LM3S2620 Datasheet, PDF (655/700 Pages) Texas Instruments – Stellaris® LM3S2620 Microcontroller

Stellaris^® LM3S2620 Microcontroller
21.2.3
Table 21-11. Crystal Characteristics
Parameter Name
Frequency
Frequency tolerance
Aging
Oscillation mode
Temperature stability (-40°C to 85°C)
Temperature stability (-40°C to 105°C)
Motional capacitance (typ)
Motional inductance (typ)
Equivalent series resistance (max)
Shunt capacitance (max)
Load capacitance (typ)
Drive level (typ)
8
±50
±5
Parallel
±25
±25
27.8
14.3
120
10
16
100
Value
6
4
±50
±50
±5
±5
Parallel
Parallel
±25
±25
±25
±25
37.0
55.6
19.1
28.6
160
200
10
10
16
16
100
100
3.5
±50
±5
Parallel
±25
±25
63.5
32.7
220
10
16
100
Units
MHz
ppm
ppm/yr
-
ppm
ppm
pF
mH
Ω
pF
pF
µW
JTAG and Boundary Scan
Table 21-12. 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
2-mA drive
9
J13
TCK fall to High-Z
t _{TDO_DVZ} ^{from Data Valid}
4-mA drive
8-mA drive
7
-
6
8-mA drive with slew rate control
7
J14
t_TRST
TRST assertion time
J15
t_{TRST_SU}
TRST setup time to TCK rise
100
-
10
-
Max
10
-
-
-
10
10
-
-
-
-
35
26
25
29
35
25
24
28
11
9
8
9
-
-
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
June 18, 2012
655
Texas Instruments-Production Data