MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
38
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted)
crystal oscillator, LFXT1, high frequency modes
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX UNIT
f
LFXT1
LFXT1 oscillator crystal frequency
Ceramic resonator
1.8 V to 3.6 V
0.45
8
MHz
f
LFXT1
LFXT1 oscillator crystal frequency
Crystal resonator
1.8 V to 3.6 V
1
8
MHz
C
L,eff
Integrated effective load
capacitance, HF mode
(see Note 1)
(see Note 2)
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
PARAMETER
TEST CONDITIONS
V
CC
MIN
TYP
MAX UNIT
f
XT2
XT2 oscillator crystal frequency
Ceramic resonator
1.8 V to 3.6 V
0.45
8
MHz
f
XT2
XT2 oscillator crystal frequency
Crystal resonator
1.8 V to 3.6 V
1
8
MHz
C
L,eff
Integrated effective load
capacitance, HF mode
(see Note 1)
(see Note 2)
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.
Содержание MSP430FG47x
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