LM3S1958 Datasheet, PDF (407/435 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S1958 Microcontroller
19.2.3
19.2.4
19.2.5
Parameter Name
Value
Units
Frequency tolerance
±50 ±50 ±50 ±50 ppm
Aging
±5
±5
±5
±5 ppm/yr
Oscillation mode
Parallel Parallel Parallel Parallel
Temperature stability (0 - 85 °C) ±25 ±25 ±25 ±25 ppm
Motional capacitance (typ)
27.8 37.0 55.6 63.5 pF
Motional inductance (typ)
14.3 19.1 28.6 32.7 mH
Equivalent series resistance (max) 120 160 200 220 Ω
Shunt capacitance (max)
10
10
10
10
pF
Load capacitance (typ)
16
16
16
16
pF
Drive level (typ)
100 100 100 100 µW
Temperature Sensor
Table 19-8. Temperature Sensor Characteristics
Parameter Parameter Name
Min Nom Max Unit
V _TSO
t _TSERR
t _TSNL
Output voltage
0.3 - 2.7 V
Output voltage temperature accuracy - - ±3.5 ˚C
Output temperature nonlinearity
- - ±1 ˚C
Analog-to-Digital Converter
Table 19-9. ADC Characteristics
Parameter Parameter Name
Min Nom Max Unit
V_ADCIN
Maximum single-ended, full-scale analog input voltage -
Minimum single-ended, full-scale analog input voltage -
- 3.0 V
- 0V
Maximum differential, full-scale analog input voltage - - 1.5 V
Minimum differential, full-scale analog input voltage
- - -1.5 V
C_ADCIN
N
Equivalent input capacitance
Resolution
-1
- 10
- pF
- bits
f_ADC
t_ADCCONV
f _ADCCONV
INL
ADC internal clock frequency
Conversion time
Conversion rate
Integral nonlinearity
14 16 18 MHz
-
-
16 t_ADCcycles^a
875 1000 1125 k samples/s
- - ±1 LSB
DNL
Differential nonlinearity
- - ±1 LSB
OFF
Offset
- - ±1 LSB
GAIN
Gain
- - ±1 LSB
a. t_ADC= 1/f_{ADC clock}
I²C
Table 19-10. I²C Characteristics
Parameter No. Parameter Parameter Name
I1^a
t_SCH Start condition hold time
Min Nom Max
36 -
-
Unit
system clocks
June 14, 2007
407
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