LM3S308 Luminary Micro, Inc, LM3S308 Datasheet - Page 395

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LM3S308

Manufacturer Part Number
LM3S308
Description
Lm3s308 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet

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19.2.9
June 04, 2008
Table 19-14. GPIO Characteristics
Reset
Table 19-15. Reset Characteristics
a. 20 * t
Figure 19-9. External Reset Timing (RST)
Parameter
Parameter No.
t
t
GPIOR
GPIOF
R10
R11
R1
R2
R3
R4
R5
R6
R7
R8
R9
(Internal)
MOSC_per
/Reset
RST
Parameter Name
GPIO Rise Time (from 20% to 80% of V
GPIO Fall Time (from 80% to 20% of V
Parameter
T
T
T
T
T
T
T
VDDRISE
T
T
IRLDOR
V
IRHWR
IRSWR
IRWDR
IRPOR
IRBOR
V
POR
BOR
BTH
TH
Parameter Name
Reset threshold
Brown-Out threshold
Power-On Reset timeout
Brown-Out timeout
Internal reset timeout after POR
Internal reset timeout after BOR
Internal reset timeout after hardware reset (RST pin)
Internal reset timeout after software-initiated system reset
Internal reset timeout after watchdog reset
Internal reset timeout after LDO reset
Supply voltage (V
Preliminary
DD
R7
) rise time (0 V-3.3 V)
DD
DD
)
)
Condition
8-mA drive with slew rate control
8-mA drive with slew rate control
a
a
2-mA drive
4-mA drive
8-mA drive
2-mA drive
4-mA drive
8-mA drive
a
a
2.85
Min
2.5
2.5
2.5
2.5
15
15
Min
-
-
-
-
LM3S308 Microcontroller
-
-
Nom
500
Nom
2.0
2.9
10
17
10
17
11
-
-
-
-
-
-
-
9
6
8
6
Max
2.95
100
Max
30
20
30
20
20
20
26
13
12
25
12
10
13
-
-
-
9
Unit
ms
ms
ms
ms
Unit
µs
µs
µs
µs
µs
V
V
ns
ns
ns
ns
ns
ns
ns
ns
395

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