LM3S102 Datasheet, PDF (326/335 Pages) List of Unclassifed Manufacturers – Microcontroller

Electrical Characteristics
18.2.7 General-Purpose I/O
Table 18-13. GPIO Characteristics^a
Parameter Parameter Name
t_GPIOR
GPO Rise Time
(from 20% to 80%
of V_DD)
t_GPIOF
GPO Fall Time
(from 80% to 20%
of V_DD)
a. All GPIOs are 5 V-tolerant.
Condition
2-mA drive
4-mA drive
8-mA drive
8-mA drive with slew rate control
2-mA drive
4-mA drive
8-mA drive
8-mA drive with slew rate control
18.2.8 Reset
Min
Nom
Max
Unit
-
17
26
ns
9
13
ns
6
9
ns
10
12
ns
-
17
25
ns
8
12
ns
6
10
ns
11
13
ns
Table 18-14. Reset Characteristics
Parameter
No.
Parameter
Parameter Name
Min
Nom
Max
Unit
R1
V_TH
Reset threshold
-
2.0
-
V
R2
V_BTH
Brown-Out threshold
2.85
2.9
2.95
V
R3
T_POR
Power-On Reset timeout
-
10
-
ms
R4
T_BOR
Brown-Out timeout
-
500
-
μs
R5
T_IRPOR
Internal reset timeout after POR
R6
T_IRBOR
Internal reset timeout after BOR^a
15
-
30
ms
2.5
-
20
μs
R7
T_IRHWR
Internal reset timeout after hardware
reset (RST pin)
15
-
30
ms
R8
T_IRSWR
Internal reset timeout after
software-initiated system reset^a
2.5
-
20
μs
R9
T_IRWDR
Internal reset timeout after watchdog
reset^a
2.5
-
20
μs
R10
T_IRLDOR
Internal reset timeout after LDO reset^a
2.5
-
20
μs
R11
T_VDDRISE Supply voltage (V_DD) rise time (0V-3.3V)
100
ms
a. 20 * t_{MOSC_PER}
326
October 6, 2006
Preliminary