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参数资料
型号： MSP430G2001IRSA16
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, PQCC16
封装： GREEN, PLASTIC, QFN-16
文件页数： 15/48页
文件大小： 1094K
代理商： MSP430G2001IRSA16
DCO(RSEL,DCO+1)
DCO(RSEL,DCO)
average
DCO(RSEL,DCO)
DCO(RSEL,DCO+1)
32 × f
× f
f
=
MOD × f
+ (32 – MOD) × f
MSP430G2x11
MSP430G2x01
SLAS695D
– FEBRUARY 2010 – REVISED FEBRUARY 2011
www.ti.com
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
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
RSELx
< 14
1.8
3.6
V
VCC
Supply voltage
RSELx = 14
2.2
3.6
V
RSELx = 15
3
3.6
V
fDCO(0,0)
DCO frequency (0, 0)
RSELx = 0, DCOx = 0, MODx = 0
3 V
0.06
0.14
MHz
fDCO(0,3)
DCO frequency (0, 3)
RSELx = 0, DCOx = 3, MODx = 0
3 V
0.12
MHz
fDCO(1,3)
DCO frequency (1, 3)
RSELx = 1, DCOx = 3, MODx = 0
3 V
0.15
MHz
fDCO(2,3)
DCO frequency (2, 3)
RSELx = 2, DCOx = 3, MODx = 0
3 V
0.21
MHz
fDCO(3,3)
DCO frequency (3, 3)
RSELx = 3, DCOx = 3, MODx = 0
3 V
0.3
MHz
fDCO(4,3)
DCO frequency (4, 3)
RSELx = 4, DCOx = 3, MODx = 0
3 V
0.41
MHz
fDCO(5,3)
DCO frequency (5, 3)
RSELx = 5, DCOx = 3, MODx = 0
3 V
0.58
MHz
fDCO(6,3)
DCO frequency (6, 3)
RSELx = 6, DCOx = 3, MODx = 0
3 V
0.8
MHz
fDCO(7,3)
DCO frequency (7, 3)
RSELx = 7, DCOx = 3, MODx = 0
3 V
0.8
1.5
MHz
fDCO(8,3)
DCO frequency (8, 3)
RSELx = 8, DCOx = 3, MODx = 0
3 V
1.6
MHz
fDCO(9,3)
DCO frequency (9, 3)
RSELx = 9, DCOx = 3, MODx = 0
3 V
2.3
MHz
fDCO(10,3)
DCO frequency (10, 3)
RSELx = 10, DCOx = 3, MODx = 0
3 V
3.4
MHz
fDCO(11,3)
DCO frequency (11, 3)
RSELx = 11, DCOx = 3, MODx = 0
3 V
4.25
MHz
fDCO(12,3)
DCO frequency (12, 3)
RSELx = 12, DCOx = 3, MODx = 0
3 V
4.3
7.3
MHz
fDCO(13,3)
DCO frequency (13, 3)
RSELx = 13, DCOx = 3, MODx = 0
3 V
7.8
MHz
fDCO(14,3)
DCO frequency (14, 3)
RSELx = 14, DCOx = 3, MODx = 0
3 V
8.6
13.9
MHz
fDCO(15,3)
DCO frequency (15, 3)
RSELx = 15, DCOx = 3, MODx = 0
3 V
15.25
MHz
fDCO(15,7)
DCO frequency (15, 7)
RSELx = 15, DCOx = 7, MODx = 0
3 V
21
MHz
Frequency step between
SRSEL
range RSEL and
SRSEL = fDCO(RSEL+1,DCO)/fDCO(RSEL,DCO)
3 V
1.35
ratio
RSEL+1
Frequency step between
SDCO
SDCO = fDCO(RSEL,DCO+1)/fDCO(RSEL,DCO)
3 V
1.08
ratio
tap DCO and DCO+1
Duty cycle
Measured at SMCLK output
3 V
50
%
22
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2010–2011, Texas Instruments Incorporated
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