1
26
Copyright
2008–2011, Texas Instruments Incorporated
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