LM3S1601 Datasheet, PDF (531/587 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Stellaris^® LM3S1601 Microcontroller
Table 16-6. Signals by Signal Name (continued)
Pin Name
Pin Number Pin Type Buffer Type^a Description
GND
B6
-
Power Ground reference for logic and I/O pins.
C4
C5
F10
F11
F12
H3
J3
J10
K5
K6
K10
L10
GNDA
A5
-
Power The ground reference for the analog circuits ( Analog
B5
Comparators, etc.). These are separated from GND to
minimize the electrical noise contained on VDD from affecting
the analog functions.
HIB
I2C0SCL
I2C0SDA
I2C1SCL
I2C1SDA
M12
O
C11
I/O
C12
I/O
L6
I/O
M6
I/O
OD
An open-drain output with internal pull-up that indicates the
processor is in Hibernate mode.
OD
I²C module 0 clock.
OD
I²C module 0 data.
OD
I²C module 1 clock.
OD
I²C module 1 data.
LDO
E3
-
Power Low drop-out regulator output voltage. This pin requires an
external capacitor between the pin and GND of 1 µF or
greater. The LDO pin must also be connected to the VDD25
pins at the board level in addition to the decoupling
capacitor(s).
NC
A1
-
-
No connect. Leave the pin electrically unconnected/isolated.
A2
A3
A4
B1
B2
B3
B4
OSC0
L11
I
Analog Main oscillator crystal input or an external clock reference
input.
OSC1
M11
O
Analog Main oscillator crystal output. Leave unconnected when using
a single-ended clock source.
PA0
L3
I/O
TTL
GPIO port A bit 0.
PA1
M3
I/O
TTL
GPIO port A bit 1.
PA2
M4
I/O
TTL
GPIO port A bit 2.
PA3
L4
I/O
TTL
GPIO port A bit 3.
PA4
L5
I/O
TTL
GPIO port A bit 4.
PA5
M5
I/O
TTL
GPIO port A bit 5.
PA6
L6
I/O
TTL
GPIO port A bit 6.
PA7
M6
I/O
TTL
GPIO port A bit 7.
PB0
E12
I/O
TTL
GPIO port B bit 0.
PB1
D12
I/O
TTL
GPIO port B bit 1.
June 19, 2012
531
Texas Instruments-Production Data