LM3S2110-IQN20-A0 Luminary Micro, Inc., LM3S2110-IQN20-A0 Datasheet - Page 454

• Manufacturer Part Number: LM3S2110-IQN20-A0
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

Electrical Characteristics
20.2.3
20.2.4
454
Analog Comparator
Table 20-9. Analog Comparator Characteristics
Table 20-10. Analog Comparator Voltage Reference Characteristics
I
Table 20-11. I
a. Values depend on the value programmed into the TPR bit in the I
b. Because I2CSCL and I2CSDA are open-drain-type outputs, which the controller can only actively drive Low, the time
c. Specified at a nominal 50 pF load.
Parameter Name
Motional inductance (typ)
Equivalent series resistance (max)
Shunt capacitance (max)
Load capacitance (typ)
Drive level (typ)
Parameter
Parameter
Parameter No.
2
C
C
V
R
programmed for the maximum I2CSCL frequency (TPR=0x2) results in a minimum output timing as shown in the table
above. The I
period. The actual position is affected by the value programmed into the TPR; however, the numbers given in the above
values are minimum values.
I2CSCL or I2CSDA takes to reach a high level depends on external signal capacitance and pull-up resistor values.
V
T
R
A
T
A
MRR
CM
MC
OS
RT
HR
HR
LR
LR
I1
I2
I3
I4
I5
I6
I7
I8
I9
a
a
b
a
c
a
a
a
a
Parameter Name
Input offset voltage
Input common mode voltage range
Common mode rejection ratio
Response time
Comparator mode change to Output Valid
Parameter Name
Resolution high range
Resolution low range
Absolute accuracy high range
Absolute accuracy low range
2
Parameter
2
C interface is designed to scale the actual data transition time to move it to the middle of the I2CSCL Low
C Characteristics
t
t
t
SCSR
t
t
SCH
t
t
t
t
SRT
SFT
SCS
DH
HT
DS
LP
Parameter Name
Start condition hold time
Clock Low period
I2CSCL/I2CSDA rise time (V
Data hold time
I2CSCL/I2CSDA fall time (V
Clock High time
Data setup time
Start condition setup time (for repeated start condition
only)
Stop condition setup time
14.3
120
100
10
16
Min
-
-
-
-
Preliminary
19.1
160
100
10
16
V
V
Nom
Value
DD
DD
-
-
/32
/24
28.6
200
100
Min
10
16
50
0
Max
±1/2
±1/4
-
-
-
IH
IL
-
-
=2.4 V to V
=0.5 V to V
Nom
±10
Unit
LSB
LSB
LSB
LSB
-
-
-
-
32.7
220
100
10
16
2
V
C Master Timer Period (I2CMTPR) register; a TPR
DD
Max
±25
10
1
-
-1.5
Units
IL
IH
mH
µW
pF
pF
=0.5 V)
Ω
=2.4 V)
Unit
mV
dB
µs
µs
V
Min
36
36
24
18
36
24
2
-
-
Nom
9
-
-
-
-
-
-
-
-
(see note b)
Max
10
November 29, 2007
-
-
-
-
-
-
-
system clocks
system clocks
system clocks
system clocks
system clocks
system clocks
system clocks
Unit
ns
ns