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MSP430FG47X Datasheet, PDF (38/91 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER
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MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
crystal oscillator, LFXT1, high frequency modes
fLFXT1
fLFXT1
CL,eff
PARAMETER
LFXT1 oscillator crystal frequency
LFXT1 oscillator crystal frequency
Integrated effective load
capacitance, HF mode
(see Note 1)
TEST CONDITIONS
Ceramic resonator
Crystal resonator
(see Note 2)
VCC
1.8 V to 3.6 V
1.8 V to 3.6 V
MIN
0.45
1
TYP MAX UNIT
8 MHz
8 MHz
1
pF
Duty cycle
Measured at P1.5/ACLK,
2.2 V/3 V
40
50
60 %
NOTES: 1. 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.
2. Requires external capacitors at both terminals. Values are specified by crystal manufacturers.
crystal oscillator, XT2, high frequency modes
fXT2
fXT2
CL,eff
PARAMETER
XT2 oscillator crystal frequency
XT2 oscillator crystal frequency
Integrated effective load
capacitance, HF mode
(see Note 1)
TEST CONDITIONS
Ceramic resonator
Crystal resonator
(see Note 2)
VCC
1.8 V to 3.6 V
1.8 V to 3.6 V
MIN
0.45
1
TYP MAX UNIT
8 MHz
8 MHz
1
pF
Duty cycle
Measured at P1.4/SMCLK,
2.2 V/3 V
40
50
60 %
NOTES: 1. 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.
2. Requires external capacitors at both terminals. Values are specified by crystal manufacturers.
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