參數(shù)資料
型號： MSP430F5438AIZQWR
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, PBGA113
封裝： PLASTIC, BGA-113
文件頁數(shù)： 51/104頁
文件大?。?/td> 1004K
代理商： MSP430F5438AIZQWR
MSP430F543xA, MSP430F541xA
SLAS655B – JANUARY 2010 – REVISED OCTOBER 2010
www.ti.com
Crystal Oscillator, XT2 (continued)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
XT2DRIVEx = 0, XT2BYPASS = 0,
450
fXT2,HF0 = 6 MHz, CL,eff = 15 pF
XT2DRIVEx = 1, XT2BYPASS = 0,
320
fXT2,HF1 = 12 MHz, CL,eff = 15 pF
Oscillation allowance for
OAHF
HF crystals(5)
XT2DRIVEx = 2, XT2BYPASS = 0,
200
fXT2,HF2 = 20 MHz, CL,eff = 15 pF
XT2DRIVEx = 3, XT2BYPASS = 0,
200
fXT2,HF3 = 32 MHz, CL,eff = 15 pF
fOSC = 6 MHz
XT2BYPASS = 0, XT2DRIVEx = 0,
0.5
TA = 25°C,
CL,eff = 15 pF
tSTART,HF
Startup time
3.0 V
ms
fOSC = 20 MHz
XT2BYPASS = 0, XT2DRIVEx = 2,
0.3
TA = 25°C,
CL,eff = 15 pF
Integrated effective load
CL,eff
1
pF
capacitance, HF mode(6) (1)
Duty cycle
Measured at ACLK, fXT2,HF2 = 20 MHz
40
50
60
%
fFault,HF
Oscillator fault frequency(7)
XT2BYPASS = 1(8)
30
300
kHz
(5)
Oscillation allowance is based on a safety factor of 5 for recommended crystals.
(6)
Includes parasitic bond and package capacitance (approximately 2 pF per pin).
Since the PCB adds additional capacitance, it is recommended to verify the correct load by measuring the ACLK frequency. For a
correct setup, the effective load capacitance should always match the specification of the used crystal.
(7)
Frequencies below the MIN specification set the fault flag. Frequencies above the MAX specification do not set the fault flag.
Frequencies in between might set the flag.
(8)
Measured with logic-level input frequency but also applies to operation with crystals.
Internal Very-Low-Power Low-Frequency Oscillator (VLO)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
fVLO
VLO frequency
Measured at ACLK
1.8 V to 3.6 V
6
9.4
14
kHz
dfVLO/dT
VLO frequency temperature drift
Measured at ACLK(1)
1.8 V to 3.6 V
0.5
%/°C
dfVLO/dVCC VLO frequency supply voltage drift
Measured at ACLK(2)
1.8 V to 3.6 V
4
%/V
Duty cycle
Measured at ACLK
1.8 V to 3.6 V
40
50
60
%
(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)
Internal Reference, Low-Frequency Oscillator (REFO)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
UNIT
IREFO
REFO oscillator current consumption TA = 25°C
1.8 V to 3.6 V
3
A
REFO frequency calibrated
Measured at ACLK
1.8 V to 3.6 V
32768
Hz
fREFO
Full temperature range
1.8 V to 3.6 V
±3.5
REFO absolute tolerance calibrated
%
TA = 25°C
3 V
±1.5
dfREFO/dT
REFO frequency temperature drift
Measured at ACLK(1)
1.8 V to 3.6 V
0.01
%/°C
dfREFO/dVCC
REFO frequency supply voltage drift
Measured at ACLK(2)
1.8 V to 3.6 V
1.0
%/V
Duty cycle
Measured at ACLK
1.8 V to 3.6 V
40
50
60
%
tSTART
REFO startup time
40%/60% duty cycle
1.8 V to 3.6 V
25
s
(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)
50
Copyright 2010, Texas Instruments Incorporated
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