LM3S1512_16 Datasheet, PDF (612/660 Pages) Texas Instruments – Stellaris LM3S1512 Microcontroller

Electrical Characteristics
Table 20-11. Crystal Characteristics
Parameter Name
Value
Frequency
Frequency tolerance^a
8
6
4
±50
±50
±50
Oscillation mode
Parallel
Parallel
Parallel
Motional capacitance (typ)
27.8
37.0
55.6
Motional inductance (typ)
14.3
19.1
28.6
Equivalent series resistance (max)
120
160
200
Shunt capacitance (max)
10
10
10
Load capacitance (typ)
16
16
16
Drive level (typ)
100
100
100
a. This tolerance provides a guard band for temperature stability and aging drift.
20.2.2.1 System Clock Specifications with ADC Operation
3.5
±50
Parallel
63.5
32.7
220
10
16
100
Units
MHz
ppm
-
pF
mH
Ω
pF
pF
µW
Table 20-12. System Clock Characteristics with ADC Operation
Parameter Parameter Name
Min
f_sysadc
System clock frequency when the ADC module is
16
operating (when PLL is bypassed)
Nom
Max
-
-
Unit
MHz
20.2.3 JTAG and Boundary Scan
Table 20-13. JTAG Characteristics
Parameter
No.
Parameter Parameter Name
Min
Nom
J1
f_TCK
TCK operational clock frequency
J2
t_TCK
TCK operational clock period
J3
t_{TCK_LOW}
TCK clock Low time
J4
t_{TCK_HIGH}
TCK clock High time
J5
t_{TCK_R}
TCK rise time
J6
t_{TCK_F}
TCK fall time
J7
t_{TMS_SU}
TMS setup time to TCK rise
J8
t_{TMS_HLD}
TMS hold time from TCK rise
J9
t_{TDI_SU}
TDI setup time to TCK rise
J10
t_{TDI_HLD}
TDI hold time from TCK rise
2-mA drive
0
-
100
-
-
t_TCK/2
-
t_TCK/2
0
-
0
-
20
-
20
-
25
-
25
-
23
J11
TCK fall to Data
t _{TDO_ZDV} ^{Valid from High-Z}
4-mA drive
8-mA drive
15
-
14
8-mA drive with slew rate control
18
2-mA drive
21
J12
t _{TDO_DV}
TCK fall to Data
Valid from Data
Valid
4-mA drive
8-mA drive
14
-
13
8-mA drive with slew rate control
18
Max
10
-
-
-
10
10
-
-
-
-
35
26
25
29
35
25
24
28
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
612
July 15, 2014
Texas Instruments-Production Data