LM3S8971 Datasheet, PDF (531/577 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S8971 Microcontroller
Function
Power
Pin Name
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GNDA
Pin
Number
9
15
21
33
39
45
54
57
63
69
82
87
94
4
Pin Type
-
-
-
-
-
-
-
-
-
-
-
-
-
-
GNDA
97
-
HIB
51
O
LDO
7
-
VBAT
55
-
VDD
8
-
VDD
20
-
VDD
32
-
VDD
44
-
VDD
56
-
VDD
68
-
VDD
81
-
VDD
93
-
VDD25
14
-
VDD25
38
-
VDD25
62
-
Buffer
Type
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
TTL
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Description
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
Ground reference for logic and I/O pins.
The ground reference for the analog circuits (ADC,
Analog Comparators, etc.). These are separated
from GND to minimize the electrical noise contained
on VDD from affecting the analog functions.
The ground reference for the analog circuits (ADC,
Analog Comparators, etc.). These are separated
from GND to minimize the electrical noise contained
on VDD from affecting the analog functions.
An output that indicates the processor is in
hibernate mode.
Low drop-out regulator output voltage. This pin
requires an external capacitor between the pin and
GND of 1 µF or greater. When the on-chip LDO is
used to provide power to the logic, the LDO pin
must also be connected to the VDD25 pins at the
board level in addition to the decoupling
capacitor(s).
Power source for the Hibernation Module. It is
normally connected to the positive terminal of a
battery and serves as the battery
backup/Hibernation Module power-source supply.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for I/O and some logic.
Positive supply for most of the logic function,
including the processor core and most peripherals.
Positive supply for most of the logic function,
including the processor core and most peripherals.
Positive supply for most of the logic function,
including the processor core and most peripherals.
October 01, 2007
531
Preliminary