LM3S3748 Datasheet, PDF (692/753 Pages) List of Unclassifed Manufacturers – Microcontroller

Electrical Characteristics
24.1.3
24.1.4
Parameter Parameter Name
Min
V_OHa High-level output voltage
2.4
V_OLa Low-level output voltage
-
I_OH High-level source current, V_OH=2.4 V
2-mA Drive 2.0
4-mA Drive 4.0
8-mA Drive 8.0
I_OL Low-level sink current, V_OL=0.4 V
2-mA Drive 2.0
4-mA Drive 4.0
8-mA Drive 8.0
a. V_OL and V_OH shift to 1.2 V when using high-current GPIOs.
Nom
-
-
-
-
-
-
-
-
Max Unit
-
V
0.4
V
- mA
- mA
- mA
- mA
- mA
- mA
On-Chip Low Drop-Out (LDO) Regulator Characteristics
Table 24-3. LDO Regulator Characteristics
Parameter Parameter Name
Min Nom Max Unit
V_LDOOUT Programmable internal (logic) power supply output value 2.25 2.5 2.75 V
Output voltage accuracy
- 2% - %
t_PON
t_ON
t_OFF
V_STEP
C_LDO
Power-on time
Time on
Time off
Step programming incremental voltage
External filter capacitor size for internal power supply
- - 100 µs
- - 200 µs
- - 100 µs
- 50 - mV
1.0 - 3.0 µF
Power Specifications
The power measurements specified in the tables that follow are run on the core processor using
SRAM with the following specifications (except as noted):
■ V_DD = 3.3 V
■ V_DD25 = 2.50 V
■ V_BAT = 3.0 V
■ V_DDA = 3.3 V
■ Temperature = 25°C
■ Clock Source (MOSC) =3.579545 MHz Crystal Oscillator
■ Main oscillator (MOSC) = enabled
■ Internal oscillator (IOSC) = disabled
692
April 08, 2008
Preliminary