LM3S328 Datasheet, PDF (355/371 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S328 Data Sheet
18.2.3
Table 18-7. Clock Characteristics
Parameter
Parameter Name
Min
Nom
Max
Unit
f_IOSC
Internal oscillator
frequency
7
15
22
MHz
f_MOSC
Main oscillator frequency
1
t_{MOSC_PER}
Main oscillator period
125
f_{REF_CRYSTAL_BYPASS} Crystal reference using the
1
main oscillator (PLL in
BYPASS mode)^a
-
8
MHz
-
1000
ns
-
8
MHz
f_{REF_EXT_BYPASS}
External clock reference
0
(PLL in BYPASS mode)^a
-
25
MHz
f_{SYSTEM_CLOCK}
System clock
0
-
25
MHz
a. The ADC must be clocked from the PLL or directly from a 14-MHz to 18-MHz clock source in order to operate
properly.
Temperature Sensor
Table 18-8. Temperature Sensor Characteristics
Parameter Parameter Name
Min
V_TSO
t_TSERR
t_TSNL
Output voltage
0.3
Output voltage temperature
-
accuracy
Output temperature nonlinearity
-
Nom
-
-
-
Max
2.7
± 3.5
±1
Unit
V
°C
°C
18.2.4 Analog-to-Digital Converter
Table 18-9. ADC Characteristics
Parameter
Parameter Name
Min
Nom
Max
Unit
V_ADCIN
C_ADCIN
Maximum single-ended, full-scale
-
analog input voltage
Minimum single-ended, full-scale
-
analog input voltage
Maximum differential, full-scale
-
analog input voltage
Minimum differential, full-scale analog
-
input voltage
Equivalent input capacitance
-
-
3.0
V
-
0
V
-
1.5
V
-
-1.5
V
1
-
pF
April 27, 2007
355
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